| 摘要 |
PROBLEM TO BE SOLVED: To provide a calcium titanate composite polycrystalline fiber useful as a filler or the like for a resin composition, a ceramic composition or the like and having excellent strength, heat resistance, wear resistance or the like, and to provide a method of manufacturing the same. SOLUTION: The composite polycrystalline fiber is composed of a calcium titanate crystal grains and a titania crystal grains and is a plate like polycrystalline fiber having an (average fiber length)/(average fiber width) ratio of 3 to 7. The incorporation ratio (molar ratio) of the titania crystal in the composite polycrystalline fiber is preferably 0.01 to 0.40. The composite polycrystalline fiber is manufactured by using a mixture of TiO<SB>2</SB>and K<SB>2</SB>O of a prescribed mixing ratio as a starting raw material, carrying out steps of the heat melting, cooling solidification, and acid treatment of the solidified material to obtain a plate like hydrated titanate fiber, mixing the fiber with a prescribed quantity of CaO and a flux component and firing the mixture. The bonding of the calcium titanate crystals and the titania crystals deposited and produced by the firing reaction is very strong. The plate like shape and size of the fiber are controlled with the fibrous form of the hydrated titanate fiber. COPYRIGHT: (C)2004,JPO&NCIPI
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