共搜索到8946条信息,每页显示10条信息,共895页。用时:0小时0分0秒453毫秒
Article ID: 1003-6326(2005)05-1067-05 Joining of SiCp/Al composites by insert powder layers HUANG Ji-hua(黄继华), DONG Yue-ling(董月铃), WAN Yun(万 云), ZHANG Jian-gang(张建纲), ZHOU Guo-an(周国安... to reactive diffusion bond SiCp/6063 MMC. The results show that SiCp/6063 MMC joints bonded by the insert layer of the mixed Al-Si powder have a dense joining layer with a typical hypoeutectic......
-solid state. LANGE et al [6] studied the densification behavior of mixed powders under various types of powders and experimental conditions by powder metallurgy. WU and KIM [7] studied the compaction behavior of Al6061 powders and discussed the relationship between the compaction pressure and relative density of powder in the semi-solid state. KIM et al [8] studied the densification behavior......
......
) of sintered materials was measured using a universal testing machine (Instron 3367). 3 Results Pure Al powder was initially compacted to obtain a suitable compaction pressure for Al-Cu-Mg alloy powder... three stages of powder deformation, elastic, local plastic, and plastic, respectively. The variation of green compaction density is illustrated in Fig. 2. The relative density of green compacts......
content. Key words: powder compaction; high strain rate; Mg-B4C composite; hardness; mechanical properties; wear behavior 1 Introduction Nowadays, the modern world is moving towards a new era in which... or during the fabrication process [16]. However, powder metallurgy can be conducted through the high-velocity compaction (HVC) by using shockwave consolidation. Very few studies have investigated......
......
] PAN J, CH’NG H N, COCKS A C F. Sintering kinetics of large pores [J]. Mechanics of Materials, 2005, 37: 705-721. [38] COCKS A C F. Constitutive modelling of powder compaction and sintering [J... for the application in clinic orthopaedics field was manufactured by powder metallurgy technique using polymethyl methacrylate as the space holder under different sintering conditions. The final morphological......
......
making use of dry impact blending method to achieve powder surface modification. Parameters of coating were analyzed and the most appropriate condition was summarized. Scan electron microscope..., pretreatment of materials etc influence the coating results evidently. Mixing raw materials and coating with BN under the appropriate condition can get round TiB2/BN composite powder with smooth......
J. Cent. South Univ. (2016) 23: 2669-2675 DOI: 10.1007/s11771-016-3328-1 Mass ratio design based on compaction properties of backfill materials LI Meng(李猛), ZHANG Ji-xiong(张吉雄), HUANG Peng(黄鹏), GAO... on the basis of the basic principle of solid backfill mining. In addition, the density-stress relationship of backfill materials under compaction was obtained for five types of materials to derive......