New red-shade ceramic pigments based on Y2Sn2-xCrxO7-δ pyrochlore solid solutions

被引：0

作者：

Pavlov, RS ^{[1
]}

Castelló, JBC ^{[1
]}

Marzá, VB ^{[1
]}

Hohembergerger, JM ^{[1
]}

机构：

[1] Univ Jaume 1, Dept Inorgan & Organ Chem, Castellon de La Plana 12080, Spain

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2002年 / 85卷 / 05期

关键词：

D O I：

暂无

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：

New high-stability red-shade ceramic pigments based on pyrochlore solid solutions Y2Sn2-xCrxO7-delta (x = 0-1, 0 < delta = 0-(1)/(2)x) were developed employing conventional solid-state reaction synthesis. The relationship between their optical properties and microstructure was analyzed by X-ray diffractometry and ultraviolet-visible-light spectroscopy. Decomposition of the structure with formation of the perovskite YCrO3 observed for chromium substitutions x 2: 5 was attributed mainly to high concentration of defects. The structural and optical parameters of the materials were found to correlate with the concentration of a species with higher oxidation state than Cr(III), such as Cr(IV) or Cr(V).

引用

页码：1197 / 1202

页数：6

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