JPH04321537A - Magnetic crystallized glass - Google Patents
Magnetic crystallized glassInfo
- Publication number
- JPH04321537A JPH04321537A JP11552891A JP11552891A JPH04321537A JP H04321537 A JPH04321537 A JP H04321537A JP 11552891 A JP11552891 A JP 11552891A JP 11552891 A JP11552891 A JP 11552891A JP H04321537 A JPH04321537 A JP H04321537A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- crystallized glass
- glass
- crystals
- flaky crystals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims abstract description 28
- 239000013078 crystal Substances 0.000 claims abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052681 coesite Inorganic materials 0.000 abstract description 6
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 6
- 239000000377 silicon dioxide Substances 0.000 abstract description 6
- 229910052682 stishovite Inorganic materials 0.000 abstract description 6
- 229910052905 tridymite Inorganic materials 0.000 abstract description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000696 magnetic material Substances 0.000 abstract description 4
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 abstract description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 239000006247 magnetic powder Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000010828 elution Methods 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 2
- 229910018967 Pt—Rh Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008395 clarifying agent Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0009—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing silica as main constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、特徴的な磁性フレーク
状結晶が均質に分散した磁性結晶化ガラスに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic crystallized glass in which characteristic magnetic flake-like crystals are uniformly dispersed.
【０００２】0002
【従来の技術】軟質、硬質の磁性材料には、いろいろな
種類のものが開発されているが、その中で広く用いられ
ているのがフェライトである。これは所望の組成になる
ように調合、混合した酸化物、炭酸塩等の原料を焼結し
て製造する、いわゆる乾式法によってつくられるのが一
般的である。2. Description of the Related Art Various types of soft and hard magnetic materials have been developed, and ferrite is widely used among them. This is generally produced by a so-called dry method, in which raw materials such as oxides and carbonates are prepared and mixed to a desired composition and then sintered.
【０００３】田代他（窯協、７２［２］，２０，（１９
６４））によりＦｅ２Ｏ３−ＭｎＯ−Ｌｉ２Ｏ−Ａｌ２
Ｏ３−ＳｉＯ２ 系でガラスと同様の方法でつくる磁性
物質の研究が行われている。[0003] Tashiro et al. (Kiln Association, 72 [2], 20, (19
64)) by Fe2O3-MnO-Li2O-Al2
Research is being carried out on O3-SiO2-based magnetic materials that can be made using the same method as glass.
【０００４】0004
【発明が解決しようとする課題】しかし、乾式法では複
雑な形状、例えば薄膜、繊維状等に成型することが難し
く、また微粒子状のものをつくることも難しい。[Problems to be Solved by the Invention] However, with the dry method, it is difficult to mold into complex shapes, such as thin films or fibers, and it is also difficult to make fine particles.
【０００５】前記のＦｅ２Ｏ３−ＭｎＯ−Ｌｉ２Ｏ−Ａ
ｌ２Ｏ３−ＳｉＯ２ 系の組成ではフレーク状の結晶化
ガラスは得られず、従ってガラス相溶出処理する事によ
って磁性フレークを作製するなどの応用が難しい。[0005] The above Fe2O3-MnO-Li2O-A
With the l2O3-SiO2 composition, flaky crystallized glass cannot be obtained, and therefore applications such as producing magnetic flakes by glass phase elution treatment are difficult.
【０００６】本発明は、上記の問題点を解決するために
なされたものであり、一般のガラス或は結晶化ガラスと
同じような製法で磁性結晶化ガラスを作製することによ
って、複雑形状、微粒子状の磁性結晶化ガラスを提供す
ることを目的とするものである。The present invention was made to solve the above-mentioned problems, and by producing magnetic crystallized glass using the same manufacturing method as general glass or crystallized glass, complex shapes and fine particles can be formed. The object of the present invention is to provide a magnetic crystallized glass having a shape.
