水和四チタン酸カリウムを出発物質とした層状チタン酸マグネシウムカリウムの合成

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  • Synthesis of Potassium Magnesium Titanate with Layered Crystal Structure from Hydrous Potassium Tetratitanate
  • スイワ 4 チタンサン カリウム オ シュッパツ ブッシツ ト シタ ソウジョウ チタンサン マグネシウム カリウム ノ ゴウセイ

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Potassium magnesium titanate (KMT) was synthesized in single-phase by calcination at 1000°C for 1 h from magnesium nitrate 6-hydrate and hydrous potassium tetratitanate fiber. For comparison, mixture of potassium carbonate, magnesium nitrate 6-hydrate and titanium dioxide powders was calcined, and KMT and small amount of an amorphous phase, which is found by TEM. Hydrous potassium tetratitanate fiber and magnesium nitrate 6-hydrate were heated at 1000°C for 1 h to obtain KMT short fibers containing small amount of magnesium oxide as a by-product. The fibers were 10-80 μm long and 1-3 μm in diameter. The fibers were soaked in water and their hydrate phases were found. The distance between its layers in crystal structure was different from the soaking condition.

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