JPWO2020022425A1 - アルミナ質磁器およびセラミックヒータ - Google Patents
アルミナ質磁器およびセラミックヒータ Download PDFInfo
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Abstract
Description
Claims (7)
- アルミナ結晶粒子と、ジルコニア結晶粒子と、Ti、MgおよびSiと、を含み、
前記Ti、前記Mgおよび前記Siの合計の含有量が、前記TiをTiO2として換算し、前記MgをMgOとして換算し、前記SiをSiO2として換算したときに1.4質量%以上であり、
前記ジルコニア結晶粒子は、該ジルコニア結晶粒子を構成するジルコニアをZrO2と表したときに、該ZrO2に対する希土類元素の含有量が酸化物換算で2mol%以下であり、最大長さが1μm以上の単独粒子および最大長さが1μm以上の凝集粒子の少なくとも一方を含み、
最大長さが1μm以上の前記単独粒子および最大長さが1μm以上の前記凝集粒子の比率の合計が、前記ジルコニア結晶粒子全体の50体積%以上である、アルミナ質磁器。 - Ca、Ba、Sr、Zn、MnおよびCeの合計の含有量が、前記CaをCaOとして換算し、前記BaをBaOとして換算し、前記SrをSrOとして換算し、前記MnをMnOとして換算し、前記CeをCe2O3として換算したときに、300ppm以下である、請求項1に記載のアルミナ質磁器。
- 前記希土類元素が、Yである、請求項1または2に記載のアルミナ質磁器。
- 前記ジルコニア結晶粒子に含まれる単斜晶の比率が、25%以下である、請求項1〜3のいずれかに記載のアルミナ質磁器。
- 室温における3点曲げ強度が800MPa以上である、請求項1〜4のいずれかに記載のアルミナ質磁器。
- 800℃における3点曲げ強度が600MPa以上である、請求項1〜5のいずれかに記載のアルミナ質磁器。
- 発熱体と、該発熱体を被覆する絶縁性磁器と、を備え、該絶縁性磁器が請求項1〜6のいずれかに記載のアルミナ質磁器である、セラミックヒータ。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018141505 | 2018-07-27 | ||
| JP2018141505 | 2018-07-27 | ||
| PCT/JP2019/029205 WO2020022425A1 (ja) | 2018-07-27 | 2019-07-25 | アルミナ質磁器およびセラミックヒータ |
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| Publication Number | Publication Date |
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| JPWO2020022425A1 true JPWO2020022425A1 (ja) | 2021-08-12 |
| JP7148613B2 JP7148613B2 (ja) | 2022-10-05 |
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| Country | Link |
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| US (1) | US20210284578A1 (ja) |
| EP (1) | EP3831796A4 (ja) |
| JP (1) | JP7148613B2 (ja) |
| CN (1) | CN112739661A (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7148167B2 (en) * | 2003-08-28 | 2006-12-12 | Kyocera Corporation | Alumina/zirconia ceramics and method of producing the same |
| JP4721635B2 (ja) * | 2003-10-30 | 2011-07-13 | 京セラ株式会社 | 生体部材及びそれを用いた人工関節並びに生体部材の製造方法 |
| US7169723B2 (en) * | 2003-11-12 | 2007-01-30 | Federal-Mogul World Wide, Inc. | Ceramic with improved high temperature electrical properties for use as a spark plug insulator |
| CN100522870C (zh) * | 2005-01-27 | 2009-08-05 | 京瓷株式会社 | 复合陶瓷及其制法 |
| US8207077B2 (en) * | 2007-10-29 | 2012-06-26 | Kyocera Corporation | Abrasion-resistant sintered body, sliding member, and pump |
| KR101335866B1 (ko) * | 2011-07-19 | 2013-12-02 | 니뽄 도쿠슈 도교 가부시키가이샤 | 소결체 및 절삭 공구 |
| EP2744870B1 (en) * | 2011-08-16 | 2017-11-22 | Nitto Denko Corporation | Phosphor compositions and methods of making the same |
| US8679995B1 (en) * | 2012-07-25 | 2014-03-25 | Superior Technical Ceramics Corporation | Addition of magnesium oxide to zirconia toughened alumina |
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2019
- 2019-07-25 WO PCT/JP2019/029205 patent/WO2020022425A1/ja not_active Ceased
- 2019-07-25 EP EP19840020.2A patent/EP3831796A4/en not_active Withdrawn
- 2019-07-25 JP JP2020532463A patent/JP7148613B2/ja active Active
- 2019-07-25 US US17/262,472 patent/US20210284578A1/en not_active Abandoned
- 2019-07-25 CN CN201980062131.3A patent/CN112739661A/zh active Pending
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| JPH03223157A (ja) * | 1990-01-25 | 1991-10-02 | Ngk Spark Plug Co Ltd | アルミナ焼結基板 |
| JP2001019537A (ja) * | 1999-06-30 | 2001-01-23 | Ngk Spark Plug Co Ltd | エッジ付きセラミック部材 |
| JP2005075659A (ja) * | 2003-08-28 | 2005-03-24 | Kyocera Corp | セラミックス焼結体とその製法および生体用材料 |
| JP2006122634A (ja) * | 2003-12-25 | 2006-05-18 | Kyocera Corp | 生体部材およびそれを用いた人工関節ならびに生体部材の製造方法 |
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| JP2007269524A (ja) * | 2006-03-30 | 2007-10-18 | Kyocera Corp | 絶縁セラミックとそれを用いたセラミックヒータおよびヒータ一体型素子。 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112739661A (zh) | 2021-04-30 |
| WO2020022425A1 (ja) | 2020-01-30 |
| EP3831796A1 (en) | 2021-06-09 |
| EP3831796A4 (en) | 2022-04-20 |
| JP7148613B2 (ja) | 2022-10-05 |
| US20210284578A1 (en) | 2021-09-16 |
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