Surface strengthening of Ti3SiC2 through magnetron sputtering of Mo and Zr and subsequent annealing |
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| Authors: | Haiping Guo Aijun Li Jie Zhang Lingfeng He Yanchun Zhou |
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| Affiliation: | 1. School of Mechanical Engineering and Automation, Wuhan textile University, Wuhan 430073, People''s Republic of China;2. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People''s Republic of China;1. Materials Processing Division, Bhabha Atomic Research Centre, Mumbai, India;2. Refueling Technology Division, Bhabha Atomic Research Centre, Mumbai, India;3. Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai, India |
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| Abstract: | Magnetron sputtering deposition of Mo and Zr and subsequent annealing were conducted with the motivation to modify the surface hardness of Ti3SiC2. For Mo-coated Ti3SiC2, Si diffused outward into the Mo layer and reacted with Mo to form molybdenum silicides in the temperature range of 1000–1100 °C. The MoSi2 layer, however, cracked and easily spalled off. For Zr-coated Ti3SiC2, Si also diffused outward to form Zr–Si intermetallic compounds at 900–1100 °C. The Zr–Si compounds layer had good adhesion with Ti3SiC2 substrate, which resulted in the increased surface hardness. |
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