|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||7th International Symposium on High Temperature Metallurgical Processing
||Preparing Silicide Layers on Metallic Substrates Using Molten Oxide Electrolysis
||Hideaki Sasaki, Masafumi Maeda
|On-Site Speaker (Planned)
Molybdenum and niobium-based alloys are promising high-temperature materials, which might have applications in gas turbines of aircraft engines and thermal power plants. To improve high-temperature oxidation resistance, coating a metallic substrate with silicide-based composites is investigated. Application of molten oxide electrolysis in the preparation of silicide on metals is also examined. A sheet of metal (Mo or Nb) is immersed in liquid SiO2−Li2O−MgO and the electrode potential is controlled for a predefined time. Electrochemical reduction of silicate ions is indicated depending on the potential, and formation of a silicide layer is observed on the metal after electrolysis. Formation of the silicide layer is discussed using thermodynamic information on the metal-silicon binary system.
||Planned: A print-only volume