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, Hefei 230009, China) Abstract: Copper-matrix composites reinforced with SiC particles were fabricated by powder metallurgy plus electroless deposition. The effects of modification with different...] Nikolopoulos P. Study of the admixture method of powder metallurgy for metal-matrix composites[J]. Journal of Materials Science, 1994, 32: 23?28. [11] 刘君武, 吕 珺, 王建民, 等. SiC粉体化学镀铜工艺研究[J]. 电镀与涂饰, 2005, 24(12......
弹性模量最高. 4) 研究中复合材料界面没有达到理想结合强度,SiC颗粒出现部分团聚和断裂的情况,因此,实验值与模拟值出现一定的偏差. REFERENCES [1] SHAO J C, XIAO B L, WANG Q Z, MA Z Y, LIU Y, YANG K. Constitutive flow behavior and hot workability of powder...文章编号:1004-0609(2012)02-0476-09 有限元模拟SiC增强Al基复合材料的力学行为 孙 超,沈茹娟,宋 旼 (中南大学 粉末冶金国家重点实验室,长沙 410083) 摘 要:采用有限元方法和轴对称单胞模型模拟了增强体(SiC)形状,体积分数以及不同基体类型对铝基复合材料力学行为的影响.模拟结果表明:增强体的加入会阻碍基体的塑性流变,使基......
of Materials Processing Technology, 2004, 153/154: 514–518. [4] Gnjidic Z, Grbovic J, Mitkov M. Influence of SiC particles on compressive strength of sintered aluminum alloy[J]. Powder Metallurgy, 2003, 46(1... Mechanical properties and fractograph of SiC foam-SiC particles-Al composites ZHAO Long-zhi(赵龙志)1, ZHAO Ming-juan(赵明娟)1, CAO Xiao-ming(曹小明)2, TIAN Chong(田 冲)2, HU Wan-ping(胡宛平)2, ZHANG Jin......
of 23, 38 and 75 μm) were prepared by powder metallurgy. The influences of SiC particle sizes and annealing on the properties of the composites were investigated. The results show that SiC particles...), 11.6×10-6 K-1 and 229 MPa, respectively. Key words: Al-50%SiC composites; powder metallurgy; thermal properties; flexural strength; electronic packaging material 1 Introduction Electronic packaging......
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Preparation of doping titania antibacterial powder by ultrasonic spray pyrolysis WEI Shun-wen(韦顺文)1, PENG Bing(彭 兵)1, CHAI Li-yuan(柴立元)1, LIU Yun-chao(刘云超)1, LI Zhu-ying(李竹英)2 1. School... of the powder can be controlled by adjusting the concentration of solution. The experimental approach indicates that the size and the value of standard deviation of particle size increase from 210 nm......
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激光照射SiC纳米颗粒原位生成SiC晶须 赵剑峰1,唐陈霞1,关芳芳1 (1.南京航空航天大学机电学院,南京,210016) 摘要:以激光为热源,以SiC纳米颗粒材料为前驱体,用激光照射SiC纳米颗粒原位生长晶须.结果表明:由于激光能量输出的瞬时特性,SiC纳米颗粒受到激光的照射可瞬时生成SiC晶须.随着激光功率的提高,晶须的直径从纳米级增大到微米级.由于在激光光斑内能量呈高斯分布,光斑内不同区域的SiC颗粒的温度不同,致使生成的晶须形态在不同的区域分别呈现为团絮状,网状和棒状等.X射线衍射分析表明,激光照射SiC纳米颗粒原位生长的晶须具有很高的纯度. 关键词:材料合成与加工工艺; SiC晶须; 激光照射; SiC纳米颗粒; [全文内容正在添加中] ......
SiC颗粒增强Al-Si基复合材料的国内研究进展吴文杰,王爱琴,王荣旗,谢敬佩河南科技大学材料科学与工程学院摘 要:综述了SiC颗粒增强铝基复合材料的发展历史和制备方法,重点阐述了SiC颗粒增强Al-Si基复合材料的国内研究现状,说明了SiC颗粒增强Al-Si基复合材料的优点及存在的主要问题,展望了其发展前景.关键词:SiC颗粒;Si;Al-Si基复合材料;......
are 625-mesh black SiC powder (about 20 μm) and commercially available casting A356 alloy (containing 6.3%Si, 0.2%Mg, 0.04%Cu, 0.015%Zn, 0.037%Ni, 0.15%Fe, 0.19%Ti and 93.068%Al, mass fraction...]. Materials Science and Engineering A, 2007, 460/461: 550-560. [8] WANG H, ZHANG R, HU X. Characterization of a powder metallurgy SiC/Cu-Al composite [J]. Journal of Materials Processing Technology, 2008......