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吴爱民
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副教授   博士生导师   硕士生导师

任职 : 辽宁省能源材料及器件重点实验室副主任

性别: 男

毕业院校: 大连理工大学

学位: 博士

所在单位: 材料科学与工程学院

学科: 材料物理与化学. 材料表面工程

办公地点: 新三束4#楼311室

联系方式: 0411-84706661-101

电子邮箱: aimin@dlut.edu.cn

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Influence of boron contents on properties of AlMgB films prepared by RF magnetron sputtering

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论文类型: 期刊论文

发表时间: 2012-04-01

发表刊物: RARE METALS

收录刊物: SCIE、EI

卷号: 31

期号: 2

页面范围: 164-167

ISSN号: 1001-0521

关键字: AlMgB; magnetron sputtering; elemental content; properties

摘要: Ternary AlMgB thin films were synthesized on silicon (100) substrate at 573 K by radio frequency (RF) magnetron sputtering method using one Al/Mg co-target and one boron target. The thickness of the as-deposited thin film was controlled to 500 nm by adjusting deposition time. The influences of sputtering powers on the elemental contents and structural and mechanical properties were investigated by electron probe microanalysis (EPMA), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), and nanoindentation system. At the same time, the ball-on-disk tribometer was used to measure the friction behavior of the films. Experimental results indicate that the as-deposited boron-rich films are primarily amorphous structure and possess a dramatic high hardness up to 39 GPa with 99.03 at.% boron. Obviously, it has exceeded the hardness value of 32 GPa of pure AlMgB14 bulk material prepared by sintering method. Furthermore, the friction coefficients of the thin films exhibit an average value as low as 0.3, which is considered as the effect of self-lubricating.

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