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钨、钼、钽、铌等难熔金属具有熔点高,高温强度大,合金化后强度有更显著的提高,是很有希望在1200℃以上广泛应用的高温金属材料。但由于它们的高温抗氧化性能都很差,而使其应用受到限制。世界各国都在大力研究和发展相应的高温抗氧化涂层。《新型无机材料》72年第二期43页上报导了中国科学院硅酸盐化学与工学研究所关
Refractory metals such as tungsten, molybdenum, tantalum and niobium have the advantages of high melting point, high temperature strength, and more significant increase in strength after alloying. It is a promising high temperature metal material widely used above 1200 ° C. However, due to their high temperature oxidation resistance are poor, leaving its application is limited. All countries in the world are vigorously studying and developing corresponding high-temperature anti-oxidation coatings. New Inorganic Materials 72, Issue 2, pp. 43, reported the Institute of Silicate Chemistry and Engineering, Chinese Academy of Sciences