| 热处理温度对蛋白石晶体的影响 |
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| 引用本文： | 段涛,彭同江,唐永建,陈吉明.热处理温度对蛋白石晶体的影响[J].强激光与粒子束,2008,20(9). |
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| 作者姓名： | 段涛 彭同江 唐永建 陈吉明 |
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| 作者单位： | 1. 西南科技大学 矿物材料及应用研究所， 四川 绵阳 621010;2. 中国工程物理研究院 激光聚变研究中心， 四川 绵阳 621900 |
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| 基金项目： | 四川省教育厅资助项目，四川省自然科学基金，西南科技大学重点科技项目，西南科技大学校科研和教改项目 |
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| 摘 要： | 采用等体积快速混合法制备了不同粒径的单分散SiO2微球，通过重力垂直沉降自组装形成了蛋白石模板，研究了热处理温度对蛋白石晶体模板形貌、结构与光学性能的影响。SEM，TG-DSC，UV-Vis等分析表明：热处理可提高组装微球的粘合性与模板的机械强度；SiO2胶体模板煅烧温度在700～800 ℃较为合适；热处理能够改变蛋白石晶体光子带隙的位置，随着煅烧温度的升高，带隙发生蓝移并且带隙逐渐变窄。
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| 关 键 词： | 蛋白石晶体 热处理 模板 SiO2微球 |
| 收稿时间： | 1900-01-01; |
Effects of heat treatment temperature on morphology and properties of opal crystal |
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| DUAN Tao,PENG Tong-jiang,TANG Yong-jian,CHEN Ji-ming.Effects of heat treatment temperature on morphology and properties of opal crystal[J].High Power Laser and Particle Beams,2008,20(9). |
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| Authors: | DUAN Tao PENG Tong-jiang TANG Yong-jian CHEN Ji-ming |
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| Institution: | 1. Institute of Mineral Materials and Applications, Southwest University of Science and Technology, Mianyang 621010, China;2. Research Center of Laser Fusion, CAEP, P.O.Box 919-987, Mianyang 621900, China |
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| Abstract: | The monodispersed SiO2 microspheres were synthesized by reactant mixed equally. The colloid crystal templates were assemblied by vertical sedimentation method in ethanol at certain temperatures, and the effects of the heat treatment temperature on the morphology and the properties of opal colloid crystals were investigated. SEM, TG-DSC results indicate SiO2 colloid templates should be heat treated at 700~800 ℃, enhancing the conglutination and mechanistic intensity of opal templates. UV-Vis analysis result indicates that the heat treatment process can remove the photonic band gap location of the opal colloid crystals, and with the heat treatment temperature increasing gradually, blue shift occurs and the gap narrows. |
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| Keywords: | Heat treatment Templates SiO2 microspheres |
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