WO2017221932A1 - セラミックス複合体及びそのセラミックス複合体の製造方法 - Google Patents
セラミックス複合体及びそのセラミックス複合体の製造方法 Download PDFInfo
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- WO2017221932A1 WO2017221932A1 PCT/JP2017/022695 JP2017022695W WO2017221932A1 WO 2017221932 A1 WO2017221932 A1 WO 2017221932A1 JP 2017022695 W JP2017022695 W JP 2017022695W WO 2017221932 A1 WO2017221932 A1 WO 2017221932A1
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/82—Coating or impregnation with organic materials
- C04B41/83—Macromolecular compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0022—Blanks or green, unfinished dental restoration parts
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/483—Polyacrylates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/4857—Other macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B41/4869—Polyvinylalcohols, polyvinylacetates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0306—Inorganic insulating substrates, e.g. ceramic, glass
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
- A61C13/083—Porcelain or ceramic teeth
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00836—Uses not provided for elsewhere in C04B2111/00 for medical or dental applications
Definitions
- the present invention relates to a ceramic composite and a method for producing the ceramic composite.
- a composite material currently in practical use is a composite material of ceramic fibers and resin, and is used as a mechanical part or a structural material, called FRP (Fiber Reinforced Plastics) or CFRP (Carbon Fiber Reinforced Plastics).
- ceramic fibers are formed into a thin cloth, and resin is applied or immersed in the resin.
- resin is applied or immersed in the resin.
- ceramic fibers are placed in a mold and a resin is applied, and this is repeated in order to obtain a product shape, and then the resin is manufactured at room temperature or by heat curing.
- Patent Document 1 is disclosed as a manufacturing method for solving such a problem.
- a ceramic porous body having a relative density of 40% or more is immersed in a liquid resin, the liquid resin is infiltrated into the ceramic porous body by vacuum treatment, and the infiltrated resin is cured.
- a method for producing a composite material with a resin is disclosed.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a ceramic composite capable of achieving both improvement in fracture toughness while improving ease of processing, and a method for producing the same.
- the ceramic composite of the present invention is characterized in that the resin is infiltrated into the ceramic sintered body and has a relative density of 40% or more and 90% or less.
- the method for producing a ceramic composite of the present invention includes preparing a ceramic sintered body and a liquid resin that are sintered at a temperature of ⁇ 700 ° C. or higher and ⁇ 100 ° C. or lower from a sintering temperature at which a theoretical density is obtained.
- a ceramic sintered body having a relative density of 40% or more and 90% or less is obtained by immersing the ceramic sintered body into the ceramic sintered body, infiltrating the liquid resin into the ceramic sintered body, solidifying the infiltrated liquid resin, and infiltrating the resin. It is characterized by things.
- the resin is applied to the ceramic sintered body that is sintered at a temperature of ⁇ 700 ° C. or higher and ⁇ 100 ° C. or lower from the sintering temperature at which the theoretical density is obtained.
- improving the fracture toughness to a desired value can be realized by infiltrating a predetermined amount of resin into a ceramic sintered body formed of a predetermined material and volume, so that it is not necessary to infiltrate a larger amount. . Therefore, by intentionally leaving a gap through which the resin does not permeate, it is possible to improve both fracture toughness and processability.
- the resin is infiltrated with either polyvinyl alcohol or polymethyl methacrylate resin, and by leaving a gap through which the resin does not penetrate, the relative density is set to 45% or more and 60% or less, and the thickness is 0.04 mm. and 0.06mm with a very thin and precise formation process referred less allows, ceramic composite which it becomes possible to improve the fracture toughness to the extent 0.11MPam 1/2 super and 0.21MPam less 1/2 or more The body can be realized.
- the ceramic material that penetrates the resin is either silica, alumina, zirconia, hydroxyapatite, or ⁇ -tricalcium phosphate, thereby realizing a ceramic composite that has both fracture toughness and ease of processing that are optimal for dental applications. It becomes possible to do.
- test piece produced with the ceramic composite_body
- A It is a top view of the test piece of FIG.
- B is a BB side sectional view of the test piece of FIG. It is the elements on larger scale in circle C of Drawing 2 (b).
