Vermiculite - A promising material for high-temperature heat insulators

被引：75

作者：

Suvorov, SA ^{[1
]}

Skurikhin, VV

机构：

[1] Tech Univ, St Petersburg State Technol Inst, St Petersburg, Russia

[2] Joint Stock Co, Borovichi Refractory Kombinat, Borovichi, Novogorod Reg, Russia

来源：

REFRACTORIES AND INDUSTRIAL CERAMICS | 2003年 / 44卷 / 03期

关键词：

Bulk Density; Thermal Power; Power Unit; High Melting Point; Environmental Safety;

D O I：

10.1023/A:1026312619843

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：

Vermiculite, a mineral of natural occurrence of the group of hydromicas, when heated to above 300degreesC, expands to become a highly efficient heat-insulating material. The expanded vermiculite, owing to its unique properties - low bulk density, low heat conductivity, relatively high melting point, chemical inertness, endurance, and environmental safety - can be used as a filler for heat-insulating materials. Heat insulators based on expanded vermiculite can be used in thermal power units with the hot-wall temperature not exceeding 1150degreesC as replacement for lightweight chamotte components and fibrous heat insulators.

引用

页码：186 / 193

页数：8