JPS63139049A - Zirconia ceramics - Google Patents
Zirconia ceramicsInfo
- Publication number
- JPS63139049A JPS63139049A JP61285598A JP28559886A JPS63139049A JP S63139049 A JPS63139049 A JP S63139049A JP 61285598 A JP61285598 A JP 61285598A JP 28559886 A JP28559886 A JP 28559886A JP S63139049 A JPS63139049 A JP S63139049A
- Authority
- JP
- Japan
- Prior art keywords
- zirconia ceramics
- mol
- zirconia
- oxide
- present
- 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
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 title claims description 44
- 239000000919 ceramic Substances 0.000 title claims description 21
- 239000013078 crystal Substances 0.000 claims description 13
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 7
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 7
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 7
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 description 6
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 description 5
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910003437 indium oxide Inorganic materials 0.000 description 3
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- OBOSXEWFRARQPU-UHFFFAOYSA-N 2-n,2-n-dimethylpyridine-2,5-diamine Chemical compound CN(C)C1=CC=C(N)C=N1 OBOSXEWFRARQPU-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002075 main ingredient Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- BQLKDRKXLYBIQR-UHFFFAOYSA-N 1h-indol-1-ium;hydroxide Chemical compound O.C1=CC=C2NC=CC2=C1 BQLKDRKXLYBIQR-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 238000007088 Archimedes method Methods 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910006213 ZrOCl2 Inorganic materials 0.000 description 1
- RFNWHNKWWHCSGS-UHFFFAOYSA-N [O-2].[Y+3].[O-2].[Ce+3] Chemical compound [O-2].[Y+3].[O-2].[Ce+3] RFNWHNKWWHCSGS-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003966 growth inhibitor Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910002077 partially stabilized zirconia Inorganic materials 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- IPCAPQRVQMIMAN-UHFFFAOYSA-L zirconyl chloride Chemical compound Cl[Zr](Cl)=O IPCAPQRVQMIMAN-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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〉
本発明は高強度、高硬度、高靭性ジルコニア質セラミッ
クスに関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to high strength, high hardness, and high toughness zirconia ceramics.
更に詳細には安定化剤としてＣｅ Ｏｔと少量のＹ ｚ
Ｏ３を使用した高強度、高硬度かつ高靭性のジルコニ
ア質セラミックスに関するものである。More specifically, CeOt and a small amount of Yz are used as stabilizers.
This invention relates to high strength, high hardness, and high toughness zirconia ceramics using O3.
〈従来技術〉
従来より、ＺｒＯ，の安定化剤としてＣｅｎｔを用いる
ことはよく知られている。<Prior Art> It has been well known that Cent is used as a stabilizer for ZrO.
例えばＺｒＯ，に対してＣｅ０１を２０モル％以上含有
する場合には正方晶及び立方晶よりなるジルコニア質セ
ラミックスを得ることができ、ＣｅＯ，を１６〜２０モ
ル％含有する場合には正方晶よりなる完全安定化ジルコ
ニア質セラミックスを得ることができ、１６モル％未満
の場合には常温で単斜晶のみよりなる非安定化ジルコニ
ア質セラミックスを得ることができるが、〔例えばジャ
ーナル オン マテリアルズサイエンス（Ｊｏｕｒｎａ
ｌ ｏｆ Ｍａｔｅｒｉａｌｓ ５ｃｉｅｎｃｅ
）１７ （１９８２）第２５６頁 第１図参照〕いずれ
の場合にも靭性は高いものの、機械的強度や硬度が充分
でなくＹｔＯｓ等に比較してＣｅＯ，が廉価であるにも
かかわらず、高い機械的強度の要求される機械部品用材
料としては注目されることがなかった。For example, when containing 20 mol% or more of CeO1 with respect to ZrO, zirconia ceramics consisting of tetragonal and cubic crystals can be obtained, and when containing 16 to 20 mol% of CeO, zirconia ceramics consisting of tetragonal crystals can be obtained. Completely stabilized zirconia ceramics can be obtained, and if the content is less than 16 mol%, unstabilized zirconia ceramics consisting only of monoclinic crystals can be obtained at room temperature.
l of Materials 5science
) 17 (1982) p. 256 (see Figure 1) In either case, although the toughness is high, the mechanical strength and hardness are insufficient, and although CeO is cheaper than YtOs etc., it is expensive. It has not received much attention as a material for mechanical parts that require mechanical strength.
またＺｒＯ□の安定剤としてＹ、Ｏ，を２〜６モル％含
有した部分安定化ジルコニア質セラミックスは、高強度
ではあるが靭性がＣｅｎｔに比較して低く、またＹ ｚ
Ｏｘ自体高価なものであるため、コスト的にも不利で
あった。In addition, partially stabilized zirconia ceramics containing 2 to 6 mol% of Y and O as stabilizers for ZrO□ have high strength but lower toughness than Cent.