- the first feature of the present embodiment is that the ceramic composite has a relative density of 40% or more and 90% or less when the resin is infiltrated into the ceramic sintered body.
- the second feature is that the method for producing a ceramic composite includes a ceramic sintered body and a liquid resin sintered at a temperature of ⁇ 700 ° C. or higher and ⁇ 100 ° C. or lower from a sintering temperature at which a theoretical density is obtained.
- a ceramic composite having a relative density of 40% or more and 90% or less by immersing a ceramic sintered body in a liquid resin, infiltrating the liquid resin into the ceramic sintered body, solidifying the infiltrated liquid resin, and infiltrating the resin To get a body.
- the third feature is that a gap in which the resin does not penetrate is formed in the ceramic composite.
- the fracture toughness of the ceramic composite can be improved.
- by intentionally leaving the gap where the resin is not infiltrated excessive improvement in fracture toughness can be suppressed while providing voids. Therefore, the resistance to destruction when a mechanical load is applied is not excessive, and the ease of processing with respect to an external force is improved. Therefore, the ease of processing of the ceramic composite can be improved, and the ceramic composite can be formed extremely thinly and precisely.
- improving the fracture toughness to a desired value can be realized by infiltrating a predetermined amount of resin into a ceramic sintered body formed of a predetermined material and volume, so that it is not necessary to infiltrate a larger amount. . Therefore, by intentionally leaving a gap through which the resin does not permeate, it is possible to improve both fracture toughness and processability.
- the relative density is a relative density with respect to a theoretical density exhibited by a ceramic sintered body made of a desired ceramic raw material.
- the term “sintering” refers to a process of producing a solid body (solid body made of ceramics) from a ceramic raw material, and includes firing, pre-firing, or pre-sintering that are conventionally used. Shall be.
- the ceramic sintered body is a solidified body made of ceramics produced by sintering in the present invention, and includes a ceramic fired body, a ceramic pre-fired body, or a ceramic pre-sintered body.
- the sintering temperature at which a theoretical density is obtained refers to a sintering temperature at which a ceramic sintered body made of a desired ceramic raw material can obtain a theoretical density.
- theoretical density in particular, silica 2.20 g / cm 3, alumina 3.99 g / cm 3, zirconia 6.07 g / cm 3, hydroxyapatite 3.16 g / cm 3, the ⁇ -TCP3.07g / cm 3 It refers to the sintering temperature when a ceramic sintered body with each theoretical density is formed.
- the fourth feature is that the relative density of the ceramic composite is 45% or more and 60% or less.
- the fifth feature is that the thickness of the thinnest part of the ceramic composite is 0.04 mm or more and 0.06 mm or less.
- the fracture toughness of the ceramic composite is referred to as 0.11MPam 1/2 is ultra and 0.21MPam less than 1/2.
- the seventh feature is that the resin to be permeated is either polyvinyl alcohol or polymethyl methacrylate resin.
- the relative density is set to 45% or more and 60% or less, and an extremely thin and precise forming process of 0.04 mm or more and 0.06 mm or less becomes possible, and more than 0.11 MPam 1/2 Moreover, it is possible to realize a ceramic composite capable of improving fracture toughness to a range of less than 0.21 MPam 1/2 .
- the eighth feature is that the ceramic material forming the ceramic sintered body is any one of silica, alumina, zirconia, hydroxyapatite, and ⁇ -tricalcium phosphate. Therefore, it is possible to realize a ceramic composite having both fracture toughness and ease of processing that are optimal for dental use.
- the ceramic composite of the present embodiment is a ceramic composite having a relative density of 40% or more and 90% or less, in which a resin is infiltrated into a ceramic sintered body made of a desired ceramic raw material.
- a plurality of gaps are formed in the ceramic composite of this embodiment as a relative density of less than 10% or less than 40%.
- a ceramic sintered body is prepared in advance as a porous body having a plurality of gaps.
- the resin penetrates into the ceramic sintered body, from the viewpoint of improving fracture toughness, it is possible to penetrate as much resin as possible so as to fill all gaps formed in the ceramic sintered body. desirable.
