JPS63156069A - Manufacture of mixed powder comprising zirconium oxide, aluminum oxide and carbide - Google Patents
Manufacture of mixed powder comprising zirconium oxide, aluminum oxide and carbideInfo
- Publication number
- JPS63156069A JPS63156069A JP61304195A JP30419586A JPS63156069A JP S63156069 A JPS63156069 A JP S63156069A JP 61304195 A JP61304195 A JP 61304195A JP 30419586 A JP30419586 A JP 30419586A JP S63156069 A JPS63156069 A JP S63156069A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- oxide
- zirconium
- carbide
- aluminum
- 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
- 239000011812 mixed powder Substances 0.000 title claims description 21
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 title claims description 18
- 229910001928 zirconium oxide Inorganic materials 0.000 title claims description 18
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-UHFFFAOYSA-N 0.000 title claims description 7
- 239000000843 powder Substances 0.000 claims description 17
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 229910000484 niobium oxide Inorganic materials 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 claims 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims 1
- 239000002245 particle Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 8
- 239000007858 starting material Substances 0.000 description 8
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 4
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- 229910026551 ZrC Inorganic materials 0.000 description 1
- OTCHGXYCWNXDOA-UHFFFAOYSA-N [C].[Zr] Chemical compound [C].[Zr] OTCHGXYCWNXDOA-UHFFFAOYSA-N 0.000 description 1
- HVXCTUSYKCFNMG-UHFFFAOYSA-N aluminum oxygen(2-) zirconium(4+) Chemical compound [O-2].[Zr+4].[Al+3] HVXCTUSYKCFNMG-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- GQUJEMVIKWQAEH-UHFFFAOYSA-N titanium(III) oxide Chemical compound O=[Ti]O[Ti]=O GQUJEMVIKWQAEH-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Carbon And Carbon Compounds (AREA)
- Ceramic Products (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、超硬工具や高温構造材用の原料として用いら
れる酸化ジルコニウムと酸化アルミニウムと炭化物とよ
りなる混合粉末の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for producing a mixed powder of zirconium oxide, aluminum oxide, and carbide, which is used as a raw material for cemented carbide tools and high-temperature structural materials.
従来の技術
従来、酸化ジルコニウム−酸化アルミニウムー炭化物複
合焼結体用の混合粉末は、まず金属またはその酸化物に
炭素粉末または固形炭素を混合し、高温で反応させるこ
とによって合成した炭化物粉末と酸化ジルコニウム粉末
、酸化アルミニウム粉末を十分に混合することによって
製造してぃた。Conventional technology Conventionally, mixed powder for zirconium oxide-aluminum oxide-carbide composite sintered bodies has been produced by first mixing carbon powder or solid carbon with a metal or its oxide, and reacting it at high temperature to synthesize carbide powder and oxidation. It was manufactured by thoroughly mixing zirconium powder and aluminum oxide powder.
発明が解決しようとする問題点
この方法は、製造工程が長く複雑であるため不純物が混
入しやす＜、シかもエネルギー消費が非常に大きかうた
。Problems to be Solved by the Invention This method requires a long and complicated manufacturing process, which makes it easy for impurities to be mixed in and consumes a lot of energy.
問題点を解決するための手段
本発明の特徴は、ジルコニウム金属粉末（反応後には酸
化ジルコニウムとなる）と、アルミニウム金属粉末（反
応後には酸化アルミニウムとなる）と、酸化物粉末（反
応後には炭化物になる）と、炭素とからなる混合物の成
形体の一部を強熱点火して燃焼反応を起こさせ、この化
学反応によって炭化物と酸化ジルコニウム、酸化アルミ
ニウムの粒子を合成することにある。Means for Solving the Problems The present invention is characterized by the following: zirconium metal powder (becomes zirconium oxide after reaction), aluminum metal powder (becomes aluminum oxide after reaction), and oxide powder (becomes carbide after reaction). The method involves igniting a part of a compact of a mixture of carbon and carbon to cause a combustion reaction, and through this chemical reaction, carbide, zirconium oxide, and aluminum oxide particles are synthesized.
