CN106242565B - A kind of wear-resisting ZrO2-Al2O3Complex phase ceramic particle and its preparation method and application - Google Patents
A kind of wear-resisting ZrO2-Al2O3Complex phase ceramic particle and its preparation method and application Download PDFInfo
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Abstract
本发明公开了一种耐磨ZrO2‑Al2O3复相陶瓷颗粒及其制备方法和应用，属于陶瓷复合材料制备技术领域，本发明耐磨ZrO2‑Al2O3复相陶瓷颗粒成分重量百分比组成为：10‑90％的稳定ZrO2以及10‑90％的Al2O3；采用电熔融、水冷制备得表面粗糙、粒度大小0.5‑7mm的高耐磨性ZrO2‑Al2O3复相陶瓷颗粒，生产效率高，性能稳定，并将耐磨ZrO2‑Al2O3复相陶瓷颗粒应用于制备钢铁基复合材料的增强体，能显著增强复合材料耐磨性。
The invention discloses a wear-resistant ZrO 2 -Al 2 O 3 composite ceramic particle and its preparation method and application, belonging to the technical field of ceramic composite material preparation, and the composition of the wear-resistant ZrO 2 -Al 2 O 3 composite ceramic particle in the invention The weight percentage composition is: 10-90% stable ZrO 2 and 10-90% Al 2 O 3 ; high wear resistance ZrO 2 -Al 2 O with rough surface and particle size of 0.5-7mm is prepared by electric melting and water cooling 3 The composite ceramic particles have high production efficiency and stable performance, and the application of wear-resistant ZrO 2 ‑Al 2 O 3 composite ceramic particles to the reinforcement of the steel-based composite material can significantly enhance the wear resistance of the composite material.
Description
Technical field
The present invention relates to ceramic composite preparation technical fields, more particularly to a kind of wear-resisting ZrO2-Al2O3Complex phase pottery
Porcelain particle and its preparation method and application.
Background technique
ZrO2-Al2O3Complex phase ceramic since with high obdurability, certain hardness, wearability, thermal expansion coefficient is adjustable,
It can be used as rich chromium cast iron, steel alloy, spheroidal graphite cast-iron reinforcement, the ceramics smooth for big blocky surface, due to traditional reinforced phase
With the reasons such as the associativity difference of metallic matrix, in composite material preparation and application process ceramics it is cracked and peel off influence it is multiple
The service performance of condensation material.Therefore rough surface, certain particle size size, the ceramic particle with high-wearing feature are prepared and is applied to
Steel-based composite material reinforcement is significant.
Summary of the invention
It is an object of the invention to there are problem and shortage, provide a kind of rough surface for above-mentioned, high-wearing feature is used for
Prepare the ZrO of steel-based composite material reinforcement2-Al2O3Complex phase ceramic particle and its preparation method and application.
In order to achieve the above object, the present invention provides a kind of wear-resisting ZrO2-Al2O3Complex phase ceramic particle, composition by weight percent
Composition are as follows: the stabilization ZrO of 10-90%2And the Al of 10-90%2O3；
Wherein stable ZrO2Comprising being selected from MgO2、TiO2、Y2O3One or more of arbitrary proportion mixing stabilization
Agent, the stabiliser content are no more than ZrO2The 5% of weight；
The ZrO2-Al2O3Complex phase ceramic particle is the shaggy complex phase ceramic particle of 0.5-7mm partial size.
The wear-resisting ZrO is prepared the present invention also provides a kind of2-Al2O3The method of complex phase ceramic particle, including following step
It is rapid:
(1) according to ZrO2-Al2O3Complex phase ceramic particulate component requires that ZrO will be stablized2And Al2O3Powder, which is put into electric furnace, to be melted
Melt, the stable ZrO2And Al2O3Powder dosage weight percent is respectively to stablize ZrO210-90% and Al2O310-90%；
(2), ZrO will be melted2-Al2O3Melt pours into the chute with slope, while ceramic particle, mistake is made in water flowing cooling
Sieve, obtains the shaggy complex phase ceramic particle of 0.5-7mm.
Further, as it is also preferable to include by complex phase ceramic particle made from step (2) carry out heat treatment and it is air-cooled
Step.
