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in reversible capacity upon cycling[2-3]. To improve the volume mismatch, many methods were used. LI et al[11] reported that nano-SnO2 fiber may absorb the volume changes in cycling to keep good cyclability even at high current rate. SnO2 thin film was also used to decrease the volume change[9, 12]. Metal composite oxides MxSnyOz (M=Ni, Ca, Fe, Sb, Cu, Mg, Zn, etc) were also proposed to improve......
. Synthesis of Si, Mg substituted hydroxyapatites and their sintering behaviors [J]. Biomaterials, 2003, 24(8): 1389-1398. [13] Letellier r s, Lochhead m j, Campbell a a. Oriented growth of calcium... in clinic. However the application of NiTi and 316L is limited by the potential health hazard owing to the release of Ni and Cr ions[1]. Titanium alloy, which has extensively served as substitute......
mechanically induced self-propagating reaction(MSR)[13]. The MSR was often observed in highly exothermic system, such as Ni-Al, Mo-Si, Nb-C. After the MSR, the XRD diffraction peaks of the reaction products...] Lü L, Lai m o, Su y, TEO H L, FENG J L. In situ TiB2 reinforced Al alloy composites [J]. Scripta Mater, 2001, 45(9): 1017-1023. [3] Radev D D, Marinov M. Properties of titanium and zirconium......
W M. Anderson.Reliability considerations for ESD protection under wire bonding pads [J]. Microelectronics Journal, 2001, 41: 367-373. [6] HU S J, LIM G E, FOONG K P, et al. Study of temperature..., WACHUTKA G. Reliability model for Al wire bonds subjected to heel crack failures [J]. Microelectronics Reliability, 2000, 40(8): 1521-1525. [9] HOU Zeng-shou, LU Guang-xu. Principles of Metallography......
strength An aluminum alloy LY-12 was used as adherend, the sample was fed with WD-10A feeding machine. The value of shear strength was collected according to the GB7124-86 standard. 2.3.2 Surface... There are two different groups in the molecular structure. One is inorganophilic siloxane, and the other is organophilic γ-aminopropyl triethoxy(Y). The inorganophilic group becomes Y-Si-(OH)3 after hydrolysis......
circuit breakers. At present the preparation techniques for AgSnO2 contact material mainly are powder metallurgical process and alloy internal oxidation process. Besides the above processes...-based contact materials for air-break switching devices for power engineering[J]. IEEE Trans on Comp Hybrids and Manuf Tech, 1989, 12(1): 71-81. [4] LIU Hai-ying, WANG Ya-ping, DING Bing-jun, et al......
Preparation of Ni paste Ni-Cr alloy has excellent anti-oxidant capacity, for a long time it is used as thermoelectric material, and its highest service temperature is as high as 1 350 ℃, having the potential......
E J. Mechanical behavior and microstructure of a thermally stable bulk nanostructured Al alloy [J]. Metallurgical and Materials Transactions A, 2001, 32(9): 2335-2343. [6] VALIEV R Z, ISLAMGALIEV R... of strain. WEETMAN et al[19-21] have taken NC materials with the inert gas condensation technique to investigate the effect of porosity on the mechanical behavior of NC materials, but they do not take......
of automobiles, and it has several fine holes to be able to flow refrigerant in the section. The materials of harmonica-shaped tube are mainly Al or Cu alloys that have good heat transfer efficiency... the values of stress and strain rate from the data base. Al 1050 was chose as material for condenser tube used in simulation. The relationship between flow stress and strain for Al1050 at temperatures......
thin-wall parts and molds with a wide choice of materials, such high melting-point metal, alloy or ceramic materials[1-2]. Thereby, it has become an important research trend internationally[3]. Many... and velocity were calculated by ROISMAN et al[16]. The effect of the relative location of the impact point on the interaction between the two droplets was studied. When the distance between the centers......