For high temperature applications associated with power generation, materials are often subjected to a combustion environment containing water vapor. Under this condition, alloys that develop protective oxide surface layer in a dry air environment exhibit a significant reduction in effectiveness. Oxide scales such as Cr₂O₃, SiO₂, B₂O₃ and Al₂O₃ react with water vapor at high temperature to generate volatile species that result in an increase in oxidation attack. Upon oxidation of Mo-Si-B alloys the resulting borosilica scale provides some protection that depends on the B/Si ratio, but the scale suffers accelerated attack in a water vapor environment. After a pack cementation co-deposition of (B + Si) an enhanced resistance to water vapor attack is observed that is related to the incorporation of alumina in the borosilica during pack cementation. An analysis of the water vapor exposure at 1300 °C reveals an estimated coating lifetime of about 82,000 h.

对于与发电相关的高温应用，材料通常要经受含有水蒸气的燃烧环境。在这种情况下，在干燥空气环境中形成保护性氧化物表面层的合金表现出有效性的显着降低。Cr ₂ O ₃、SiO ₂、B ₂ O ₃和Al ₂ O ₃等氧化皮在高温下与水蒸气反应生成挥发性物质，导致氧化侵蚀增加。在 Mo-Si-B 合金氧化时，生成的硼硅氧化皮提供了一些保护，这取决于 B/Si 比，但在水蒸气环境中，氧化皮会加速侵蚀。在 (B + Si) 的填充胶结共沉积后，观察到增强的抗水蒸气侵蚀能力，这与填充胶结过程中在硼硅石中掺入氧化铝有关。对 1300 °C 下水蒸气暴露的分析表明，估计涂层寿命约为 82,000 小时。