Sintered esseneite-wollastonite-plagioclase glass-ceramics from vitrified waste

被引:48
作者
Bernardo, E. [1 ]
Esposito, L. [2 ]
Rambaldi, E. [2 ]
Tucci, A. [2 ]
Pontikes, Y. [3 ]
Angelopoulos, G. N. [3 ]
机构
[1] Univ Padua, Dipartimento Ingn Meccan, I-35131 Padua, Italy
[2] Ctr Ceram Bologna, I-40138 Bologna, Italy
[3] Univ Patras, Dept Chem Engn, Lab Mat & Met, Rion 26500, Greece
关键词
Sintering; Mechanical properties; Glass-ceramics; Structural applications; INDUCED CRYSTALLIZATION POROSITY; MATRIX COMPOSITES; INDUSTRIAL-WASTES; PART; PRODUCTS; TILES; VITRIFICATION; DIOPSIDE; KINETICS; BEHAVIOR;
D O I
10.1016/j.jeurceramsoc.2009.05.017
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
Dense sintered esseneite-wollastonite-plagioclase glass-ceramics have been successfully prepared from a vitrified mixture of important inorganic waste (Bayer process red mud, fly ash from lignite combustion and residues from the polishing of porcelain stoneware tiles). The enhanced nucleation activity of fine glass powders, favoured by particular oxidation conditions, caused a substantial crystallisation, even in the case of very rapid thermal treatments at 900 degrees C, which led to remarkable mechanical properties (bending strength and Vickers micro-hardness exceeding 130 MPa and 7 GPa, respectively) and a promising chemical durability. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2921 / 2927
页数:7
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