现代烧结技术在难熔金属材料中的应用

Application of Modern Sintering Techniques in Refractory Metal Materials

微波烧结、放电等离子体烧结、选择性激光烧结作为材料烧结致密化的新技术是活化烧结和快速烧结的有机结合,它们不仅具有升温速度快、烧结时间短、抑制晶粒长大、组织结构可控等独特的优势,而且还具有生产周期短、高效节能的巨大工业应用价值和前景,已成为当今材料领域的研究热点。难熔金属材料及其合金的烧结一直是难熔材料制备和烧结领域的难题,为了进一步探索难熔金属材料及其合金的新型烧结技术,探讨了微波烧结、放电等离子体烧结、选择性激光烧结在难熔金属材料及其合金制备中的应用现状,综述了其工作原理、特点及系统组成。

The novel sintering techniques, including microwave sintering, spark plasma sintering and selective laser sintering organically combining activated sintering with rapid sintering, are used for materials consolidation Not only do they possess unique advantages on rapid heating rate, short sintering time, inhibiting grain growth and controlling microstructure, but also show enormous industrial application value and prospect in terms of short production cycle and high efficiency energy saving, so the new sintering techniques have become a present research focus in mate- rial field. The sintering of refractory metal materials and their alloys are hard technical problems in material preparation field. In order to further explore novel sintering technology of refractory metal materials and their alloys, the current application of microwave sintering, spark plasma sintering and selective laser sintering in refractory metal materials are discussed in this paper, and its principles, characteristics and system composition are also summarized.