| LiNbO_3晶体在凝胶玻璃中的受控析晶研究 |
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| 引用本文： | 张栋杰,张良莹,姚熹. LiNbO_3晶体在凝胶玻璃中的受控析晶研究[J]. 材料科学与工程学报, 1999, 0(1) |
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| 作者姓名： | 张栋杰 张良莹 姚熹 |
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| 作者单位： | 西安交通大学 |
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| 摘 要： | 采用Ｓｏｌ－ｇｅｌ工艺，以Ｎｂ（ＯＨ）５为铌酸盐的起始原料，低温合成了ＬｉＮｂＯ３／ＳｉＯ２凝胶玻璃。通过ＤＴＡ、ＸＲＤ和ＩＲ分析方法，研究了ＬｉＮｂＯ３晶体在凝胶玻璃中的析晶过程和析晶动力学。结果表明，ＬｉＮｂＯ３微晶在凝胶玻璃中的析晶过程是受界面控制的，其析晶活化能为１４２ＫＪ／ｍｏｌ。
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| 关 键 词： | 凝胶玻璃，LiNbO3晶体，控制析晶 |
Study on Controlled Crystallization of LiNbO 3 Crystal in Gel Glass |
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| Zhang Dongjie Zhang Liangying Yao Xi Xi'an Jiaotong University,Xi'an. Study on Controlled Crystallization of LiNbO 3 Crystal in Gel Glass[J]. Journal of Materials Science and Engineering, 1999, 0(1) |
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| Authors: | Zhang Dongjie Zhang Liangying Yao Xi Xi'an Jiaotong University Xi'an |
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| Affiliation: | Zhang Dongjie Zhang Liangying Yao Xi Xi'an Jiaotong University,Xi'an 710049 |
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| Abstract: | LiNbO 3/SiO 2 gel glass is synthetized at moderate temperature from Nb(OH) 5 as raw material by sol gel process.By using anylysis of DTA XRD IR,the controlled crystallization kinetics of LiNbO 3 crystals in gel glass is investigated.The results indicate that crystallization of LiNbO 3 is controlled by surface and glass crystal interface.The average energy value of LN crystallization is 142KJ/mol. |
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| Keywords: | LiNbO 3 crystal Gel glass Controlled crystallization |
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