Further, as preferred heat treatment and it is air-cooled the following steps are included:
The complex phase ceramic particle of 0.5-7mm is put into electric furnace and is heated to 1200-1300 DEG C, keeps the temperature 1-2 hours,
Be cooled to 500-600 DEG C come out of the stove it is air-cooled.
Further, as the heating rate that the complex phase ceramic particle of 0.5-7mm is preferably put into heat temperature raising in electric furnace
60 DEG C/h of <, 100 DEG C/h of cooling velocity < after heat preservation.
Further, as 2000-2100 DEG C of melting temperature in the preferred step (1).
Further, as the cooling water consumption weight hundred during ceramic particle is made of water flowing in the preferred step (2)
Divide than being no less than ZrO2-Al2O310 times of melt.
The present invention also provides the wear-resisting ZrO2-Al2O3Complex phase ceramic particle is in preparation ZrO2-Al2O3Complex phase ceramic particle
Reinforcement enhances the application of rich chromium cast iron based wear resistant composite material, multiple as the method and rich chromium cast iron for preferably using gravity casting
It closes, ZrO2-Al2O3Complex phase ceramic particle and rich chromium cast iron volume ratio are less than 1:1.
The present invention also provides the wear-resisting ZrO2-Al2O3Complex phase ceramic particle is in preparation ZrO2-Al2O3Complex phase ceramic particle
Reinforcement enhance steel alloy based wear resistant composite material application, as preferably use gravity casting method and steel alloy it is compound,
ZrO2-Al2O3Complex phase ceramic particle and steel alloy volume ratio are less than 1:1.
The present invention also provides the wear-resisting ZrO2-Al2O3Complex phase ceramic particle is in preparation ZrO2-Al2O3Complex phase ceramic particle
Reinforcement enhances the application of spheroidal graphite cast-iron based wear resistant composite material, multiple as the method and spheroidal graphite cast-iron for preferably using gravity casting
It closes, ZrO2-Al2O3Complex phase ceramic particle and spheroidal graphite cast-iron volume ratio are less than 1:1.
The invention difference from existing technology is that the present invention achieves following technical effect:
The present invention is using electric smelting is melted, water cooling prepares rough surface, certain particle size size ZrO2-Al2O3Complex phase ceramic particle,
High production efficiency, performance are stablized；ZrO2-Al2O3Complex phase ceramic particle is thermally treated and controls cooling velocity convenient for ZrO2-Al2O3
Complex phase ceramic particle obtains more tetragonal phases, improves ZrO2-Al2O3Complex phase ceramic particle toughness.Therefore melted by electric smelting, water
Rough surface, certain particle size size, the ceramic particle with high-wearing feature can be obtained simultaneously in hot and cold processing and control cooling velocity
ZrO applied to steel-based composite material reinforcement2-Al2O3Complex phase ceramic particle.
In conclusion being had the advantages that using ceramic particle prepared by the present invention
1, complex phase ceramic reinforcement fracture toughness >=6J/cm2, hardness > HV1300；
2, good as reinforcing material and rich chromium cast iron, steel alloy, spheroidal graphite cast-iron mixed binding, composite-material abrasive
It is 3-6 times that it corresponds to matrix.
The present invention will be further explained below with reference to the attached drawings.
Detailed description of the invention
Fig. 1 is ZrO prepared by the embodiment of the present invention 12-Al2O3Complex phase ceramic particle；
Fig. 2 is ZrO prepared by the embodiment of the present invention 12-Al2O3Complex phase ceramic particle X diffraction pattern；
Fig. 3 is that the embodiment of the present invention 1 prepares ZrO2-Al2O3The micro- photograph of complex phase ceramic particle enhanced steel iron base composite material
Piece.
Specific embodiment
With reference to embodiments, the forgoing and additional technical features and advantages are described in more detail.
