期刊
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
卷 165, 期 3, 页码 156-159出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mseb.2009.09.015
关键词
Fast ion conduction; Glass transition; FTIR measurements; Borates
The presence of crystalline phase in low and medium lithium content boron oxide glasses xLi(2)O-B2O3, with x = 0.3-2.5, has been detected by combined infrared and impedance measurements. The borate glass samples apparently consist of one single phase, the vitreous. However, characteristic absorption bands appearing in infrared spectra of samples with x >= 0.8 indicate the presence of crystalline Li2O. Further evidence is provided by the gradual appearance and disappearance with increasing temperature of an additional electrical relaxation in impedance spectra, corresponding to the crystalline phase present in the borate glasses, which is associated with Li2O. (c) 2009 Elsevier B.V. All rights reserved.
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