Nanosized γ-Al₂O₃ protective film for fluorescent lamps

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• 作者：Yiwei Ao ; Yunxia Yang ; Shuanglong Yuan ; Hengyao Hu ; Hongchen Gu ; Guorong Chen
• 关键词：A. Milling ; B. Nanocomposites ; D. Al₂O₃ ; E. Functional applications ; Protective film
• 刊名：Ceramics International
• 出版年：2007
• 期刊代码：13_02728842
• 类别：ms
• 出版时间：December 2007
• 卷：33
• 期：8
• 页码：1547-1550
• 文件大小：620 K

摘要

Nanosized γ-Al₂O₃ particles were prepared by the sol–gel method with aluminum ion hydrolysis control performed by nitric acid. The as-prepared particles were mixed with deionized-water and stabilizer, and cycled in a high speed sand mill to form a stable γ-Al₂O₃ suspended slurry, which was then coated on the surface of the glass substrate to form a γ-Al₂O₃ protective film. Observations of SEM and visible transmission spectra show that a well-dispersed γ-Al₂O₃ slurry could be obtained after three-cycle grinding suitable to coat fluorescent lamp glass with a dense and uniform film of visible light transmission up to 95%.