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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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掺钒tio2纳米粉体的制备及性能
Keywords: 氧化法,掺钒二氧化钛,纳米材料,相变
Abstract:
？以ticl3为源物质,通过添加强氧化剂,用溶胶-凝胶法制备掺杂v{+5}的tio2纳米粉末.研究了该材料的结构、晶粒尺寸和分散性在不同掺钒量和烧结时间(400℃)条件下的变化规律.结果表明,v{+5}在tio2中形成替位式掺杂,使锐钛矿相结构产生微应力,不仅促进其向金红石相转变,而且使大晶粒扭曲畸变形成小晶粒.
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