摘要
以用酸钠为原料,乙二醇为溶剂,用溶胶-凝胶法制备MoO3薄膜通过对干凝胶粉做DTA和TG分析,用SEM和XRD分析还胶膜、热处理后氧化物膜及多次重复浸涂热处理薄膜的显微结构和晶相组成,研究了氧化物薄膜的形成过程.重复4次浸涂热处理可得到约2μm厚连续致密的、主晶相为择优取向的斜方MoO3薄膜.
MoO3 ceramic film was prepared through a sol-gel process by using ammounium paramolybdate as a starting material and ethylene glycol as a dissolvent. TG-DTA analysis of a xerogel was done. Microstructures and crystal compositions of a gel film and oxide films were studied by SEM and XRD.The oxide films were either obtained by one-time heat-treatment or by multi-time dip and heat-treatment.The dense and continuous MoO3 film with thickness of about 2μm was prepared by 4-time dipping and heat-treating. Main crystalline phase of the film was orthorhombic MoO3 with preferred orientation.
出处
《材料研究学报》
EI
CAS
CSCD
1996年第2期195-198,共4页
Chinese Journal of Materials Research
基金
美国福特-中国研究与发展基金
关键词
溶胶-凝胶法
薄膜
三氧化钼
sol-gel process
ammounium paramolybdate
ethylene glycol
dip coating
M_oO_3film