- the ceramic composite of this embodiment after the resin has permeated the ceramic sintered body, it has a relative density of not less than 40% and not more than 90%, so that a gap in which the resin is not permeated is intentionally formed. And
- the resin By infiltrating the resin into the ceramic sintered body, the resin is infiltrated and filled in the gap, and the fracture toughness can be improved.
- the gap By intentionally leaving the gap where the resin is not infiltrated, excessive improvement in fracture toughness can be suppressed while providing voids. Therefore, the resistance to destruction when a mechanical load is applied is not excessive, and the ease of processing with respect to an external force is improved. Therefore, it is possible to improve the ease of processing of the ceramic composite while realizing a desired value of fracture toughness, and the ceramic composite can be formed extremely thinly and precisely.
- improving the fracture toughness to a desired value can be realized by infiltrating a predetermined amount of resin into a ceramic sintered body formed of a predetermined material and volume, so that it is not necessary to infiltrate a larger amount. . Therefore, by intentionally leaving a gap through which the resin does not permeate, it is possible to improve both fracture toughness and processability.
- the relative density of the ceramic composite is less than 40%, the gap becomes excessive, and the fracture toughness value necessary for a ceramic composite for dental use cannot be secured.
- the relative density exceeds 90%, the gap becomes too small, and the ease of processing with respect to external force decreases.
- the relative density is set to 45% or more and 60% or less from the viewpoint of high compatibility of improvement in fracture toughness and ease of processing as a ceramic composite for dental use.
- the 0.11MPam 1/2 super and it secured in the range of less than 0.21MPam 1/2 is preferred as fracture toughness, the applicant has found by verification and application research.
- the fracture toughness is 0.11 MPam 1/2 or less, high-precision formation as a ceramic composite for dental use becomes impossible.
- it is 0.21 MPam 1/2 or more, it is preferable only from the viewpoint of improving fracture toughness, but since resistance to fracture when a mechanical load is applied increases, the ease of processing against external force decreases.
- the resin to be infiltrated is either polyvinyl alcohol (PVA) or polymethyl methacrylate resin (PMMA: Polymethyl Methacrylate).
- PVA polyvinyl alcohol
- PMMA polymethyl methacrylate resin
- the ceramic material forming the ceramic sintered body is any one of silica, alumina, zirconia, hydroxyapatite, and ⁇ -tricalcium phosphate ( ⁇ -TCP). Therefore, it is possible to realize a ceramic composite having both fracture toughness and ease of processing that are optimal for dental use.
- the ceramic raw material to be used is any one of silica, alumina, zirconia, hydroxyapatite, and ⁇ -TCP.
- the ceramic raw material may be prepared as a powder or the like.
- the ceramic raw material is formed, and the formed ceramic raw material is sintered at a temperature of ⁇ 700 ° C. or higher and ⁇ 100 ° C. or lower from a sintering temperature at which a theoretical density is obtained, and is sintered with a porous body having a plurality of gaps. Prepare your body.
- the sintering temperature at which the theoretical density is obtained refers to the sintering temperature at which a ceramic sintered body made of a desired ceramic raw material can obtain the theoretical density.
- theoretical density in particular, silica 2.20 g / cm 3, alumina 3.99 g / cm 3, zirconia 6.07 g / cm 3, hydroxyapatite 3.16 g / cm 3, the ⁇ -TCP3.07g / cm 3 It refers to the sintering temperature when a ceramic sintered body with each theoretical density is formed. From this sintering temperature, sintering is performed at ⁇ 700 ° C. or more and ⁇ 100 ° C. or less.
- each ceramic sintered body from which a theoretical density is obtained is as follows. Silica 1400 ° C, alumina 1550 ° C, zirconia 1450 ° C, hydroxyapatite 1300 ° C, ⁇ -TCP 1300 ° C.
- the sintering temperature of the ceramic sintered body (porous body) prepared before infiltrating the resin depends on the type and particle size of the ceramic raw material, but is preferably below the temperature at which the pores of the porous body are not blocked even if the sintering proceeds. As a typical numerical range, it is desirable to sinter at 850 ° C. or more and 1050 ° C. or less.
- the atmosphere for sintering may be air or a non-oxidizing atmosphere such as a rare gas such as nitrogen or argon.
