自蔓延高温合成先进材料的研究新进展  

New Progress in Self-propagating High Temperature Synthesis of Advanced Materials

作　　者：李正宁 喇培清[2] 孟倩 王鸿鼎[1] 王文科 康纪龙 蒲永亮 LI Zhengning;LA Peiqing;MENG Qian;WANG Hongding;WANG Wenke;KANG Jilong;PU Yongliang(School of Materials Science and Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州交通大学材料科学与工程学院,兰州730070 [2]兰州理工大学有色金属先进加工与再利用省部共建国家重点实验室,兰州730050

出　　处：《材料导报》2023年第19期66-73,共8页Materials Reports

基　　金：甘肃省教育厅创新基金项目(2021A-038);甘肃省自然科学基金项目(20JR10RA266,21JR7RA312);兰州交通大学青年基金(2020057)。

摘　　要：自蔓延高温合成(SHS)技术利用反应体系自身的放热来维持反应的进行,是高效低成本制备特殊性能先进材料的方法之一。本文概述了自蔓延高温反应的燃烧机理,通过热力学计算证明了反应体系自加热实现高温的可能性,并介绍了化学计量数、反应物料量、保护气压力、反应物料颗粒大小、坯料密度和点火方式等工艺参数对SHS反应的影响,综述了SHS在无机非金属、金属间化合物、块体合金等材料制备中的研究新进展,最后总结了现有SHS的一些技术瓶颈、工艺难点以及相应的解决路径,并分析了该技术实现大规模产业化应用所需的条件。Self-propagating high temperature synthesis(SHS)technology uses the reaction system itself to maintain the heat of the reaction.It is one of the efficient and low-cost methods to prepare advanced materials with special properties.In this paper,the combustion mechanism of the self-propagating high temperature reaction is summarized,the influence of reaction parameters such as stoichiometry of the reactants,quantity of reactants,gas pressure,reactant particle size,green density and ignition method,is briefly reported.The research progress of SHS in the preparation of inorganic nonmetallic materials,intermetallic compounds,bulk alloys and other materials is reviewed.Finally,some technical bottlenecks,technological difficulties and corresponding solutions of existing SHS technology are summarized,and the technical conditions for large-scale industrial application of this technology are analyzed.

关 键 词：自蔓延高温合成 无机非金属材料 金属间化合物 块体合金 

分 类 号：TB303[一般工业技术—材料科学与工程]