作用
本発明によれば、成形体に点火するだけで高純度の酸化
ジルコニウムと酸化アルミニウムと炭化物とよりなる混
合粉末が容易に得られる。したがって従来の炭化物と酸
化ジルコニウムと酸化アルミニウムの粉末を用いて作製
する混合粉末の製造方法と比較してきわめて省エネルギ
ーであり、しかも得られる粉体もきわめて高純度である
。According to the present invention, a mixed powder of high-purity zirconium oxide, aluminum oxide, and carbide can be easily obtained by simply igniting a compact. Therefore, compared to the conventional manufacturing method of a mixed powder using carbide, zirconium oxide, and aluminum oxide powders, this method is extremely energy-saving, and the resulting powder is also extremely high in purity.
実施例
実施例１
出発原料として粒径１０μｍ以下のジルコニウム粉末、
粒径１θμＩ以下のアルミニウム粉末、平均粒径１μ慣
の二酸化チタン（ＴｉＯ２）粉末、それにアセチレンを
原料とするカーボンブラックを用い、それらを０．２
＋ １．６ ： １．４ ： １．２６のモル比で混合
した。そしてその混合粉体を直径２０ｍｍ 、高さ２〇
−１の柱状にプレス成形した。成形体への着火は、試料
上部に設けたタングステンフィラメントに通電すること
によって行った。成形体を室温・真空（１ｍｍＨｇ）雰
囲気下で、着火用ヒーターに通電して反応を開始させた
。得られた多孔体をボールミルを用いて粉砕した後、Ｘ
線回折で同定したところ、炭化チタンと酸化ジルコニウ
ム、酸化アルミニウムの回折線しか見られなかった。得
られた混合粉末の粒径は、それぞれ０．１〜０．２μｍ
であり、出発原料の粒径よりも小さくなっていた。Examples Example 1 Zirconium powder with a particle size of 10 μm or less as a starting material,
Using aluminum powder with a particle size of 1θμI or less, titanium dioxide (TiO2) powder with an average particle size of 1μI, and carbon black made from acetylene,
+1.6:1.4:1.26 molar ratio. Then, the mixed powder was press-molded into a column having a diameter of 20 mm and a height of 20-1. The molded body was ignited by energizing a tungsten filament provided above the sample. The molded body was placed at room temperature under a vacuum (1 mmHg) atmosphere, and the ignition heater was energized to start the reaction. After pulverizing the obtained porous body using a ball mill,
When identified by line diffraction, only the diffraction lines of titanium carbide, zirconium oxide, and aluminum oxide were observed. The particle size of the obtained mixed powder is 0.1 to 0.2 μm, respectively.
The particle size was smaller than that of the starting material.
このプロセスの化学反応式は以下のようになる。The chemical reaction equation for this process is as follows.
０．２Ｚｒ＋１．６ＡＩ＋１．４ＴｉＯ２＋１．２６Ｃ
Ｏ，２ＺｒＯ２＋０．８ＡＩ ２０３＋１．４Ｔｉｃｏ
、９この化学反応式かられかるようにこの反応は、Ｚｒ
金属及びＡＩ金金属よるＴｉＯ２の還元を基本にして、
還元されたＴｉ金属（融解して液体になっているものと
思われる）が、Ｃと反応してＴｉＣになるものである。0.2Zr+1.6AI+1.4TiO2+1.26C
O,2ZrO2+0.8AI 203+1.4Tico
, 9 As can be seen from this chemical reaction equation, this reaction
Based on the reduction of TiO2 by metal and AI gold metal,
The reduced Ti metal (presumably melted into liquid) reacts with C to become TiC.
このときの反応熱が大きいので外部から加熱しなくても
試料が高温（２０００℃程度まで上昇する）になりＺｒ
Ｏ２、Ａｌ ２０３とＴｉＣからなる混合粉末が得られ
る。Since the heat of reaction at this time is large, the sample reaches a high temperature (up to about 2000°C) even without external heating, and the Zr
A mixed powder consisting of O2, Al 203 and TiC is obtained.
