SEN Saduman Sakarya University

Spoluautoři OZDEMİR Ozkan, YILMAZ Şenol, SEN Ugur

In this study, molybdenum was siliconized by pack method which is realized by diffusion of silicon on the molybdenum substrate at high temperature. Coating treatment was realized at 1100°C for 1-4 h. Coated samples were examined by optical and scanning electron microscopy (SEM), Energy dispersive spectroscopy (SEM-EDS) and x-ray diffraction analysis (XRD). Siliconized layer of the coated molybdenum is compact, smooth and porosity free. X-ray diffraction analysis showed that siliconized molybdenum includes MoSi2 and Mo5Si3 phases. The depth of siliconized layer depending on treatment time is changing between 24.2±1.03 µm and 70.6±1.52 µm. While the hardness of the molybdenum silicide layer is changing between 1262.5 and 1791.4 8 HV0.01, the hardness of the matrix is 260 HV0.01.