蜂窝陶瓷蓄热材料的研究现状

蜂窝陶瓷蓄热材料应该具有热膨胀系数低、比热容大、比表面积大、导热性能好、抗热震性好等特性。本文详细介绍了几种多孔陶瓷材料的优缺点,指出堇青石质复相材料是目前研究最广泛的蜂窝陶瓷材料。堇青石与多种催化剂匹配性好,比表面积大、热膨胀系数小,但耐热性稍差,于是通过添加一些添加剂来提高堇青石作为蜂窝陶瓷蓄热体的性能。这些添加剂与堇青石结合形成复相材料,可以降低热膨胀系数、提高抗热震性等。

The Research Status of Honeycomb Ceramics Thermal Storage Material

Honeycomb ceramics thermal storage material had many characteristics,such as low thermal expansion coefficient（ TEC）,high specific heat capacity,big specific surface area,good thermal conductivity,and good thermal shock resistance and so on. The advantages and disadvantages of several kinds of porous ceramics materials in details were introduced. It pointed out that cordierite material was the heterogeneous honeycomb ceramics material,which was the state-of-the-art most widely studied. The characteristic of cordierite matching with many kinds of catalyst was excellent,big specific surface area,low TEC,but its heat resistance was a bit poor,so by adding some additives to improve the performance of cordierite as the honeycomb ceramics thermal storage part. These additives and cordierite formed heterogeneous materials,thus the TEC was reduced,and the thermal shock resistance was improved,etc.