Origins of colour in Yb-Si-Al-O-N glasses

被引：9

作者：

Redington, Wynette ^{[1
]}

Kidari, Abdessamad ^{[1
]}

Redington, Murt ^{[1
]}

Laffir, Fathima ^{[1
]}

Pomeroy, Michael J. ^{[1
]}

Hampshire, Stuart ^{[1
]}

机构：

[1] Univ Limerick, Mat & Surface Sci Inst, Limerick, Ireland

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2012年 / 32卷 / 07期

关键词：

Glass; SiAlON; Colour; Spectroscopy; X-ray methods; SILICON-NITRIDE; LN; MICROSTRUCTURE; CERAMICS; MELTS; SM;

D O I：

10.1016/j.jeurceramsoc.2011.04.027

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Previous work has shown that some RE-Si-Al-O-N glasses are coloured. In particular, oxynitride glasses containing Ytterbium were observed to display a wide range of colours depending on their composition. The reasons for this were not immediately evident. As Ytterbium and Europium have been reported to display valency variations in silicate glasses and alpha-SiAlONs, the current study prepared a range of Yb-Si-Al-O-N glasses, characterised them by means of X-ray photoelectron, Raman, FTIR and UV-vis spectroscopy as well as thermal analysis and X-ray diffraction. The correlation between the structural features of the glasses with the changes in colour occurring when varying the Yb:Al ratio were investigated. Ytterbium garnet was found to be the source of colour change in the Yb-Si-Al-O-N in the compositions studied. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1359 / 1364

页数：6

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