【０００７】[0007]
【課題を解決するための手段】請求項１の磁性結晶化ガ
ラスは、重量％で表示して、３０〜５５％のＳｉＯ２、
１０〜５０％のＭｎＯ、５〜５０％のＦｅ２Ｏ３、５〜
１５％のＲ２Ｏ（Ｒ＝Ｋ，Ｎａ，Ｌｉ）、２〜１５％の
ＴｉＯ２の組成からなる溶融体を冷却した後、７００〜
１０００℃で熱処理することにより得られる、磁性フレ
ーク状結晶を含むことを特徴とする。[Means for Solving the Problems] The magnetic crystallized glass of claim 1 contains 30 to 55% SiO2, expressed in weight percent.
10-50% MnO, 5-50% Fe2O3, 5-
After cooling a melt consisting of a composition of 15% R2O (R=K, Na, Li) and 2-15% TiO2,
It is characterized by containing magnetic flake-like crystals obtained by heat treatment at 1000°C.
【０００８】本発明の磁性結晶化ガラスは、主結晶相が
特徴的なフレーク状を呈し、重量％で表示して、３０〜
５５％のＳｉＯ２、１０〜５０％のＭｎＯ、５〜５０％
のＦｅ２Ｏ３、５〜１５％のＲ２Ｏ（Ｒ＝Ｋ，Ｎａ，Ｌ
ｉ）、２〜１５％のＴｉＯ２の組成からなっている。[0008] The magnetic crystallized glass of the present invention has a characteristic flake-like main crystalline phase, and has a content of 30 to 30% by weight.
55% SiO2, 10-50% MnO, 5-50%
of Fe2O3, 5-15% of R2O (R=K, Na, L
i), with a composition of 2-15% TiO2.
【０００９】本発明の結晶化ガラスは、溶融体を冷却し
た後、７００〜１０００℃で熱処理する事によって得ら
れる。[0009] The crystallized glass of the present invention is obtained by cooling the melt and then heat-treating it at 700 to 1000°C.
【００１０】またこの結晶化ガラスを、１〜１５％のＨ
Ｆ溶液でガラス溶出処理することによって、磁性フレー
ク状結晶を得ることもできる。[0010] This crystallized glass is also treated with 1 to 15% H
Magnetic flake crystals can also be obtained by glass elution treatment with F solution.
【００１１】[0011]
【作用】以下に、本発明の結晶化ガラスの組成、熱処理
条件及び溶出条件の限定理由について説明する。[Function] The reasons for limiting the composition, heat treatment conditions and elution conditions of the crystallized glass of the present invention will be explained below.
【００１２】ＳｉＯ２：上限量より高いと、フレーク状
結晶が得られず、下限量より低いとガラス化しない。SiO2: If the amount is higher than the upper limit, flaky crystals will not be obtained, and if the amount is lower than the lower limit, no vitrification will occur.
【００１３】ＭｎＯ，Ｒ２Ｏ：上限量より高いかもしく
は下限量より低いと、フレーク状結晶が出来ない。MnO, R2O: If the amount is higher than the upper limit or lower than the lower limit, flaky crystals cannot be formed.
【００１４】Ｆｅ２Ｏ３：上限量より高いと、ガラス化
せず、下限量より低いと磁性をほとんど持たない。[0014] Fe2O3: If the amount is higher than the upper limit, it will not vitrify, and if the amount is lower than the lower limit, it will have almost no magnetism.
【００１５】ＴｉＯ２：均質に結晶化させるための核形
成剤としての働きをする。上限量より高いかもしくは下
限量より低いと均質に結晶化できない。TiO2: Functions as a nucleating agent for homogeneous crystallization. If the amount is higher than the upper limit or lower than the lower limit, homogeneous crystallization cannot be achieved.
