JPWO2018021492A1 - カラーセラミックス - Google Patents
カラーセラミックス Download PDFInfo
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- JPWO2018021492A1 JPWO2018021492A1 JP2018530398A JP2018530398A JPWO2018021492A1 JP WO2018021492 A1 JPWO2018021492 A1 JP WO2018021492A1 JP 2018530398 A JP2018530398 A JP 2018530398A JP 2018530398 A JP2018530398 A JP 2018530398A JP WO2018021492 A1 JPWO2018021492 A1 JP WO2018021492A1
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- 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
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract
Description
Claims (6)
- 安定化剤を含むジルコニアの含有量が85質量%以上であり、アルミナの含有量が1質量%以上4質量%以下であり、クロムの含有量が酸化物換算で0.7質量%以上3質量%以下であり、コバルトの含有量が酸化物換算で0.1質量%以上0.5質量%以下であり、ジルコニア結晶と、アルミナ結晶に前記クロムが固溶した第1結晶とを含有するカラーセラミックス。
- 隣り合う前記第1結晶は、重心間距離の平均値が1.8μm以上4.5μm以下である請求項1に記載のカラーセラミックス。
- 前記ジルコニア結晶にチタンが固溶した第2結晶を含有し、前記チタンの酸化物換算での含有量が1質量%以上4質量%以下である請求項1または請求項2に記載のカラーセラミックス。
- 円相当径で1μm以上の粒径を有する前記ジルコニア結晶の個数の割合が15%以上38%以下である請求項1乃至請求項3のいずれかに記載のカラーセラミックス。
- 前記第1結晶の平均結晶粒径Dは、0.4μm以上0.8μm以下である請求項1乃至請求項4のいずれかに記載のカラーセラミックス。
- 前記第1結晶の結晶粒径の標準偏差Dσと前記第1結晶の平均結晶粒径Dとの比Dσ/Dは、0.7以下である請求項1乃至請求項5のいずれかに記載のカラーセラミックス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016148603 | 2016-07-28 | ||
JP2016148603 | 2016-07-28 | ||
PCT/JP2017/027301 WO2018021492A1 (ja) | 2016-07-28 | 2017-07-27 | カラーセラミックス |
Publications (2)
Publication Number | Publication Date |
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JPWO2018021492A1 true JPWO2018021492A1 (ja) | 2019-06-13 |
JP6646153B2 JP6646153B2 (ja) | 2020-02-14 |
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ID=61017483
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JP2018530398A Active JP6646153B2 (ja) | 2016-07-28 | 2017-07-27 | カラーセラミックス |
Country Status (3)
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EP (1) | EP3476816B1 (ja) |
JP (1) | JP6646153B2 (ja) |
WO (1) | WO2018021492A1 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59174574A (ja) * | 1983-03-25 | 1984-10-03 | ティーディーケイ株式会社 | 高強度、耐摩耗性セラミツクス材料及びその製造方法 |
JPS63185855A (ja) * | 1987-01-28 | 1988-08-01 | 日本セメント株式会社 | 黒色装飾材料の製造方法 |
JPH1081562A (ja) * | 1996-09-02 | 1998-03-31 | Sumitomo Electric Ind Ltd | 黒色ジルコニア焼結体およびその製造方法 |
JP2004059374A (ja) * | 2002-07-29 | 2004-02-26 | Matsushita Electric Works Ltd | 着色ジルコニア系複合セラミック焼結体及びその製造方法 |
WO2009119495A1 (ja) * | 2008-03-24 | 2009-10-01 | 京セラ株式会社 | 装飾部品用セラミックス |
WO2010024275A1 (ja) * | 2008-08-28 | 2010-03-04 | 京セラ株式会社 | 濃青色系セラミックスおよび装飾部品 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4960070B2 (ja) | 2006-11-28 | 2012-06-27 | 京セラ株式会社 | 黒色セラミックスおよびこれを用いた時計用装飾部品ならびにその黒色セラミックスの製造方法 |
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2017
- 2017-07-27 JP JP2018530398A patent/JP6646153B2/ja active Active
- 2017-07-27 WO PCT/JP2017/027301 patent/WO2018021492A1/ja unknown
- 2017-07-27 EP EP17834494.1A patent/EP3476816B1/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59174574A (ja) * | 1983-03-25 | 1984-10-03 | ティーディーケイ株式会社 | 高強度、耐摩耗性セラミツクス材料及びその製造方法 |
JPS63185855A (ja) * | 1987-01-28 | 1988-08-01 | 日本セメント株式会社 | 黒色装飾材料の製造方法 |
JPH1081562A (ja) * | 1996-09-02 | 1998-03-31 | Sumitomo Electric Ind Ltd | 黒色ジルコニア焼結体およびその製造方法 |
JP2004059374A (ja) * | 2002-07-29 | 2004-02-26 | Matsushita Electric Works Ltd | 着色ジルコニア系複合セラミック焼結体及びその製造方法 |
WO2009119495A1 (ja) * | 2008-03-24 | 2009-10-01 | 京セラ株式会社 | 装飾部品用セラミックス |
WO2010024275A1 (ja) * | 2008-08-28 | 2010-03-04 | 京セラ株式会社 | 濃青色系セラミックスおよび装飾部品 |
Also Published As
Publication number | Publication date |
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EP3476816A4 (en) | 2019-05-01 |
EP3476816A1 (en) | 2019-05-01 |
WO2018021492A1 (ja) | 2018-02-01 |
JP6646153B2 (ja) | 2020-02-14 |
EP3476816B1 (en) | 2020-04-22 |
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