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原位生长纳米炭纤维/硅复合材料及其储锂性能

刘鸿鹏 , 乔文明 , 詹亮 , 凌立成

新型炭材料 doi:10.1016/S1872-5805(08)60042-6

采用催化化学气相沉积法在微米硅颗粒表面原位生长纳米炭纤维得到纳米炭纤维/硅复合材料.利用SEM,TEM和XRD表征了复合材料的表面形态和微观结构,并考察了其作为锂离子电池负极材料的循环性能.电化学测试表明:与纳米纤维/硅机械混合物相比,原位生长纳米炭纤维/硅复合材料具有更高的可逆容量(1042mAh...

关键词: 锂离子电池 , 负极材料 , 纳米炭纤维 ,

Effect Of Silicon Addition On Recrystallization And Phase Transformation Behavior Of High-Strength Hot-Rolled Trip Steel

L.J. Zhu

金属学报(英文版)

Because Si is a noncarbide forming element, a multiphase microstructure consisting of ferrite, bainite, and retained austenite, at room temperature, can be formed by controlling the thermomechanical process strictly. The cooling schedules must be restricted by the formation of pearlite and cementite...

关键词: TRIP steel , null , null , null , null

Microstructure Features with Ultrafined and Purified Grains for Si-Mn Hot-rolling TRIP Steel

Yu CHEN

材料科学技术(英文)

strength of 775 MPa, high elongation of 29% and low ductile-brittle transmission temperature less than -80℃ has been developed in laboratory based on the common silicon and manganese chemical composition. The experimental results showed that the microstructures were featured with ultra fine grain si...

关键词: Ultra fine grain , null , null , null , null

High Strength Silicon Carbide Foams and Their Deformation Behavior

Chong TIAN

材料科学技术(英文)

Silicon carbide (SiC) foams with a continuously connected open-cell structure were prepared and characterized for their mechanical performance. The apparent densities of SiC foams were controlled between about 0.4 and 1.3 g/cm3, with corresponding compressive strengths ranging from about 13 to 60 MP...

关键词: Silicon carbide foams , carbide , foams , Apparent , density , S

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