节点文献
ZrC_p/W复合材料的烧蚀性能
Ablation Properties of ZrC_p/W Composites
【摘要】 用自制的氧乙炔烧蚀装置对ZrCp/W复合材料烧蚀性能进行了研究。结果表明:复合材料的质量烧蚀率和线烧蚀率由低到高的排列顺序为 40%ZrCp(体积分数,下同)/W<30%ZrCp/W<W;钨中加入ZrC颗粒明显提高了钨的抗烧蚀性能,而且 ZrC颗粒含量越高,材料抗烧蚀性能越好。并用多波长高温计对烧蚀表面温度进行在线测试。复合材料烧蚀机理是W,ZrC的氧化烧蚀。
【Abstract】 The ablation properties of ZrCp/W composite were measured using a self--made oxyacetylene ablation equipment. The results indicate that the values of mass ablation rate and linear ablation rate are in the order of W>30vol%ZrCp/W>40vol% ZrCp/W. The ablation resistance of the composites greatly increases with increasing ZrC particle content. The important ablation surface temperature curves were detected in situ using a multi--wavelength pyrometer. Thermochemical oxidation of ZrC and W is the main ablation mechanism of ZrCp/W composites.
- 【文献出处】 稀有金属材料与工程 ,Rare Metal Materials and Engineering , 编辑部邮箱 ,2001年02期
- 【分类号】TB331
- 【被引频次】16
- 【下载频次】226