Mullite development on firing in porcelain stoneware bodies

被引：101

作者：

Martin-Marquez, Jorge ^{[1
]}

Ma. Rincon, Jesus ^{[1
]}

Romero, Maximina ^{[1
]}

机构：

[1] CSIC, Grp Glass & Ceram Mat, Dept Bldg Construct Syst, Eduardo Torroja Inst Construct Sci, Madrid 28033, Spain

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2010年 / 30卷 / 07期

关键词：

Mullite; Porcelain stoneware; Microstructure; Electron microscopy; Traditional ceramics; MICROSTRUCTURAL EVOLUTION; QUARTZ FILLER; TILES; KAOLIN; BODY; CERAMICS; CLAY; TEMPERATURE; MIXTURES; GLASS;

D O I：

10.1016/j.jeurceramsoc.2010.01.002

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：

Microstructural evolution on heating was investigated in a reference industrial composition (50% kaolinitic clay, 40% feldspar and 10% quartz) of porcelain stoneware, fast fired at different temperatures (500-1400 degrees C) The evolution of mullite crystals, regarding shape and size progress, was examined by scanning electron microscopy (SEM). The proportion of Type I mullite crystals decreases with firing temperature and simultaneously, the size of crystals increases, reaching the maximum value of aspect ratio (3 1) at 1400 degrees C Type II and Type III secondary mullite needles increase with temperature in both number and length, which leads to an increase in the aspect ratio from 5 1 to 20 I in Type 11 crystals and from similar to 33.1 to 50 1 in Type III mullite needles Finally, clusters of Type III mullite fibres are observed in porcelain stoneware samples fast fired in the 1250-1280 degrees C interval (C) 2010 Elsevier Ltd All rights reserved

引用

页码：1599 / 1607

页数：9

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