SiO_(2p)/Ni和SiC_p/Ni复合材料抗氧化性能研究

Oxidation resistance behavior of composite of SiO_(2p)/Ni and SiC_p/Ni

采用粉末冶金方法制备了SiO2p/Ni和SiCp/Ni复合材料,研究了两种复合材料在恒温氧化和循环氧化条件下的抗氧化性能。结果表明:两种复合材料比基体Ni有更好的抗氧化性能;复合材料SiO2p/Ni的抗氧化性能优于SiCp/Ni复合材料;复合材料的循环氧化速率高于恒温氧化速率。

Composite of SiO_(2p)/Ni and SiC_p/Ni are fabricated by powder metallurgy, The isothermal oxidation and thermal cyclic oxidation behavior of the composites are studied. The results show that the oxidation resistance behavior of SiO_(2p)/Ni and SiC_p/Ni is evidently better than Ni, and SiO_(2p)/Ni is better than SiC_p/Ni , the speed of cyclic oxidation is higher than isothermal oxidation for SiO_(2p)/Ni and SiC_p/Ni.