졸-겔 법에 의한 구형 미분체 Barium Titanate의 제조

• 영문명: Synthesis of Barium Titanate Spherical Particles by Sol-Gel Method
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 김용렬(Kim YongRyul)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제24권 제3호, 246~252쪽, 전체 7쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2007.09.30

영문 초록

BaTiO3 powders were prepared by sol-gel method from different concentration of KOH aqueous solution and Ba/Ti molar ratio. Particle shape, size and crystal structure of prepared BaTiO3 powders were analyzed by SEM, XRD, and FT-IR. As the result of KOH concentration changing, spherical particles were obtained by condition more than 3 M and particle size decreased as concentration increasing. Different appearance showed between dried and sintered powders against changing of Ba/Ti molar ratio. In case of dried powders, the crystallinity decreased as molar ratio increasing. On the other hand, increased as molar ratio increasing in case of sintered powders.

키워드

BaTiO3 Sol Gel Ba Ti molar ratio