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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。
LiNbO3 / SiO2 gel glass was synthesized by sol-gel process and Nb (OH) 5 as niobate starting material. The crystallization process and crystallization kinetics of LiNbO3 in the gel glass were studied by DTA, XRD and IR. The results show that the crystallization of LiNbO3 crystallites in the gel glass is controlled by the interface and the activation energy of crystallization is 142KJ / mol.