Coexistence of triclinic and monoclinic phases in WO3 ceramics

被引：0

作者：

Souza, AG

Freire, VN

Sasaki, JM

Mendes, J

Juliao, JF

Gomes, UU

机构：

[1] Univ Fed Ceara, Dept Fis, BR-60455760 Fortaleza, Ceara, Brazil

[2] Univ Fortaleza, BR-60811341 Fortaleza, Ceara, Brazil

[3] Univ Fed Rio Grande Norte, Dept Fis Teor & Expt, BR-59072910 Natal, RN, Brazil

来源：

JOURNAL OF RAMAN SPECTROSCOPY | 2000年 / 31卷 / 06期

关键词：

D O I：

10.1002/1097-4555(200006)31:6<451::AID-JRS528>3.0.CO;2-K

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The coexstence of phases in WO3 ceramics sintered within the 600-1000 degrees C temperature range is investigated using Raman microprobe spectroscopy, The analysis of vibrational modes indicates the existence of triclinic (VI) P (1) over bar and monoclinic (V) P2(1)/n phases mixing. The concentration ratio between WO3 microcrystals in the former and the latter phases is shown to depend on the ceramics sintering temperature, reaching a maximum value favouring the triclinic (VI) P (1) over bar phase at the 800 degrees C sintering temperature. Copyright (C) 2000 John Whey & Sons, Ltd.

引用

页码：451 / 454

页数：4

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