実施例２
出発原料として、粒径１０μ薄以下のジルコニウム粉末
、粒径１０μｍ以下のアルミニウム粉末、平均粒径１μ
−の五酸化ニオブ（Ｎｂ２０ｓ）およびアセチレンを原
料とするカーボンブラックを用い、それらを０．４ ：
１．２ ： ０．５２ ： １のモル比で混合後、実
施例１と同様のプロセスで処理した。得られた混合粉末
をＸ線回折を用いて同定したところ炭化ニオブ、酸化ジ
ルコニウム、酸化アルミニウムの回折線しか見られなか
った。得られた混合粉末の粒径は、それぞれ０．１〜０
．２μｍであり、出発原料の粒径よりも小さくなってい
た。Example 2 As starting materials, zirconium powder with a particle size of 10 μm or less, aluminum powder with a particle size of 10 μm or less, and an average particle size of 1 μm.
- Using carbon black made from niobium pentoxide (Nb20s) and acetylene, they were mixed at 0.4:
After mixing at a molar ratio of 1.2:0.52:1, the same process as in Example 1 was performed. When the obtained mixed powder was identified using X-ray diffraction, only the diffraction lines of niobium carbide, zirconium oxide, and aluminum oxide were observed. The particle size of the obtained mixed powder is 0.1 to 0.
．． The particle size was 2 μm, which was smaller than the particle size of the starting material.
実施例３
出発原料として、粒径３２５メツシユ以下のイツトリウ
ムを５ｍｏ１％含有したジルコニウム粉末、粒径ｌＯμ
国以下のアルミニウム粉末、平均粒径１μｍの五酸化ニ
オブ（Ｎｂ２０ｓ ）およびアセチレンを原料とするカ
ーボンブラックを用い、本実施例ではさらに平均粒径０
．５μｍのイツトリウムで安定化した酸化ジルコニウム
粉末を加えた。それらを０．２ ： １．６ ： ０．
５５９ ： １．１１Ｂのモル比で混合後、実施例１と
同様のプロセスで処理した。得られた混合粉末をＸ線回
折を用いて同定したところ炭化ニオブ、酸化ジルコニウ
ム、酸化アルミニウムの回折線しか見られなかった。得
られた混合粉末の粒径は、それぞれ０．１〜０．３μｍ
であり、出発原料の粒径よりも小さくなっていた。Example 3 As a starting material, zirconium powder containing 5 mo1% of yttrium with a particle size of 325 mesh or less, a particle size of lOμ
Carbon black made from aluminum powder, niobium pentoxide (Nb20s) with an average particle size of 1 μm, and acetylene was used as raw materials, and in this example, the average particle size was 0.
．． 5 μm of yttrium stabilized zirconium oxide powder was added. They are 0.2: 1.6: 0.
After mixing at a molar ratio of 559:1.11B, the same process as in Example 1 was performed. When the obtained mixed powder was identified using X-ray diffraction, only the diffraction lines of niobium carbide, zirconium oxide, and aluminum oxide were observed. The particle size of the obtained mixed powder is 0.1 to 0.3 μm, respectively.
The particle size was smaller than that of the starting material.
実施例４
出発原料として粒径１０μ層以下のジルコニウム粉末、
粒径１０μ−以下のアルミニウム粉末、平均粒径３μ曽
の三酸化二チタン（Ｔｉ２０ｓ）およびアセチレンを原
料とするカーボンブラックを用い、それらを０．６ ：
０．８ ： ０．８ ： １．４４のモル比で１昆合
後、実施例１と同様のプロセスで処理した。得られた混
合粉末をＸ線回折を用いて同定したところ炭化チタンと
酸化ジルコニウムの回折線しか見られなかった。得られ
た混合粉末の粒径は、それぞれ０．３〜０．５μｍであ
り、出発原料の粒径よりも小さくなっていた。Example 4 Zirconium powder with a particle size of 10 μm or less as a starting material,
Using aluminum powder with a particle size of 10μ or less, dititanium trioxide (Ti20s) with an average particle size of 3μ, and carbon black made from acetylene,
After mixing at a molar ratio of 0.8:0.8:1.44, the same process as in Example 1 was carried out. When the obtained mixed powder was identified using X-ray diffraction, only the diffraction lines of titanium carbide and zirconium oxide were observed. The particle size of the obtained mixed powder was 0.3 to 0.5 μm, which was smaller than the particle size of the starting raw material.