- the ceramic raw material powder may be molded and sintered, or an inorganic binder may be added to the ceramic raw material powder and then molded and sintered.
- liquid resin is prepared.
- the type of resin that permeates the ceramic sintered body may be selected as appropriate, but PVA or PMMA is preferable for dental use as described above.
- the resin is stirred or mixed with water or an organic solvent to prepare a liquid resin.
- the liquid resin most liquid resins such as a resin dissolved or dispersed in water, a resin dissolved in an organic solvent, a resin in which the resin is liquid even if not dissolved can be used.
- liquid resin with much volatile content may shrink
- the ceramic sintered body sintered earlier is placed in a vacuum apparatus and evacuated to place it in a vacuum atmosphere, and a predetermined amount of liquid resin is dropped on the ceramic sintered body, for example. Immerse the body. Deaeration is further performed when the entire ceramic sintered body is immersed in the liquid resin, and the resin is infiltrated into the gaps inside the ceramic sintered body in a vacuum atmosphere.
- the degree of vacuum is that of a rotary pump.
- the ceramic sintered body and the liquid resin are subjected to pressure treatment and further infiltrated. It is possible to use a desired method for the pressurizing process. For example, by sintering a ceramic sintered body and a liquid resin in a vacuum pack by CIP (cold isostatic pressing) process, Infiltrate the body with liquid resin.
- the pressurizing pressure is sufficient to be several atmospheres, and a pressure higher than that may be used.
- the ceramic composite according to the present embodiment is formed by heating and drying to remove moisture and solidifying the resin that has penetrated into the gap. It is sufficient to hold the heating time for about 10 minutes to 240 minutes, and a long time is acceptable.
- the ceramic composite according to the present invention it is possible to leave a gap for the first time by deriving a numerical range of fracture toughness value (particularly deriving an upper limit) as a ceramic composite for dental use.
- a numerical range of fracture toughness value particularly deriving an upper limit
- the ceramic composite may be processed with a CAD / CAM apparatus to produce a test piece 1 as shown in FIGS. 1 to 3, for example.
- the test piece 1 shown in FIGS. 1 to 3 is an object having a circular plane composed of a central portion 1a and a peripheral portion 1b. Comparing the thicknesses of the central portion 1a and the peripheral portion 1b, the thickness of the central portion 1a is formed thinner in the thickness direction t of the test piece 1 as shown in FIG. In this case, as shown in FIG. 3, the central portion is formed to be the thinnest and the thinnest portion A is formed.
- the thinnest part A can be formed thinly to 0.04 mm or more and 0.06 mm or less.
- zirconia (ZrO 2 ) powder (particle size: 0.06 ⁇ m) was prepared as a ceramic raw material.
- the ceramic raw material was molded and sintered at -450 ° C. (1000 ° C.) from the sintering temperature at which the theoretical density was obtained, to prepare a ceramic sintered body made of a porous body having a plurality of gaps.
- PVA and PMMA were prepared as resins that permeate the ceramic sintered body. Each resin was dissolved by stirring with water to prepare a liquid resin.
- the ceramic sintered body sintered earlier is put in a vacuum apparatus and is evacuated and placed in a vacuum atmosphere, and a predetermined amount of liquid resin is added to the ceramic sintered body (“resin amount (vol%) in Table 1).
- the ceramic sintered body was immersed in the liquid resin. Deaeration was performed when the entire ceramic sintered body was immersed in the liquid resin, and the resin was infiltrated into the gaps inside the ceramic sintered body in a vacuum atmosphere.
- the ceramic sintered body and the liquid resin were subjected to CIP treatment as pressure treatment, and further infiltrated. Specifically, the ceramic sintered body and the liquid resin were placed in the vacuum pack, the vacuum pack was submerged in water, and isotropic pressure was applied to the vacuum pack by CIP treatment in water.
- the ceramic sintered body After infiltrating the liquid resin into the ceramic sintered body, the ceramic sintered body is taken out and the excess resin on the surface is removed by washing with water, and then heated and dried at 70 ° C. to remove moisture, and in the gaps The infiltrated resin was solidified to form a ceramic composite.
