Fast-Sintered Gehlenite Glass-Ceramics from Plasma-Vitrified Municipal Solid Waste Incinerator Fly Ashes

被引：50

作者：

Bernardo, Enrico ^{[1
]}

Scarinci, Giovanni ^{[1
]}

Edme, Erika ^{[2
]}

Michon, Ulysse ^{[2
]}

Planty, Nicholas ^{[2
]}

机构：

[1] Univ Padua, Dipartimento Ingn Meccan Settore Mat, I-35131 Padua, Italy

[2] EUROPLASMA, F-33100 Bordeaux, France

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2009年 / 92卷 / 02期

关键词：

VITRIFICATION; CRYSTALLIZATION; COMPOSITES; IMMOBILIZATION; PRODUCTS;

D O I：

10.1111/j.1551-2916.2008.02892.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

081705 [工业催化]; 082905 [生物质能源与材料];

摘要：

Plasma heating is a highly efficient industrial treatment for municipal solid waste incinerator fly ashes, converted into leach-resistant glass. The viscous flow sintering of glass powders appears a very promising way for the subsequent conversion of the vitrified waste, not refined and available as glass flakes, into valuable glass-ceramics. Because of the particular glass composition, the densification of glass-ceramics was much hindered by the strong tendency of glass toward surface crystallization. The crystallization of glass was successfully coupled to a low porosity, thus yielding strong gehlenite-based glass-ceramics (with a bending strength exceeding 100 MPa), by adopting a fast sintering treatment (direct insertion of glass compacts at 1050 degrees C, with an holding time of 1 h).

引用

页码：528 / 530

页数：3

共 23 条

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