Siliconizing of Molybdenum Plate Using Si sub 2 Cl sub 6 and Some of Its Properties

• Published in: Journal of materials science Vol. 22; no. 3; pp. 877 - 881
• Main Authors: Motojima, S, Uchida, C, Iwamori, N, Hattori, T
• Format: Journal Article
• Language: English
• Published: 01.03.1987
• ISSN: 0022-2461

Molybdenum plate was siliconized using Si sub 2 Cl sub 6 as a Si source, and the siliconizing conditions and some of its properties were examined. The siliconizing of the Mo plate began by the deposition of island-like MoSi sub 2 deposits 4-6 mu m thick in the initial stage (after 10 min induction time), and then coalescence of the deposits proceeded to form a uniform MoSi sub 2 layer all over the Mo plate after 30 min siliconizing time. The weight decrease of the siliconized plate by anodic dissolution in 0.2M sulphuric acid reduced exponentially with increasing thickness of the MoSi sub 2 layer, and no weight decrease was observed at all above 16 mu m thickness. The sea water corrosion and sea sand abrasion resistivities of the siliconized Mo plate increased with increasing siliconizing temperature and Si sub 2 Cl sub 6 flow rate. 9 ref.--AA