Embodiment 1
By ZrO2-Al2O3Complex phase ceramic weight percent 75% stablizes ZrO2(stablize ZrO2In contain its mass percent 4%
MgO2) and 25%Al2O3Raw material is put into electric furnace and melts by component requirements, and 2010 DEG C of melting temperature；By the ZrO of melting2-
Al2O3Melt pours into the chute with slope, while ceramic particle is made in water flowing cooling, and ceramic particle process is made in water flowing cooling
Middle water consumption weight percent is ZrO2-Al2O311 times of melt, sieving, obtain the shaggy complex phase ceramic of 1mm
Grain；The complex phase ceramic particle of 1mm is put into electric furnace and is heated, 50 DEG C/h of heating rate is warming up to 1210 DEG C, 1.5 hours are kept the temperature,
80 DEG C/h of cooling velocity is cooled to 530 DEG C of air-cooled, fracture toughness 8.7J/cm that come out of the stove2, hardness HV1310.Fig. 1 is the present embodiment
The ZrO of 1 preparation2-Al2O3Complex phase ceramic particle；Fig. 2 is ZrO prepared by the present embodiment 12-Al2O3Complex phase ceramic particle X diffraction
Figure；
By ZrO obtained2-Al2O3Complex phase ceramic particle by the method for gravity casting and rich chromium cast iron (ceramic particle with
Rich chromium cast iron volume ratio closes good wear resistant composite material micro- photograph as shown in Figure 3 for the compound obtained rich chromium cast iron base junction of 1:1)
Piece, composite material wear resistence are 5 times of rich chromium cast iron matrix.
Embodiment 2
By ZrO2-Al2O3Complex phase ceramic weight percent 45% stablizes ZrO2(stablize ZrO2In contain its mass percent
4.5% TiO2) and 55%Al2O3Raw material is put into electric furnace and melts by component requirements, and 2030 DEG C of melting temperature；By melting
ZrO2-Al2O3Melt pours into the chute with slope, while ceramic particle is made in water flowing cooling, and ceramic particle is made in water flowing cooling
Water consumption weight percent is ZrO in the process2-Al2O312 times of melt, sieving, obtain the shaggy complex phase ceramic of 3mm
Particle；The complex phase ceramic particle of 3mm is put into electric furnace and is heated, 54 DEG C/h of heating rate is warming up to 1230 DEG C, and heat preservation 1.5 is small
When, 85 DEG C/h of cooling velocity is cooled to 550 DEG C of air-cooled, fracture toughness 7.1J/cm that come out of the stove2, hardness HV1380.It will be obtained
ZrO2-Al2O3The method and potassium steel that complex phase ceramic particle passes through gravity casting (ceramic particle is 1:1 with potassium steel volume ratio)
The wear resistant composite material that compound obtained high-manganese steel-base is well combined, composite material wear resistence are 4 times of potassium steel matrix.
Embodiment 3
By ZrO2-Al2O3Complex phase ceramic weight percent 15% stablizes ZrO2(stablize ZrO2In contain its mass percent
Y2O3) and 85%Al2O3Raw material is put into electric furnace and melts by component requirements, and 2050 DEG C of melting temperature；ZrO will be melted2-Al2O3It is molten
Body pours into the chute with slope, while ceramic particle is made in water flowing cooling, and the cooling ceramic particle that is made of water flowing uses water in the process
Amount weight percent is ZrO2-Al2O313 times of melt, sieving, obtain the shaggy complex phase ceramic particle of 5mm；By 5mm
Complex phase ceramic particle be put into electric furnace and heat, 58 DEG C/h of heating rate is warming up to 1250 DEG C, keeps the temperature 1.5 hours, cooling velocity
90 DEG C/h, it is cooled to 570 DEG C of air-cooled, fracture toughness 6.2J/cm that come out of the stove2, hardness HV1470.By ZrO obtained2-Al2O3Complex phase
Ceramic particle is compound obtained by the method and spheroidal graphite cast-iron (ceramic particle is 1:2 with spheroidal graphite cast-iron volume ratio) of gravity casting
The nodular cast iron-based wear resistant composite material being well combined, composite material wear resistence are 4.5 times of spheroidal graphite cast-iron matrix.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (7)
1. a kind of wear-resisting ZrO2-Al2O3Complex phase ceramic particle, it is characterised in that its composition by weight percent composition are as follows: 10-90%
Stabilization ZrO2And the Al of 10-90%2O3；
Wherein stable ZrO2Comprising being selected from MgO, TiO2、Y2O3One or more of arbitrary proportion mixing stabilizer, institute
Stabiliser content is stated no more than ZrO2The 5% of weight；
The ZrO2-Al2O3Complex phase ceramic particle is the shaggy complex phase ceramic particle of 0.5-7mm partial size；
Preparation method includes the following steps:
(1), according to ZrO2-Al2O3Complex phase ceramic particulate component requires that ZrO will be stablized2And Al2O3Powder is put into electric furnace and melts,
The stable ZrO2And Al2O3Powder dosage weight percent is respectively to stablize ZrO210-90% and Al2O310-90%；
(2), ZrO will be melted2-Al2O3Melt pours into the chute with slope, while ceramic particle is made in water flowing cooling, is sieved,
Obtain the shaggy complex phase ceramic particle of 0.5-7mm；
(3), complex phase ceramic particle made from step (2) is subjected to heat treatment and air-cooled step；The heat treatment and air-cooled packet
Include following steps:
The complex phase ceramic particle of 0.5-7mm is put into electric furnace and is heated to 1200-1300 DEG C, 1-2 hours is kept the temperature, is cooled to
500-600 DEG C come out of the stove it is air-cooled；By the complex phase ceramic particle of 0.5-7mm be put into 60 DEG C of the heating rate < of heat temperature raising in electric furnace/
H, 100 DEG C/h of cooling velocity < after heat preservation.