- the ceramic composite was processed with a CAD / CAM apparatus, and five types of test pieces 1 shown in FIG. 1 to FIG. 3 were produced according to the type of resin and the amount of resin penetrated (vol%). In all cases, the relative density was 53.7%. Whether or not the thinnest part A (mm) of the test piece 1 can be formed, the thickness of the thinnest part A (mm) when it can be formed, and the fracture toughness (MPam 1/2 ) for each test piece 1 It was measured. The results are shown in Table 1. Samples described as resin PVA or PMMA in Table 1 are examples. Note that JIS T6526: 2012 was applied as a method for measuring fracture toughness.
- the thinnest part A of 0.06 (mm) can be formed with PVA and PMMA over a permeation amount of 8.9 to 15.7 (vol%) (in Table 1).
- “ ⁇ ” indicates that it can be formed over all the samples in each resin at each permeation amount, and “ ⁇ ” indicates the observation result that it is impossible to form over all the samples).
- the thinnest part A of 0.04 (mm) can be formed of a ceramic composite in which PVA is infiltrated with a penetration amount of 8.9 (vol%) (in Table 1, “ ⁇ ”). "Indicates that it can be formed with some samples).
- the comparative example is different from the above example in that a ceramic sintered body made of a porous body is prepared without impregnating the resin, and the test piece 1 having the same shape is produced. Specifically, as in the example, a ZrO 2 powder was formed, sintered at 1000 ° C. to prepare a ceramic sintered body composed of a porous body, and the ceramic sintered body was processed with a CAD / CAM device. A test piece 1 shown in FIGS. 1 to 3 was produced.
- Test piece 1a Central part 1b Peripheral part A Thinnest part of central part
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- Polymers & Plastics (AREA)
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- Epidemiology (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Public Health (AREA)
- Compositions Of Oxide Ceramics (AREA)
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- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
1a 中央部
1b 周縁部
A 中央部の最薄部
Claims (13)
- セラミックス焼結体に樹脂が浸透され、40%以上且つ90%以下の相対密度であるセラミックス複合体。
- 前記相対密度が45%以上且つ60%以下である請求項1に記載のセラミックス複合体。
- 前記樹脂が浸透されていない隙間が形成されている請求項1又は2に記載のセラミックス複合体。
- 最も薄い部分の厚みが0.04mm以上且つ0.06mm以下である請求項1から3の何れかに記載のセラミックス複合体。
- 破壊靱性が0.11MPam1/2超且つ0.21MPam1/2未満である請求項1から4の何れかに記載のセラミックス複合体。
- 前記樹脂が、ポリビニールアルコール又はポリメタクリル酸メチル樹脂の何れかである請求項1から5の何れかに記載のセラミックス複合体。
- 前記セラミックス焼結体を形成するセラミックス材料が、シリカ、アルミナ、ジルコニア、ハイドロキシアパタイト、β-リン酸三カルシウムの何れかである請求項1から6の何れかに記載のセラミックス複合体。
- 少なくとも、理論密度が得られる焼結温度から、-700℃以上且つ-100℃以下で焼結したセラミックス焼結体と液状樹脂を用意し、液状樹脂にセラミックス焼結体を浸漬し、セラミックス焼結体に液状樹脂を浸透させ、浸透した液状樹脂を固化し、樹脂を浸透させて40%以上且つ90%以下の相対密度を有するセラミックス複合体を得る、セラミックス複合体の製造方法。
- 前記相対密度が45%以上且つ60%以下である請求項8に記載のセラミックス複合体の製造方法。
- 前記樹脂が浸透していない隙間を形成する請求項8又は9に記載のセラミックス複合体の製造方法。
- 最も薄い部分の厚みを0.04mm以上且つ0.06mm以下に形成する請求項8から10の何れかに記載のセラミックス複合体の製造方法。
- 前記樹脂を、ポリビニールアルコール又はポリメタクリル酸メチル樹脂の何れかとする請求項8から11の何れかに記載のセラミックス複合体の製造方法。