Since Ox itself is expensive, it is also disadvantageous in terms of cost.
〈発明が解決しようとする問題点〉
かかる事情下に鑑み本発明者らはＹｔＯｓよりも廉価な
ＣｅＯ，を主体として用い機械的強度や硬度、更には靭
性に優れたジルコニア質セラミックスを得るべく鋭意検
討した結果、酸化セリウムと酸化インドリウムを特定割
合で併用する場合には上記物性を満足し得る焼結体が得
られることを見出し本発明を完成するに至った。<Problems to be Solved by the Invention> In view of the above circumstances, the present inventors have made efforts to obtain zirconia ceramics with excellent mechanical strength, hardness, and toughness using CeO, which is cheaper than YtOs, as a main ingredient. As a result of investigation, it was found that a sintered body satisfying the above physical properties can be obtained when cerium oxide and indium oxide are used together in a specific ratio, and the present invention has been completed.
〈発明を解決するための手段〉
すなわち、本発明は酸化セリウム７〜１０モル％、酸化
インドリウムＯ，１〜０．５モル％を含有してなるジル
コニアセラミックスを提供するにある。<Means for Solving the Invention> That is, the present invention provides a zirconia ceramic containing 7 to 10 mol% of cerium oxide and 1 to 0.5 mol% of indium oxide O.
以下、本発明を更に詳細に説明する。The present invention will be explained in more detail below.
本発明のジルコニアセラミックスは酸化セリウム約７〜
約１０モル％、好ましくは約８〜約９モル％、酸化イツ
トリウム約０．１〜約０．５モル％、好ましくは約０．
１５〜約０．４５モル％で残部が主として酸化ジルコニ
ウムより構成される。The zirconia ceramics of the present invention contain about 7 to 70% cerium oxide.
about 10 mole %, preferably about 8 to about 9 mole %, about 0.1 to about 0.5 mole % yttrium oxide, preferably about 0.
15 to about 0.45 mole percent, with the balance primarily comprised of zirconium oxide.
ジルコニアセラミックス中に占める酸化セリウムの量が
約７モル％未満の場合には機械的強度や破壊靭性が低下
し好ましくなく、他方１０モル％を越える場合には破壊
靭性は優れるものの硬度が低下し好ましくない。If the amount of cerium oxide in the zirconia ceramic is less than about 7 mol%, the mechanical strength and fracture toughness will decrease, which is undesirable.On the other hand, if it exceeds 10 mol%, the fracture toughness will be excellent, but the hardness will decrease, which is not preferable. do not have.
また、酸化イツトリウムの量が約０．１モル％未満の場
合には機械的強度及び硬度の改良効果が少なく、他方０
．５モル％を越える場合には破壊靭性が著しく低下する
ので好ましくない。Furthermore, when the amount of yttrium oxide is less than about 0.1 mol%, the effect of improving mechanical strength and hardness is small;
．． If it exceeds 5 mol %, the fracture toughness will drop significantly, which is not preferable.
本発明のジルコニアセラミックスの製造方法は通常公知
の方法であればよく特に制限されるものではないが、例
えば共沈法により得た酸化セリウム含有酸化ジルコニウ
ムや酸化インドリウム含有酸化ジルコニウムを別個に或
は所望の酸化セリウム−酸化イツトリウムを含有する酸
化ジルコニウムとなる如く上記酸化インドリウム含有酸
化ジルコニウムと酸化セリウム含有酸化ジルコニウムを
混合した後、約８００〜約１２００℃の温度で１焼、粉
砕（解砕）、篩別して平均粒径が約１μｍ以下、好まし
くは約０．５μｍ以下に調整した後、また別個に焼成し
たものは所望割合で混合した後、この粉末を金型成形、
ラバープレス、押出成形、射出成形等の公知の成形方法
により成形し、次いで加熱炉中にて約１３５０〜約１６
５０℃の温度まで徐々に昇温し、その後更に１時間〜５
時間保持焼成すればよい。The method for producing the zirconia ceramics of the present invention is not particularly limited as long as it is a generally known method. After mixing the above-mentioned indium oxide-containing zirconium oxide and cerium oxide-containing zirconium oxide to obtain the desired zirconium oxide containing cerium oxide-yttrium oxide, the mixture is fired and pulverized (crushed) at a temperature of about 800 to about 1200°C. After sieving and adjusting the average particle size to about 1 μm or less, preferably about 0.5 μm or less, and after separately calcining and mixing in the desired ratio, this powder is molded into a mold,
It is molded by a known molding method such as rubber press, extrusion molding, injection molding, etc., and then in a heating furnace to a temperature of about 1,350 to about 16
Gradually raise the temperature to 50℃, then continue for an additional 1 to 5 hours.
