Characterization of LiNbO3 Powder Prepared by Citrate Gel Method

被引：3

作者：

Onnom, S. ^{[1
]}

Wongratanaphisn, D. ^{[2
]}

Supaphol, P. ^{[3
]}

Udomsamuthirun, P. ^{[1
]}

Nilkamjon, T. ^{[1
]}

Radrang, S. ^{[1
]}

Sonkrua, S. ^{[1
]}

Payoogthum, S. ^{[1
]}

机构：

[1] Srinakharinwirot Univ, Fac Sci, Dept Phys, Sukumvit 23, Bangkok 10110, Thailand

[2] Chiang Mai Univ, Fac Sci, Dept Phys, Chiang Mai 50200, Thailand

[3] Chulalongkorn Univ, Petr & Petr Coll, Bangkok 10330, Thailand

来源：

SMART MATERIALS | 2008年 / 55-57卷

关键词：

LiNbO3; powder; citrate gel method;

D O I：

10.4028/www.scientific.net/AMR.55-57.153

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lithium niobate powder (LiNbO3) were synthesized by citrate gel method using LiNO3, Nb2O5, citric acid and I-IF as starting materials. LiNO3 was dissolved ill distilled water that activated into LiOH. Nb2O5 was dissolved in minimum amount of HF at 37 degrees C for 20 h. that activated into NbF5. Then citric acid, LiOH, and NbF5 were mixed in stoichiometric ratio. On heating at 100 degrees C for 3-4 h. a yellowish gel is formed. Lithium niobate powders were obtained after calcination at 550-700 degrees C. The effect of calcination temperature at various temperatures ranging from 550 degrees C to 700 degrees C were investigated. The phase and chemical composition of the synthesized powders were characterized by using XRD, SEM, TEM, FTIR and EDX. We found that the lithium niobate crystallize phase formed when the calcination temperature at 650 degrees C with average particle size of around 100 nm.

引用

页码：153 / +

页数：2

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