【００１６】更に、これらの成分の他に、最終製品の性
質を損なわない範囲で、例えば清澄剤としてのＡｓ２Ｏ
３，Ｓｂ２Ｏ３等を添加することもできる。Furthermore, in addition to these components, for example, As2O as a clarifying agent may be added to the extent that the properties of the final product are not impaired.
3, Sb2O3, etc. can also be added.
【００１７】この組成物は一旦ガラス化した後、７００
〜１０００℃で熱処理する事によって結晶化物が得られ
る。[0017] Once this composition has been vitrified, it has a 700%
A crystallized product can be obtained by heat treatment at ~1000°C.
【００１８】熱処理温度が７００℃未満では、結晶化が
進まず、１０００℃を超えると変形が大きくなり好まし
くない。[0018] If the heat treatment temperature is less than 700°C, crystallization will not proceed, and if it exceeds 1000°C, deformation will increase, which is not preferable.
【００１９】又、磁性フレークを分離するためにガラス
相を溶出させる事も可能で、そのための処理剤としてＨ
Ｆ溶液を用いるとよい。ＨＦ溶液の濃度が１５％以上で
はガラス相のみならず結晶相まで溶出する割合が多く、
１％以下ではガラス相の溶出速度がかなり遅いので、１
〜１５％が好ましい。ＨＦ以外の酸、或はアルカリを用
いても、ガラス相のみを溶出してきれいに結晶分離する
ことはできない。It is also possible to elute the glass phase in order to separate the magnetic flakes, and H is used as a processing agent for this purpose.
It is better to use F solution. When the concentration of HF solution is 15% or more, not only the glass phase but also the crystal phase is eluted,
If it is less than 1%, the elution rate of the glass phase is quite slow;
~15% is preferred. Even if an acid or alkali other than HF is used, it is not possible to elute only the glass phase and separate the crystals neatly.
【００２０】[0020]
【実施例】酸化物で表わして表１に示した組成になるよ
うに調合した原料を、Ｐｔ−Ｒｈ坩堝にいれ１３００℃
で４時間溶融し、型枠に鋳込み徐冷してガラスを得た。
このガラスを５℃／分の割合で８００〜９００℃まで昇
温し、３時間保持した後徐冷して試料を得た。[Example] Raw materials prepared to have the composition shown in Table 1 expressed as oxides were placed in a Pt-Rh crucible at 1300°C.
The mixture was melted for 4 hours, poured into a mold, and slowly cooled to obtain glass. This glass was heated to 800 to 900°C at a rate of 5°C/min, held for 3 hours, and then slowly cooled to obtain a sample.
【００２１】実施例の試料中には、大きさ数μｍ、厚さ
１μｍ以下の特徴的なフレーク状の（Ｆｅ，Ｍｎ）（Ｓ
ｉ，Ｔｉ）Ｏ３結晶がランダムに晶出している。この結
晶化ガラスについて、振動試料型磁力計を用いて飽和磁
化量、保持力の測定を行なった結果を表１に示す。[0021] In the sample of the example, characteristic flaky (Fe, Mn) (S) with a size of several μm and a thickness of 1 μm or less
i, Ti)O3 crystals are randomly crystallized. Table 1 shows the results of measuring the saturation magnetization and coercive force of this crystallized glass using a vibrating sample magnetometer.
【００２２】[0022]
【発明の効果】以上のように本発明によれば、磁性をも
ったフレーク状結晶がランダムに析出した結晶化ガラス
及び磁性フレーク状結晶を得ることが出来、これらは磁
性繊維、磁性粉等の磁性材料として使用できると期待さ
れる。As described above, according to the present invention, it is possible to obtain crystallized glass and magnetic flake-like crystals in which magnetic flake-like crystals are randomly precipitated. It is expected that it can be used as a magnetic material.