All you need to do is hold and fire for a certain amount of time.
このようにして得られたジルコニアセラミックスは平均
結晶粒子が約１μｍ以下、その結晶組織の約８０重量％
以上、通常は約９０重量％以上は正方晶構造であり、残
部は単斜晶より構成される。The zirconia ceramic thus obtained has an average crystal grain of about 1 μm or less, and about 80% by weight of its crystal structure.
As mentioned above, usually about 90% by weight or more has a tetragonal crystal structure, and the remainder is composed of a monoclinic crystal structure.
平均結晶粒子が約１μｍ以上を越える場合には単斜晶が
増加して機械的強度が低下する。When the average crystal grain size exceeds about 1 μm or more, monoclinic crystals increase and mechanical strength decreases.
通常酸化イツトリウムを３モル％以上安定化剤として含
有する正方晶結晶構造を有する酸化ジルコニウム焼結体
は雰囲気温度１００〜３００℃で正方晶から単斜晶に自
発転移して熱安定性が低下するが、本発明のジルコニア
質セラミックスは１００〜３００℃で１０００時間放置
しても正方晶から単斜晶への変態は見られず、熱安定性
に優れると伴に、硬度並びに靭性に優れるものであり、
切断・切削工具、押出・線引ダイス、エンジン部品、ベ
アリング用ボール、ボールペン用ボール、メカニカルシ
ール、ノズル、ピストン等の機械構造材として極めて有
用である。Normally, sintered zirconium oxide with a tetragonal crystal structure containing 3 mol% or more of yttrium oxide as a stabilizer undergoes a spontaneous transition from tetragonal to monoclinic at an ambient temperature of 100 to 300°C, resulting in a decrease in thermal stability. However, the zirconia ceramic of the present invention shows no transformation from tetragonal to monoclinic even after being left at 100 to 300°C for 1000 hours, and has excellent thermal stability as well as hardness and toughness. can be,
It is extremely useful as a mechanical structural material for cutting/cutting tools, extrusion/drawing dies, engine parts, bearing balls, ballpoint pen balls, mechanical seals, nozzles, pistons, etc.
尚、本発明のジルコニアセラミックスの製造法に於いて
使用する原料としてはジルコニア粉末と安定化剤のみに
ついて記載したが、これはあくまで主成分であって、ほ
かに本発明の効果を損ねない範囲でシリカ、アルミナ、
チタニア、カオリン、ムライト等の当該分野において公
知の焼結促進剤、粒成長抑制剤等を使用する事は勿論可
能である。Although only the zirconia powder and the stabilizer have been described as the raw materials used in the method for producing zirconia ceramics of the present invention, these are just the main ingredients, and other materials may be used as long as they do not impair the effects of the present invention. silica, alumina,
It is of course possible to use sintering accelerators, grain growth inhibitors, etc. known in the art, such as titania, kaolin, and mullite.
〈発明の効果〉
本発明は安定化剤として高価な酸化イツトリウムの使用
量を減少し、廉価な酸化セリウムと特定量割合で併用す
ることにより機械的強度は勿論の事、硬度並びに靭性に
優れたジルコニア質セラミックスの提供を可能としたも
のであり、その工業的価値は頗る大なるものである。<Effects of the Invention> The present invention reduces the amount of expensive yttrium oxide used as a stabilizer and uses it in combination with inexpensive cerium oxide in a specific amount, resulting in excellent mechanical strength, hardness, and toughness. This made it possible to provide zirconia ceramics, and its industrial value is extremely great.
〈実施例〉
以下実施例により本発明を更に詳細に説明するが、該実
施例は本発明を限定するものではない。<Examples> The present invention will be explained in more detail with reference to Examples below, but these Examples are not intended to limit the present invention.
実施例ｌ
ＺｒＯＣｌ２ ・８Ｈｚ○をアンモニア水で析出させた
析出水和物をｆ過後、硝酸セリウムと塩化イツトリウム
を焼成後の組成が第１表に示すＣｅ０ｔ Ｙ＊Ｏｓ
ＺｒＣｈとなるように硝酸セリウム、塩化イツトリウ
ムを添加し十分攪拌混合し、アンモニアを添加しセリウ
ム、インドリウム水和物を含有するジルコニア水和物と
して共沈させた。Example 1 ZrOCl2 ・8Hz○ was precipitated with aqueous ammonia, the precipitated hydrate was filtered, and the composition after firing cerium nitrate and yttrium chloride was Ce0t Y*Os as shown in Table 1.
Cerium nitrate and yttrium chloride were added to form ZrCh and thoroughly stirred and mixed, and ammonia was added to co-precipitate zirconia hydrate containing cerium and indolium hydrate.