2. a kind of prepare wear-resisting ZrO as described in claim 12-Al2O3The method of complex phase ceramic particle, it is characterised in that including
Following steps:
(1) according to ZrO2-Al2O3Complex phase ceramic particulate component requires that ZrO will be stablized2And Al2O3Powder is put into electric furnace and melts, institute
State stable ZrO2And Al2O3Powder dosage weight percent is respectively to stablize ZrO210-90% and Al2O310-90%；
(2), ZrO will be melted2-Al2O3Melt pours into the chute with slope, while ceramic particle is made in water flowing cooling, is sieved,
Obtain the shaggy complex phase ceramic particle of 0.5-7mm
(3), complex phase ceramic particle made from step (2) is subjected to heat treatment and air-cooled step；The heat treatment and air-cooled packet
Include following steps:
The complex phase ceramic particle of 0.5-7mm is put into electric furnace and is heated to 1200-1300 DEG C, 1-2 hours is kept the temperature, is cooled to
500-600 DEG C come out of the stove it is air-cooled；By the complex phase ceramic particle of 0.5-7mm be put into 60 DEG C of the heating rate < of heat temperature raising in electric furnace/
H, 100 DEG C/h of cooling velocity < after heat preservation.
3. wear-resisting ZrO according to claim 22-Al2O3The method of complex phase ceramic particle, it is characterised in that: the step
(1) 2000-2100 DEG C of melting temperature in.
4. wear-resisting ZrO according to claim 22-Al2O3The method of complex phase ceramic particle, it is characterised in that: the step
(2) water consumption weight percent is no less than ZrO during ceramic particle is made in water flowing cooling in2-Al2O310 times of melt.
5. wear-resisting ZrO according to claim 12-Al2O3Complex phase ceramic particle is in preparation ZrO2-Al2O3Complex phase ceramic particle increases
The application of strong body enhancing rich chromium cast iron based wear resistant composite material, ZrO compound using the method and rich chromium cast iron of gravity casting2-
Al2O3Complex phase ceramic particle and rich chromium cast iron volume ratio are less than 1: 1.
6. wear-resisting ZrO according to claim 12-Al2O3Complex phase ceramic particle is in preparation ZrO2-Al2O3Complex phase ceramic particle increases
The application of strong body enhancing steel alloy based wear resistant composite material, ZrO compound using the method and steel alloy of gravity casting2-Al2O3It is multiple
Ceramic phase particle and steel alloy volume ratio are less than 1: 1.
7. wear-resisting ZrO according to claim 12-Al2O3Complex phase ceramic particle is in preparation ZrO2-Al2O3Complex phase ceramic particle increases
The application of strong body enhancing spheroidal graphite cast-iron based wear resistant composite material, ZrO compound using the method and spheroidal graphite cast-iron of gravity casting2-
Al2O3Complex phase ceramic particle and spheroidal graphite cast-iron volume ratio are less than 1: 1.
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| CN1620490A (en) * | 2002-02-21 | 2005-05-25 | 3M创新有限公司 | Abrasive particles containing sintered, polycrystalline zirconia |
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| CN202322873U (en) * | 2011-11-25 | 2012-07-11 | 河南科技大学 | Steel slag ball production equipment and granulating system thereof |
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