【摘 要】
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A novel method has been proposed to prepare porous materials through deposition of semi-molten particles by flame spraying. It was found that the welding of particles by the molten fraction of semi-mo
【机 构】
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College of Materials Science and Engineering, Xi'an Shiyou University, Xi'an, 710065, China
【出 处】
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第十一届全国表面工程大会暨第八届全国青年表面工程学术会议
论文部分内容阅读
A novel method has been proposed to prepare porous materials through deposition of semi-molten particles by flame spraying. It was found that the welding of particles by the molten fraction of semi-molten spray particles forms large bonding necks between deposited particles. In order to reveal the particles connection states relative on the compression performance of porous deposits, the combination neck size between the deposited particles and phase structure was investigated. Besides, for research the variation in the particles connection states of the deposited particles, the as-sprayed porous Mo was kept at different times for heat treatment. Results showed that the compression performance increase with the combination neck size increase. The phase structure have significant influences on the particles connection states, resulting in different compression performances. In addition, the particles connection states could be improved by optimizing the heat treatment conditions, which have an effect on the sintering of porous skeleton. Therefore, the compression performance of porous sample was improved.
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