金属材料微波烧结技术的研究进展

Recent Progress on Microwave Sintering of Metal Materials

金属及其合金、复合材料的快速烧结一直都是金属材料领域的难题。微波烧结技术因具有体积加热、选择性加热以及非热效应等特性,相比于传统烧结工艺能够显著降低烧结温度、缩短烧结周期,在制备结构均匀、晶粒细小、综合力学性能优异的金属材料方面拥有巨大的潜力。本文介绍了金属材料微波烧结过程中热效应(介电损耗、电导损耗与磁损耗)与非热效应(放电效应与磁效应)对烧结制品的影响,综述了近几年国内外微波烧结金属及其合金、复合材料方面的主要研究进展,对微波烧结过程中存在的问题进行了分析,并对后续金属材料微波烧结技术的研究方向进行了展望,以期为后续研究者提供有力参考。

The rapid sintering of metals and their alloys and composite materials has always been a problem in the field of metal materials.Microwave sintering technology has the characteristics of volume heating,selective heating and non-thermal effect.Compared with the traditional sintering process,it has great potential in the field of metal materials with fine and uniform grain structure and excellent comprehensive mechanical properties.This article describes the influence of the thermal effects(dielectric,conductance and magnetic loss)and the non-thermal effects(discharge and magnetic effect)on sintered samples during the microwave sintering process.The major progress on the microwave sintering of metals,alloys and their composite materials were reviewed.The problems faced in the current research are analyzed,and the research direction of microwave sintering technology in the future is prospected,which provides a powerful reference for follow-up researchers.