POWDER CONTAINING SPHERICAL BARIUM TITANATE COMPOSITE PARTICLES, METHOD FOR PRODUCING THE SAME, AND FILLER FOR SEALING MATERIAL
To provide a simple method for producing a barium titanate powder with a small amount of dissolved ionic impurities.SOLUTION: A method for producing a powder containing spherical barium titanate composite particles includes a step a of forming spherical barium titanate composite particles by injecti...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a simple method for producing a barium titanate powder with a small amount of dissolved ionic impurities.SOLUTION: A method for producing a powder containing spherical barium titanate composite particles includes a step a of forming spherical barium titanate composite particles by injecting a raw material composition containing barium titanate raw material particles and metal oxide particles containing at least one kind selected from the group consisting of SiO2 and Al2O3 into a high temperature field heated above a melting start temperature of the barium titanate raw material particles and the metal oxide particles.SELECTED DRAWING: None
【課題】イオン性不純物の溶出量が少ないチタン酸バリウム質粉体の簡便な製造方法を提供すること。【解決手段】球状のチタン酸バリウム質複合粒子を含む粉体の製造方法であって、チタン酸バリウム質原料粒子と、ＳｉＯ２及びＡｌ２Ｏ３からなる群より選択される少なくとも一種を含む金属酸化物粒子と、を含有する原料組成物を、チタン酸バリウム質原料粒子及び金属酸化物粒子の溶融開始温度以上に加熱された高温場に噴射することで、球状のチタン酸バリウム質複合粒子を形成する工程ａを含む、粉体の製造方法。【選択図】なし |
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