Syntheses of Fe2O3/silica red inorganic inclusion pigments for ceramic applications

被引：115

作者：

Bondioli, F ^{[1
]}

Ferrari, AM ^{[1
]}

Leonelli, C ^{[1
]}

Manfredini, T ^{[1
]}

机构：

[1] Univ Modena, Dept Chem, Fac Engn, I-41100 Modena, Italy

来源：

MATERIALS RESEARCH BULLETIN | 1998年 / 33卷 / 05期

关键词：

ceramics; glasses;

D O I：

10.1016/S0025-5408(98)00047-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The work focuses on the syntheses of red inorganic ceramic pigments by inclusion of hematite in a fumed silica matrix. Leaching tests in boiling solutions of concentrated (36 wt%) hydrochloric acid demonstrated that, starting from mixtures of fumed silica and synthetic goethite, the occlusion of hematite occurs by calcination at 1150-1200 degrees C for 2-4 h. Better results were obtained by using fumed silica having surface area ranging from 300 to 400 m(2)/g. A continuos change in colour was measured by comparing L-a-b values of the calcined samples and more information were obtained by the Kubelka-Munk absorption function. Because its chemical and thermal stability, the obtained heteromorphic pigment may be considered a suitable red pigment for ceramic manufacturing by fast firing cycles. (C) 1998 Elsevier Science Ltd.

引用

页码：723 / 729

页数：7