フッ化チタン (IV) カリウムからの窒化チタンウイスカーの合成

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タイトル別名
  • Synthesis of Titanium Nitride Whiskers from Potassium Fluorotitanate (IV)
  • フッカ チタン 4 カリウム カラ ノ チッカ チタン ウイスカー ノ ゴウセ

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Titanium nitride (TiN) whiskers was formed by heating of potassium fluorotitanate (IV) (K2TiF6) above 1300°C on the outer surface of graphite tube in a stream of nitrogen. It was assumed that one of the important process about the formation of TiN whisker and coating was the reaction of titanium fluorides and potassium fluoride, which were formed by thermal decomposing of potassium fluotitanate (III), with alumina tube. The shape and microstructure of the whiskers were observed by SEM and TEM. The main cross-sections of whiskers were square and regular hexagon, It was suggested that the whiskers having a square cross-section grew by layer growth mechanism on {111} tip faces of whiskers in the axial direction and on {110} lateral faces of them in the radial direction, respectively.

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