次いでこの水和物をｌ過、乾燥、解砕後１０００℃２時
間暇焼し第１表に示す原料組成のジルコニア質粉末を得
た。Next, this hydrate was filtered, dried, crushed, and baked at 1000° C. for 2 hours to obtain zirconia powder having the raw material composition shown in Table 1.
このようにして得られた粉末を振動ミルで平均粒子径０
．５μｍまで粉砕し、１５０℃で乾燥した後ラバープレ
ス（ＩＴ／ａｍ”）により３５ｘ５Ｘ５ｍｍに成形し電
気炉にて１５５０℃の温度で２時間焼成した。The powder thus obtained was milled with an average particle size of 0 in a vibration mill.
．． The powder was crushed to 5 μm, dried at 150° C., formed into 35×5×5 mm using a rubber press (IT/am”), and fired in an electric furnace at 1550° C. for 2 hours.
得られたジルコニア質セラミックスの物性を第１表に併
せ示す。The physical properties of the obtained zirconia ceramics are also shown in Table 1.
尚、実施例において焼結密度はアルキメデス法、結晶構
造はＸ線回折法、破壊靭性及び硬度は、Ｅｖａｎｓらに
より提案されたＶ、 Ｉ （Ｖｉｃｋｅｒｓ Ｉ
ｄｓｎｔａｔｉｏｎ）法（測定条件を荷重３０ｋｇｘ１
５ｓｅｃ、ヤング率Ｅ＝１．８６Ｘ１０ＩＳＭＮ／ｍ”
）曲げ強度は３点曲げ試験法（スパン長３０ｍｍ、荷重
印加速度０．５ｍｍ／分）によって測定した。In the Examples, the sintered density was determined by the Archimedes method, the crystal structure was determined by the X-ray diffraction method, and the fracture toughness and hardness were determined by the V and I proposed by Evans et al.
dsntation) method (measurement conditions: load 30kg x 1
5sec, Young's modulus E=1.86X10ISMN/m"
) The bending strength was measured by a three-point bending test method (span length 30 mm, load application acceleration 0.5 mm/min).
Claims (2)
０．１〜０．５モル％を含有してなるジルコニアセラミ
ックス。(1) Zirconia ceramics containing 7 to 10 mol% of cerium oxide and 0.1 to 0.5 mol% of yttrium oxide.
粒子の８０重量％以上が正方晶、残部が単斜晶であり、
その平均結晶粒子が１μｍ以下であることを特徴とする
特許請求の範囲第１項記載のジルコニアセラミックス。(2) 80% by weight or more of the crystal grains constituting the zirconia ceramic at room temperature are tetragonal, and the remainder are monoclinic;
The zirconia ceramic according to claim 1, wherein the average crystal grain is 1 μm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61285598A JPS63139049A (en) | 1986-11-28 | 1986-11-28 | Zirconia ceramics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61285598A JPS63139049A (en) | 1986-11-28 | 1986-11-28 | Zirconia ceramics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63139049A true JPS63139049A (en) | 1988-06-10 |
Family
ID=17693616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61285598A Pending JPS63139049A (en) | 1986-11-28 | 1986-11-28 | Zirconia ceramics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63139049A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1508554A2 (en) | 2003-08-22 | 2005-02-23 | Matsushita Electric Works, Ltd. | ZrO2-Al2O3 composite ceramic material |
| JP2005097094A (en) * | 2003-08-22 | 2005-04-14 | Matsushita Electric Works Ltd | Zirconia-alumina composite ceramic material |
| EP3521263A4 (en) * | 2016-09-30 | 2020-05-27 | Kyushu University, National University Corporation | Cerium-oxide-stabilized zirconium-oxide-based composition, and method for producing same |
-
1986
- 1986-11-28 JP JP61285598A patent/JPS63139049A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1508554A2 (en) | 2003-08-22 | 2005-02-23 | Matsushita Electric Works, Ltd. | ZrO2-Al2O3 composite ceramic material |
| JP2005097094A (en) * | 2003-08-22 | 2005-04-14 | Matsushita Electric Works Ltd | Zirconia-alumina composite ceramic material |
| EP1508554A3 (en) * | 2003-08-22 | 2008-01-23 | Matsushita Electric Works, Ltd. | ZrO2-Al2O3 composite ceramic material |
| JP4701654B2 (en) * | 2003-08-22 | 2011-06-15 | パナソニック電工株式会社 | Zirconia-alumina composite ceramic material |
| EP3521263A4 (en) * | 2016-09-30 | 2020-05-27 | Kyushu University, National University Corporation | Cerium-oxide-stabilized zirconium-oxide-based composition, and method for producing same |
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