수열합성 법에 의한 $BaTiO_3$ 분말제조 및 방전 플라즈마 소결

Characterization of Hydrothermally Synthesized $BaTiO_3$ Powder and Spark Plasma Sintering(SPS)

  • 이정수 (한양대학교 금속재료공학과) ;
  • 이완재 (한양대학교 금속재료공학과)
  • 발행 : 2001.03.01

초록

$BaTiO_3$ fine powder was synthesized by hydrothermal process from the mixture of titania-hydroxide($TiO_2{\cdot}xH_2O$) and barium hexa-hydroxide ($Ba(OH)_2{\cdot}8H_2O$) as starting materials. Fine powder(< 100 nm) was made under the reaction conditions of 18$0^{\circ}C$,10 atm, 1.5 hr in autoclave and showed cubic structure. The powders were sintered by a spark plasma sintering technique from 1050~115$0^{\circ}C$ for 5 min. The grains of sample sintered at 110$0^{\circ}C$ were about 0.9${\mu}m$ in average size and showed the mixture of cubic and tetragonal structures.

키워드

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