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OALib Journal期刊
ISSN: 2333-9721
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利用冲击波技术制备tio2纳米晶
Keywords: 无机非金属材料,二氧化钛,溶胶-凝胶,冲击波
Abstract:
？以钛酸丁脂为原料,将溶胶-凝胶法与冲击波加载手段结合能制备出粒度均匀、晶粒小于50nm的纳米tio2.冲击波作用的瞬时性能有效地抑制晶粒的生长.冲击压力对粉体的晶粒度有一定影响,冲击压力增大将导致冲击温度升高,过高的冲击温度会造成晶粒长大.为了获得尺寸细小的纳米晶粒粉体,应在保证凝胶分解的前提下,降低冲击压力.
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