発明の効果
本発明の製造方法によれば、ジルコニウム粉末と、アル
ミニウム粉末と、酸化物と、炭素とからなる混合物の成
形体の一部に点火して燃焼反応を起こさせるだけで勤化
ジルコニウムと酸化アルミニウム、炭化物からなる混合
粉末が作製できる。Effects of the Invention According to the manufacturing method of the present invention, zirconium carbide can be produced by simply igniting a part of the molded body of a mixture of zirconium powder, aluminum powder, oxide, and carbon to cause a combustion reaction. A mixed powder consisting of aluminum oxide and carbide can be produced.
従って、本発明の製造方法によれば、従来の炭化物粉末
に酸化ジルコニウムと酸化アルミニウムを混合する製造
方法に比較してはるかに低温のプロセスで、つまり、き
わめて小さなエネルギーで、酸化ジルコニウムと、酸化
アルミニウムと炭化物の混合粉末が作製できる。また、
得られる混合粉末は純度が高く、その粒径はいずれも０
．１−０．３μＭの範囲で分布していて、出発原料の粒
径よりも小さくなっている。したがって焼結体作製の原
料粉末として非常に遺したものである。Therefore, according to the manufacturing method of the present invention, zirconium oxide and aluminum oxide can be mixed in a much lower temperature process, that is, with extremely small energy, compared to the conventional manufacturing method of mixing zirconium oxide and aluminum oxide with carbide powder. A mixed powder of carbide and carbide can be prepared. Also,
The resulting mixed powder has high purity, and its particle size is 0.
．． It is distributed in the range of 1-0.3 μM, which is smaller than the particle size of the starting material. Therefore, it is very important as a raw material powder for producing sintered bodies.
Claims (4)
末および炭素からなる成形体の一部に点火して燃焼過程
を開始させ、その後のジルコニウム粉末とアルミニウム
粉末、酸化物粉末および炭素の反応を、燃焼過程の結果
発生する熱によって進行させる酸化ジルコニウムと酸化
アルミニウムと炭化物とよりなる混合粉末の製造方法。(1) A part of the compact made of zirconium powder, aluminum powder, oxide powder, and carbon is ignited to start the combustion process, and the subsequent reaction between the zirconium powder, aluminum powder, oxide powder, and carbon is controlled by the combustion process. A method for producing a mixed powder consisting of zirconium oxide, aluminum oxide, and carbide, which is progressed by heat generated as a result of.
粉末、酸化物粉末および炭素からなる成形体に点火して
燃焼過程を開始させることを特徴とする特許請求の範囲
第１項記載の酸化ジルコニウムと酸化アルミニウムと炭
化物とよりなる混合粉末の製造方法。(2) Zirconium oxide and oxidation according to claim 1, characterized in that a compact made of zirconium powder, aluminum powder, oxide powder, and carbon is ignited under heating conditions to start a combustion process. A method for producing a mixed powder consisting of aluminum and carbide.
ずれかである特許請求の範囲第１項記載の酸化ジルコニ
ウムと酸化アルミニウムと炭化物とよりなる混合粉末の
製造方法。(3) The method for producing a mixed powder of zirconium oxide, aluminum oxide, and carbide according to claim 1, wherein the oxide powder is either titanium oxide or niobium oxide.
粉末、あるいは酸化物粉末を混合する特許請求の範囲第
１項記載の酸化ジルコニウムと酸化アルミニウムと炭化
物とよりなる混合粉末の製造方法。(4) A method for producing a mixed powder of zirconium oxide, aluminum oxide, and carbide according to claim 1, wherein a metal powder of a stabilizing element of zirconium oxide or an oxide powder is mixed in the compact.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61304195A JPS63156069A (en) | 1986-12-19 | 1986-12-19 | Manufacture of mixed powder comprising zirconium oxide, aluminum oxide and carbide |
| US07/041,810 US4902457A (en) | 1986-04-07 | 1987-04-07 | Method for manufacturing a porous material or a composite sintered product comprising zirconium oxide and a carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61304195A JPS63156069A (en) | 1986-12-19 | 1986-12-19 | Manufacture of mixed powder comprising zirconium oxide, aluminum oxide and carbide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63156069A true JPS63156069A (en) | 1988-06-29 |
Family
ID=17930162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61304195A Pending JPS63156069A (en) | 1986-04-07 | 1986-12-19 | Manufacture of mixed powder comprising zirconium oxide, aluminum oxide and carbide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63156069A (en) |
-
1986
- 1986-12-19 JP JP61304195A patent/JPS63156069A/en active Pending
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