炉渣α-sialon粉的高温自蔓延燃烧合成及炉渣α-sialon陶瓷性能的研究  

Synthesis of Slag α-sialon Powder by SHS and Properties of Slag α-sialon Ceramics

作　　者：蒋久信[1] 陈卫武[1] 王佩玲[1] 程一兵[2] 庄汉锐[1] 严东生[1] 

机构地区：[1]中科院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室,上海200050 [2]澳大利亚Monash大学物理与材料工程学院

出　　处：《无机材料学报》2004年第4期953-957,共5页Journal of Inorganic Materials

基　　金：中国科学院海外杰出学者项目(50272073;50140120423)

摘　　要：以高炉炉渣为原料,用高温自蔓延燃烧工艺合成了较为纯净的单相(Ca,Mg)α-sialon粉料(简称炉渣α-sialon粉),并用无压和热压烧结工艺将炉渣α-sialon粉烧结成了炉渣α-sialon陶瓷。对炉渣α-sialon陶瓷的力学性能进行了检测。结果表明,炉渣α-sialon陶瓷有较好的力学性能,优良的抗冲刷性能和抗酸腐蚀性能。(Ca,Mg) a-sialon powder containing rather pure α-sialon phase (abbreviated as salg α-sialon) was synthesized successfully by self-propagating high-temperature synthesis (SHS) technique, using slag as a raw material. The slag α-sialon powder was pressure-less and hot-pressed and the mechanical properties, the scour resistance to YAG, SiC, the erosion resistance to acid of slag a-sialon ceramics were studied. The results show that slag α-sialon ceramics have good mechanical properties and excellent scour resistance to YAG and SiC and erosion resistance to acid.

关 键 词：高温自蔓延燃烧合成(SHS) 炉渣α-sialon陶瓷 抗冲刷性能 抗腐蚀性能 

分 类 号：TQ174[化学工程—陶瓷工业]