Claims (1)
ｉＯ２、１０〜５０％のＭｎＯ、５〜５０％のＦｅ２Ｏ
３、５〜１５％のＲ２Ｏ（Ｒ＝Ｋ，Ｎａ，Ｌｉ）、２〜
１５％のＴｉＯ２の組成からなる溶融体を冷却した後、
７００〜１０００℃で熱処理することにより得られる、
磁性フレーク状結晶を含むことを特徴とする磁性結晶化
ガラス。Claim 1: 30 to 55% S expressed in weight%
iO2, 10-50% MnO, 5-50% Fe2O
3, 5-15% R2O (R=K, Na, Li), 2-
After cooling the melt consisting of a composition of 15% TiO2,
Obtained by heat treatment at 700-1000°C,
A magnetic crystallized glass characterized by containing magnetic flake-like crystals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11552891A JPH04321537A (en) | 1991-04-19 | 1991-04-19 | Magnetic crystallized glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11552891A JPH04321537A (en) | 1991-04-19 | 1991-04-19 | Magnetic crystallized glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04321537A true JPH04321537A (en) | 1992-11-11 |
Family
ID=14664763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11552891A Pending JPH04321537A (en) | 1991-04-19 | 1991-04-19 | Magnetic crystallized glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04321537A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001287930A (en) * | 2000-04-04 | 2001-10-16 | Ohara Inc | Magnetic crystallized glass |
| WO2014021260A1 (en) * | 2012-07-30 | 2014-02-06 | 旭硝子株式会社 | Glass particle for soft magnetic composite material, and method for producing soft magnetic composite material |
-
1991
- 1991-04-19 JP JP11552891A patent/JPH04321537A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001287930A (en) * | 2000-04-04 | 2001-10-16 | Ohara Inc | Magnetic crystallized glass |
| WO2014021260A1 (en) * | 2012-07-30 | 2014-02-06 | 旭硝子株式会社 | Glass particle for soft magnetic composite material, and method for producing soft magnetic composite material |
| JPWO2014021260A1 (en) * | 2012-07-30 | 2016-07-21 | 旭硝子株式会社 | Glass particle for soft magnetic composite and method for producing soft magnetic composite |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6332732B2 (en) | ||
| JPH0512842B2 (en) | ||
| US4773938A (en) | Finely divided isometric hexaferrite pigments with a W-structure, processes for their preparation and their use | |
| JP2759763B2 (en) | Cordierite-based crystallized glass and method for producing the same | |
| CN113089133B (en) | Magnetic basalt fiber and preparation method thereof | |
| JP4574792B2 (en) | Magnetic crystallized glass | |
| US4084973A (en) | Glass articles with hematite and/or magnetite and/or metallic iron surfaces | |
| JPS6324935B2 (en) | ||
| JPS6163530A (en) | Production of hard magnetic material | |
| JPH0616449B2 (en) | Manufacturing method of hexagonal ferrite for magnetic recording media | |
| JPS6121921A (en) | Preparation of magnetic powder | |
| DE1596977C (en) | Glass containing lithium ferrite crystals of relatively uniform size and process for making the same | |
| JPH05170450A (en) | Magnetic powder for magnetic recording medium and production therefor | |
| SU550352A1 (en) | Ferromagnetic glass | |
| JPH04310540A (en) | Crystallized glass | |
| KR950004061B1 (en) | Natural marble crystallized glass and its manufacturing method | |
| KR960001655B1 (en) | Manufacturing Method of Crystal-Ceramics Tile Using Scoria | |
| JPH0472601A (en) | Manufacture of magnetic powder for magnetic recording medium | |
| JPS60210801A (en) | Manufacture of magnetic fine particle | |
| JPH04284603A (en) | Manufacture of hexagonal-system ferrite powder for magnetic recording | |
| JPS6323133B2 (en) | ||
| JPH03108303A (en) | Magnetic powder for high-density magnetic recording | |
| JP2717720B2 (en) | Method for producing magnetic powder for magnetic recording medium | |
| JPS60161602A (en) | Manufacture of magnetic particulate | |
| JPH03193640A (en) | Crystallized glass |