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Perovskite-type ceramic molded body and method for producing same
The present invention is a method for producing a compact perovskite-type ceramic molded body that contains an alkaline earth metal element, at least one element selected from the group consisting of Ti, Zr and Hf, and oxygen, and that has a relative density of 60% or more. The production method comprises a contact reaction step in which a precursor molded body, which individually contains a gel that contains water and an oxide that contains at least one element selected from among Ti, Zr and Hf, is brought into contact with a liquid that contains a hydroxide of an alkaline earth metal element. The obtained molded body is formed by connecting a plurality of crystal domains (2) formed by an aggregate of perovskite-type ceramic crystals (1).
本发明为一种包含碱土金属元素、选自Ti、Zr和Hf中的至少1种元素以及氧、且具有60％以上的相对密度的致密质的钙钛矿型陶瓷成型体的制造方法，所述制造方法具备如下的接触反应工序：使单独包含含有选自Ti、Zr和Hf中的至少1种的氧化物以及水的凝胶的前体成型体、和包含碱土金属元素的氢氧化物的液体接触。得到的成型体是钙钛矿型陶瓷晶体(1)的集合体形成晶畴(2)、该晶畴(2)多个连接而成的。
Perovskite-type ceramic molded body and method for producing same
The present invention is a method for producing a compact perovskite-type ceramic molded body that contains an alkaline earth metal element, at least one element selected from the group consisting of Ti, Zr and Hf, and oxygen, and that has a relative density of 60% or more. The production method comprises a contact reaction step in which a precursor molded body, which individually contains a gel that contains water and an oxide that contains at least one element selected from among Ti, Zr and Hf, is brought into contact with a liquid that contains a hydroxide of an alkaline earth metal element. The obtained molded body is formed by connecting a plurality of crystal domains (2) formed by an aggregate of perovskite-type ceramic crystals (1).
本发明为一种包含碱土金属元素、选自Ti、Zr和Hf中的至少1种元素以及氧、且具有60％以上的相对密度的致密质的钙钛矿型陶瓷成型体的制造方法，所述制造方法具备如下的接触反应工序：使单独包含含有选自Ti、Zr和Hf中的至少1种的氧化物以及水的凝胶的前体成型体、和包含碱土金属元素的氢氧化物的液体接触。得到的成型体是钙钛矿型陶瓷晶体(1)的集合体形成晶畴(2)、该晶畴(2)多个连接而成的。
Perovskite-type ceramic molded body and method for producing same
钙钛矿型陶瓷成型体和其制造方法
YAMAGUCHI YUKI (author) / SHIMADA HIROYUKI (author) / NOMURA KATSUHIRO (author) / SHIN WOO-SUK (author) / MIZUTANI YASUNOBU (author) / SUMI HIROSHI (author)
2024-04-12
Patent
Electronic Resource
Chinese
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