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of SnAgCu soldering[J]. The Chinese Journal of Nonferrous Metals, 2012, 22(2): 460-464. [2] LEJUSTE C, HODAJ F, PETIT L. Solid state interaction between a Sn-Ag-Cu-In solder alloy and Cu substrate[J...: Materials in Electronics, 2007, 18(1/3): 93-119. [7] TSAO L C. Suppressing effect of 0.5wt.% nano-TiO2 addition into Sn-3.5Ag-0.5Cu solder alloy on the intermetallic growth with Cu substrate during......
文章编号:1004-0609(2015)-07-1937-06 电磁压制多元金属混合粉末的压型方程 高 歌1,胡建华1,程 呈1,吴 轩1,张 达2 (1. 武汉理工大学 材料科学与工程学院,武汉 430070; 2. 武汉山力板带技术工程有限公司 工程管理,武汉 430074) 摘 要:针对Ag-Cu-Zn-Sn系多元金属混合粉料制备无镉中温银基钎料进行研究,探索压坯密度与压制压力,压制模量及压制速率的关系.采取理论分析,工艺实验和软件拟合曲线相结合的方法,构建了电磁压制条件下的高速率压型方程,为电磁压制工艺的数值模拟分析提供数学模型和相应的参数,提高数值仿真的准确性和可靠性.该结果为Ag-Cu-Zn-Sn系多元金属混合粉料进行合理的电磁压制工艺设计提供一定的理论价值和工程实践指导 意义. 关键词:电磁压制;金属粉末;压型方程......
of anodic and cathodic zones during the dissolution of minerals. Moreover, AZIZI et al [8] examined the passive behavior of gold ore and concluded that all minerals directly affected the leaching of gold... alloy in NaCl solutions [C]//SHAW B A, BUCHHEIT R G, MORAN J P. Corrosion and Corrosion Prevention of Low Density Metals and Alloys. Pennington, NJ: The Electrochemical Society, Inc, 2001: 364-375......
文章编号:1004-0609(2015)-11-3119-07 Sn-Ag-Cu无铅球栅阵列焊点塑性表征 杨淼森1, 2,孙凤莲1,孔祥霞1,周云芳1 (1. 哈尔滨理工大学 材料科学与工程学院,哈尔滨 150080; 2. 哈尔滨职业技术学院 机械工程学院,哈尔滨 150081) 摘 要:通过纳米压痕的方法,采用塑性应变与总应变的比值表征塑性,对... and performance of Sn-Ag-Cu lead-free BGA solder joint YANG Miao-sen1, 2, SUN Feng-lian1, KONG Xiang-xia1, ZHOU Yun-fang1 (1. School of Material Science and Engineering, Harbin University of Technology, Harbin......
curve of BaMoO4 nanostructures which was calculated from their UV–visible absorbance using the equation proposed by THONGTEM et al [29]: αhυ=(hυ-Eg)n  ... of crystallized Ba1-xSrxMoO4 solid-solution films at room-temperature [J]. J Alloy Compd, 2001, 316: 250-255. [14] MI Y, HUANG Z Y, HU F L, LI X Y. Room temperature reverse-microemulsion synthesis......
are the same as those of the analyzing ring resonator, Table 1. The ring type resonator of the prototypal gyroscope is made of constant elastic alloy such as Ni42CrTi and Ni-SPAN-С Alloy 902 in order...] HOPKIN I D, FELL C P, TOWNSEND K, et al. Vibrating Structure gyroscope: US, 5932804 [P]. 1999. [6] DRIESEN W, BERGANDER A, VARIDEL T, BREGUET J M. Energy consumption of piezoelectric actuators......
to gaseous chromium species resulting from stainless steel interconnects [4-6]. Many researchers have reported that the reaction between Mn or Sr in lanthanum strontium manganite (LSM) and lanthanum strontium..., Japan) with Ni-filtered Cu Kα radiation. The microstructure of the cathode was observed by a field emission scanning electron microscope (FE-SEM, S-3200, Philips). The electrochemical performance......
) Ti3SiC2试样经阳极氧化后除含有Ti,Si,C元素外,还含有O元素,且其以TiO2的形态存在. REFERENCES [1] ZWILLING V, AUCOUTURIER M, DARQUE-CERETTI E. Anodic oxidation of titanium and TA6V alloy in chromic media[J]. Electrochimica Acta... voltage on performance anodic oxidation films of TiO2 on TC4 alloy[J]. Chinese Journal of Materials Research, 2015, 29(12): 895-903. [18] ZHAO Jian-ling, XU Rong-qing, WANG Xi-xin, LI Yang-xian. In situ......
the irregularity of the pore structure and investigated the geometric mean model. Archie’s law [13] proposed an empirical equation with the viscosity index. ZHU et al [14] studied the thermal conductivity of closed-cell aluminum foam based on the 3D geometrical reconstruction, and discovered that the thermal conductivity depends on both of the porosity and the size of pores. WANG et al [15......
International, 2009, 35(4): 1461-1466. [5] KENNEDY A R. The microstructure and mechanical properties of Al-Si-B4C metal matrix composites [J]. Journal of Material Science, 2002, 37(2): 317-323. [6] ALIZADEH A, TAHERI-NASSAAJ E, HAJIZAMANI M. Hot extrusion process effect on mechanical behavior of stir cast al based composites reinforced with mechanically milled B4C nanoparticles [J]. Jornal of Mater......