A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CERAMIC BODY, HONEYCOMB STRUCTURE, MANUFACTURING METHOD OF CERAMIC BODY, AND HEATER ELEMENT
To provide a ceramic body having a low room temperature resistivity and a resistivity at 200°C being 500 times or more of a resistivity at room temperature.SOLUTION: A ceramic body contains as a main component a BaTiO3-based crystal grain having a part of Ba being substituted by a rare earth element and an alkaline earth metal element. This ceramic body includes 1.0-8.0 mass% of a Ba6Ti17O40 crystal grain. Moreover, BaTiO3-based crystal grain has a substitution amount of an alkaline earth metal element being 0.01-0.10 mole per 1 mole of Ba.SELECTED DRAWING: None
【課題】室温抵抗率が低く且つ２００℃抵抗率が室温抵抗率の５００倍以上であるセラミックス体を提供する。【解決手段】Ｂａの一部が希土類元素及びアルカリ土類金属元素で置換されたＢａＴｉＯ3系結晶粒子を主成分とするセラミックス体である。このセラミックス体は、Ｂａ6Ｔｉ17Ｏ40結晶粒子を１．０～８．０質量％含む。また、ＢａＴｉＯ3系結晶粒子は、１モルのＢａのうちのアルカリ土類金属元素の置換量が０．０１～０．１０モルである。【選択図】なし
CERAMIC BODY, HONEYCOMB STRUCTURE, MANUFACTURING METHOD OF CERAMIC BODY, AND HEATER ELEMENT
To provide a ceramic body having a low room temperature resistivity and a resistivity at 200°C being 500 times or more of a resistivity at room temperature.SOLUTION: A ceramic body contains as a main component a BaTiO3-based crystal grain having a part of Ba being substituted by a rare earth element and an alkaline earth metal element. This ceramic body includes 1.0-8.0 mass% of a Ba6Ti17O40 crystal grain. Moreover, BaTiO3-based crystal grain has a substitution amount of an alkaline earth metal element being 0.01-0.10 mole per 1 mole of Ba.SELECTED DRAWING: None
【課題】室温抵抗率が低く且つ２００℃抵抗率が室温抵抗率の５００倍以上であるセラミックス体を提供する。【解決手段】Ｂａの一部が希土類元素及びアルカリ土類金属元素で置換されたＢａＴｉＯ3系結晶粒子を主成分とするセラミックス体である。このセラミックス体は、Ｂａ6Ｔｉ17Ｏ40結晶粒子を１．０～８．０質量％含む。また、ＢａＴｉＯ3系結晶粒子は、１モルのＢａのうちのアルカリ土類金属元素の置換量が０．０１～０．１０モルである。【選択図】なし
CERAMIC BODY, HONEYCOMB STRUCTURE, MANUFACTURING METHOD OF CERAMIC BODY, AND HEATER ELEMENT
セラミックス体、ハニカム構造体、セラミックス体の製造方法、及びヒーターエレメント
HAYASE TORU (author) / YAMAGUCHI HIROFUMI (author)
2023-10-05
Patent
Electronic Resource
Japanese
CERAMIC BODY, HONEYCOMB STRUCTURE, METHOD FOR PRODUCING CERAMIC BODY AND HEATER ELEMENT
| European Patent Office | 2023
Method of manufacturing ceramic sintered body, ceramic sintered body, and ceramic heater
| European Patent Office | 2019