A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BARIUM TITANATE FINE PARTICLE AND DISPERSANT THEREOF
PROBLEM TO BE SOLVED: To provide a barium titanate fine particle good in crystallinity as a dielectric material and dispersibility to a dispersant even though it is a fine particle.SOLUTION: The barium titanate fine particle is a fine particle mainly containing barium titanate and having average particle diameter based on an electron microscope observation of 30 nm to 200 nm, an organic material in at least a part of a surface of a core particle practically consisting of barium titanate, lattice constant ratio of axis c to axis a of barium titanate crystallite in the core particle, c/a of 1.003 or more, wherein absorbance peaks are observed near wave number of 1450 cmand near 1650 cmrespectively in spectrum obtained by FTIR analysis and intensity of the absorbance peak near 1450 cm, Iis higher than intensity of the absorbance peak near 1650 cm, I.SELECTED DRAWING: Figure 1
【課題】 微細な粉末でありながら、誘電体材料としての結晶性および分散媒への分散性が良好なチタン酸バリウム微粒子を提供する。【解決手段】本発明が提供するチタン酸バリウム微粒子は、チタン酸バリウムを主体とする微粒子であって、電子顕微鏡観察に基づく平均粒子径が３０ｎｍ以上２００ｎｍ以下で、実質的にチタン酸バリウムからなるコア粒子の表面の少なくとも一部に有機物を備え、コア粒子におけるチタン酸バリウム結晶子のａ軸とｃ軸との格子定数比ｃ／ａが１．００３以上であって、ＦＴＩＲ分析により得られるスペクトルにおいて、波数１４５０ｃｍ-1近傍と１６５０ｃｍ-1近傍とにそれぞれ吸収ピークが観測され、１４５０ｃｍ-1近傍の吸収ピークの強度Ｉ1450が、１６５０ｃｍ-1近傍の吸収ピークの強度Ｉ1650よりも高いことを特徴としている。【選択図】図１
BARIUM TITANATE FINE PARTICLE AND DISPERSANT THEREOF
PROBLEM TO BE SOLVED: To provide a barium titanate fine particle good in crystallinity as a dielectric material and dispersibility to a dispersant even though it is a fine particle.SOLUTION: The barium titanate fine particle is a fine particle mainly containing barium titanate and having average particle diameter based on an electron microscope observation of 30 nm to 200 nm, an organic material in at least a part of a surface of a core particle practically consisting of barium titanate, lattice constant ratio of axis c to axis a of barium titanate crystallite in the core particle, c/a of 1.003 or more, wherein absorbance peaks are observed near wave number of 1450 cmand near 1650 cmrespectively in spectrum obtained by FTIR analysis and intensity of the absorbance peak near 1450 cm, Iis higher than intensity of the absorbance peak near 1650 cm, I.SELECTED DRAWING: Figure 1
【課題】 微細な粉末でありながら、誘電体材料としての結晶性および分散媒への分散性が良好なチタン酸バリウム微粒子を提供する。【解決手段】本発明が提供するチタン酸バリウム微粒子は、チタン酸バリウムを主体とする微粒子であって、電子顕微鏡観察に基づく平均粒子径が３０ｎｍ以上２００ｎｍ以下で、実質的にチタン酸バリウムからなるコア粒子の表面の少なくとも一部に有機物を備え、コア粒子におけるチタン酸バリウム結晶子のａ軸とｃ軸との格子定数比ｃ／ａが１．００３以上であって、ＦＴＩＲ分析により得られるスペクトルにおいて、波数１４５０ｃｍ-1近傍と１６５０ｃｍ-1近傍とにそれぞれ吸収ピークが観測され、１４５０ｃｍ-1近傍の吸収ピークの強度Ｉ1450が、１６５０ｃｍ-1近傍の吸収ピークの強度Ｉ1650よりも高いことを特徴としている。【選択図】図１
BARIUM TITANATE FINE PARTICLE AND DISPERSANT THEREOF
チタン酸バリウム微粒子とその分散体
INUKAI HIROYUKI (author) / SHIN USOKU (author) / RI KINKI (author) / YOBITA EMI (author) / AKAMATSU TAKAFUMI (author) / ITO TOSHIO (author)
2017-04-13
Patent
Electronic Resource
Japanese
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