期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
球磨时间对高粒径比SiC_p/6061Al复合粉末形貌及复合材料组织与性能的影响 被引量:5
1
作者 柳培 王爱琴 +3 位作者 兖利鹏 谢敬佩 郝世明 王行 《粉末冶金材料科学与工程》 EI 北大核心 2014年第4期523-529,共7页
采用湿磨-高能球磨法对高粒径比的6061Al粉末和SiC混合粉末进行预处理,利用真空热压烧结法制备SiCp/6061Al复合材料。用XRD、SEM、TEM、拉伸强度等测试方法研究球磨时间对复合粉末形貌及复合材料组织和性能的影响。结果表明:在球磨过程... 采用湿磨-高能球磨法对高粒径比的6061Al粉末和SiC混合粉末进行预处理,利用真空热压烧结法制备SiCp/6061Al复合材料。用XRD、SEM、TEM、拉伸强度等测试方法研究球磨时间对复合粉末形貌及复合材料组织和性能的影响。结果表明:在球磨过程中铝粉和SiC颗粒形成复合聚合体,采用乙醇做控制剂,可有效地抑制冷焊反应发生;随球磨时间延长,复合聚合体逐渐变薄并最终断裂;聚合体中碳化硅的含量先增高后降低;铝粉中晶粒尺寸逐渐降低,位错增多;SiC颗粒发生碎化,在基体中分布更加均匀;复合材料的拉伸强度提高,可达到258 MPa。 展开更多
关键词 SICP 6061Al复合材料 湿磨-高能球磨法 球磨时间 高粒径比 真空热压法
下载PDF
A general method for silo classification using rupture plane 被引量:2
2
作者 原方 王辉 +1 位作者 胡玉霞 张松松 《Journal of Southeast University(English Edition)》 EI CAS 2009年第3期381-384,共4页
A new method is presented for silo classification using the rupture plane in the storage. The proposed method is based on the formula of rupture plane orientation determined by the aspect ratio of specified silos and ... A new method is presented for silo classification using the rupture plane in the storage. The proposed method is based on the formula of rupture plane orientation determined by the aspect ratio of specified silos and involves the effects of the conical angle of the storage surface, so it can deal with two cases: the conical angle of the storage surface and the flat storage surface. Compared with the two popular methods based on the silo-aspect ratio and the silo rupture plane, respectively, in current engineering design, the new method can give a range of critical aspect ratios to classify deep silos and squat silos according to the conical angle of the storage surface or the fiat storage surface. Moreover, the range covers the critical aspect ratios obtained from the existing classification methods including the Chinese code based on silo aspect ratios, the German code, Reimbert brothers' definition and Liang et al. 's definition, so it is a more general method to classify silos and the existing methods can be viewed as special cases of the presented method. 展开更多
关键词 SILO aspect ratio bulk solid rupture plane rupture angle
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部