Effect of waste B4C addition on high closed-pore porosity foamed ceramics

被引：22
|
作者：
Li, Xiang [1 ,2 ]
Pan, Mengbo [1 ,2 ]
Wu, Xiaopeng [1 ,2 ]
Ma, Chengliang [1 ,2 ]
机构：
[1] Zhengzhou Univ, Sch Mat Sci & Engn, 100 Sci Ave, Zhengzhou 450001, Peoples R China
[2] Zhengzhou Univ, Henan Key Lab High Temp Funct Ceram, 75 Daxue Rd, Zhengzhou 450052, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2022年 / 48卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Foamed ceramics; Insulation materials; B-4; C waste; Recycling; COAL FLY-ASH; MULLITE CERAMICS; FORMING AGENT; MICROSTRUCTURE; PROPERTY;
D O I：
10.1016/j.ceramint.2021.12.249
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：
In this study, high-temperature foaming was used to successfully prepare foamed ceramics with high closed-pore porosity and high strength using granite waste as the main raw material, SiC as the foaming agent, and B4C waste as the flux. The effects of the amount of B4C waste on the microstructure and physical properties of foamed ceramics were thoroughly investigated. Experimental results showed that under optimal preparation parameters, foamed ceramic has a low bulk density of 0.48 g/cm(3), available compressive strength of 4.97 MPa, the thermal conductivity of 0.18 W/(m & BULL;K), and high closed-pore porosity of 74.2%. The addition of a trace amount of B4C waste can significantly reduce firing temperature and energy consumption. Overall, these results indicated that the preparation of foamed ceramics is a promising strategy for recycling industrial waste into new types of insulation materials.
引用
收藏
页码：10311 / 10317
页数：7
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