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前言铌合金是具有优异高温性能的难熔金属之一,它熔点高、比重低、高温强度大,可做为1100℃以上的高温结构材料,在火箭推进器、宇宙飞船等方面广泛应用。但其致命缺点是在很低的温度下就开始氧化,所以混合金的应用是与其抗氧化涂层的研究分不开的。铌合金抗氧化涂层在国外研究比较广泛,特别是近十余年来,美国Sylvania公司
Introduction Niobium alloy is one of refractory metals with excellent high temperature performance. It has high melting point, low specific gravity and high temperature strength. It can be used as high temperature structural material above 1100 ℃ and is widely used in rocket propulsion and spacecraft. However, its fatal drawback is that it starts to oxidize at a very low temperature, so the application of mixed gold is inseparable from the research of its anti-oxidation coating. Niobium alloy anti-oxidation coating is widely studied abroad, especially in the past ten years, the United States Sylvania