- 前記セラミックス焼結体を形成するセラミックス材料を、シリカ、アルミナ、ジルコニア、ハイドロキシアパタイト、β-リン酸三カルシウムの何れかとする請求項8から12の何れかに記載のセラミックス複合体の製造方法。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17815400.1A EP3476820A4 (en) | 2016-06-23 | 2017-06-20 | CERAMIC COMPOSITE AND METHOD FOR PRODUCING A CERAMIC COMPOSITE |
| JP2018524113A JP7042495B2 (ja) | 2016-06-23 | 2017-06-20 | セラミックス複合体及びそのセラミックス複合体の製造方法 |
| US16/312,083 US11390568B2 (en) | 2016-06-23 | 2017-06-20 | Ceramic composite and production method for ceramic composite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-124299 | 2016-06-23 | ||
| JP2016124299 | 2016-06-23 |
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| WO2017221932A1 true WO2017221932A1 (ja) | 2017-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2017/022695 Ceased WO2017221932A1 (ja) | 2016-06-23 | 2017-06-20 | セラミックス複合体及びそのセラミックス複合体の製造方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11390568B2 (ja) |
| EP (1) | EP3476820A4 (ja) |
| JP (1) | JP7042495B2 (ja) |
| WO (1) | WO2017221932A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115894001A (zh) * | 2023-03-10 | 2023-04-04 | 湖南康纳新材料有限公司 | 高硬度耐磨的树脂渗透陶瓷复合材料及其制备方法和应用 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115340412A (zh) * | 2022-10-17 | 2022-11-15 | 新明珠集团股份有限公司 | 一种复合陶瓷板材及其制备方法 |
| CN116253562A (zh) * | 2023-02-16 | 2023-06-13 | 温州医科大学附属口腔医院 | 一种树脂渗透陶瓷复合材料及其制备方法 |
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| JPS63252981A (ja) * | 1987-04-08 | 1988-10-20 | 住友ベークライト株式会社 | セラミツクス−高分子複合成形品及びその製造方法 |
| JPH02275787A (ja) | 1989-04-17 | 1990-11-09 | Inax Corp | 着色セラミック製品の製造法 |
| KR100544908B1 (ko) * | 2002-04-01 | 2006-01-24 | 가부시키가이샤 무라타 세이사쿠쇼 | 세라믹 전자부품 및 그 제조방법 |
| CA2489242A1 (en) | 2002-07-12 | 2004-01-22 | Robert M. Pilliar | Method of manufacture of porous inorganic structures and infiltration with organic polymers |
| JP5173241B2 (ja) | 2006-05-02 | 2013-04-03 | 株式会社松風 | 顎歯模型用歯髄付き歯牙の製造方法 |
| US8221128B2 (en) | 2007-08-01 | 2012-07-17 | Kabushiki Kaisha Shofu | Tooth for tooth model, comprising enamel portion impregnated with resin or low melting point glass, and method for producing the same |
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-
2017
- 2017-06-20 EP EP17815400.1A patent/EP3476820A4/en not_active Withdrawn
- 2017-06-20 WO PCT/JP2017/022695 patent/WO2017221932A1/ja not_active Ceased
- 2017-06-20 JP JP2018524113A patent/JP7042495B2/ja not_active Expired - Fee Related
- 2017-06-20 US US16/312,083 patent/US11390568B2/en active Active
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| JP2001279106A (ja) * | 2000-03-29 | 2001-10-10 | Taiheiyo Cement Corp | セラミックスと樹脂との複合材料及びその製造方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115894001A (zh) * | 2023-03-10 | 2023-04-04 | 湖南康纳新材料有限公司 | 高硬度耐磨的树脂渗透陶瓷复合材料及其制备方法和应用 |
| CN115894001B (zh) * | 2023-03-10 | 2023-05-09 | 湖南康纳新材料有限公司 | 高硬度耐磨的树脂渗透陶瓷复合材料及其制备方法和应用 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2017221932A1 (ja) | 2019-06-06 |
| EP3476820A1 (en) | 2019-05-01 |
| US11390568B2 (en) | 2022-07-19 |
| EP3476820A4 (en) | 2019-12-25 |
| JP7042495B2 (ja) | 2022-03-28 |
| US20190225554A1 (en) | 2019-07-25 |
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