Publication Date:
2014-12-13
Description:
Publication date: February 2015 Source: Vacuum, Volume 112 Author(s): Jianfeng Huang , Wei Hao , Hejun Li , Qiangang Fu , Liyun Cao , yongliang Zhang , Cuiyan Li , Lixiong Yin , Haibo Ouyang An AlPO 4 oxidation-protective coating was successfully prepared on SiC pre-coated carbon/carbon composites (SiC–C/C) by pulse arc discharge deposition. The structure and oxidation resistance of the as-prepared AlPO 4 /SiC multilayer coatings were investigated. The results were confirmed by oxidation experiments performed at 1573 K, 1673 K and 1773 K, which demonstrated that the AlPO 4 /SiC coating could efficiently protect C/C composites from oxidation at 1773 K for 160 h with a weight loss of only 0.7%. The oxidation activation energy of the coated C/C composites at 1573–1773 K was calculated to be 119.2 kJ mol −1 .
Print ISSN:
0042-207X
Electronic ISSN:
1879-2715
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
