典型文献
High temperature oxidation and ablation behaviors of HfB2-SiC/SiC coatings for carbon/carbon composites fabricated by dipping-carbonization assisted pack cementation
文献摘要：
To improve the uniformity and the content of HfB2 in HfB2-Si-based ceramic coating and alleviate the damage of substrate,and then enhance the high-temperature(1700℃)oxidation and cyclic ablation resistances of carbon/carbon composites,a close-knit double layer HfB2-SiC/SiC coatings with a mosaic structure and high content of HfB2 were prepared by a novel dipping-carbonization assisted pack cemen-tation methods(DPC-HS/S).In contrast,a HfB2-SiC/SiC coatings were also fabricated by pack cementa-tion(PC-HS/S).Results revealed that the oxidation and ablation protective performances of the DPC-HS/S coatings were superior to those of PC-HS/S coatings.After 30 thermal cycles between 1500℃and room temperature,the mass gain of the coated sample was 0.78％,and the mass loss was 1.65％after oxidation at 1700℃for 156 h.Moreover,under an oxyacetylene torch ablation for 180 s(3 cycles),the linear abla-tion rate of the DPC-HS/S coated specimen was 1.62 um/s,which was much lower than that of PC-HS/S coated specimen(3.08μm/s).
文献关键词：
中图分类号：
作者姓名：
Lei Zhou;Jiaping Zhang;Dou Hu;Qiangang Fu;Wuqing Ding;Jiaqi Hou;Bing Liu;Mingde Tong
作者机构：
State Key Laboratory of Solidification Processing,Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials,Northwestern Polytechnical University,Xi'an 710072,China
文献出处：
引用格式：
[1]Lei Zhou;Jiaping Zhang;Dou Hu;Qiangang Fu;Wuqing Ding;Jiaqi Hou;Bing Liu;Mingde Tong-.High temperature oxidation and ablation behaviors of HfB2-SiC/SiC coatings for carbon/carbon composites fabricated by dipping-carbonization assisted pack cementation)[J].材料科学技术（英文版）,2022(16):88-98
A类：
cemen,cementa,oxyacetylene
B类：
High,temperature,oxidation,ablation,behaviors,HfB2,SiC,coatings,composites,fabricated,by,dipping,carbonization,assisted,pack,cementation,To,improve,uniformity,content,ceramic,alleviate,damage,substrate,then,enhance,high,cyclic,resistances,close,knit,double,layer,mosaic,structure,were,prepared,novel,methods,DPC,HS,In,contrast,also,Results,revealed,that,protective,performances,superior,those,After,thermal,cycles,between,room,mass,gain,coated,sample,was,loss,after,Moreover,under,torch,linear,specimen,um,which,much,lower,than
AB值：
0.450572
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