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alloying; supersaturated solid solution; Cu-C system 1 Introduction Many works have been carried out to check the possibility of replacing silver by copper in electronic contacts application, in which... on the results of X-ray diffractometer(XRD), transmission electron microscopy(TEM) and scanning electron microscopy(SEM) examinations of the microstructure characteristics in Cu-C system by MA. 2......
C含量对间隙固溶Cu-C薄膜微结构,硬度及电阻率的影响付彦鹏1,尚海龙2,马冰洋2,李荣斌1,2,3,冉准21. 上海理工大学材料科学与工程学院2. 上海电机学院材料学院3. 上海电机学院上海大件热制造工程技术研究中心摘 要:采用双靶磁控共溅射方法制备了一系列不同C含量的Cu-C薄膜,采用X射线衍射仪,透射电子显微镜,纳米压痕仪和四探针电阻仪表征了薄膜微结构,力学性能及其电阻率.结果表明:在溅射粒子高分散性和薄膜生长非平衡性的共同作用下,Cu-C薄膜形成过饱和间隙固溶体.剧烈的晶格畸变使薄膜的晶粒细化,其硬度相应提高.随着C含量的增加,薄膜的硬度逐渐提高,当C含量为8.2 at.%时,由纯Cu薄膜硬度2.8GPa提高到4.3 GPa.与此同时,薄膜电阻率仅由纯Cu薄膜的2.0μΩ·cm到提高到......
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) Ag0.90Si0.10-Au; (c) Au0.50- Si0.50-Ag, Au0.60Si0.40-Ag and Au0.80Si0.20-Ag Fig.8 Calculated liquidus projection of Au-Ag-Si ternary system in this work Enthalpies of mixing of the ternary...]. C R Hebd Séances Acad Sci, 1908, 147: 859-861. [15] HAGER J P. Thermodynamic properties of the silver-silicon system [J]. Trans Metal Soc AIME, 1963, 227: 1000-1002. [16] MOURON P, VUILLARD G......
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for the design of engine control units (ECU). Together with a proportional-integral controller, a feed-forward and feedback control scheme is often adopted for automotive engine management system (EMS... cruise system of automotive engine. The results show that the tracking of engine speed command and the regulation of air/fuel ratio (AFR) can be achieved simultaneously under the new scheme. The mean......
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properties and the classification of solution [J]. Indust Eng Chem, 1948, 40: 345-348. [40] FENG Y, WANG R C, LIU H S, JJIN Z P. Thermodynamic reassessment of the magnesium-gallium system [J]. J... Thermodynamic assessment of Mg-Ga binary system MENG Fan-gui(孟凡桂)1, WANG Jiang(王 江)2, 3, RONG Mao-hua(戎茂华)4, LIU Li-bin(刘立斌)2, JIN Zhan-peng(金展鹏)2 1. School of Materials Science and Engineering......