90°弯管磁过滤阴极弧沉积类金刚石膜的特性分析

材料科学与工艺, 2007, 15(4): 537-540. doi: 10.3969/j.issn.1005-0299.2007.04.025

90°弯管磁过滤阴极弧沉积类金刚石膜的特性分析

柳翠 ^1, , 李国卿 ^2, , 苟伟 ^3, , 王丽阁 ^4, , 张成武 ^5, , ^6, , ^7,

1.大连理工大学,三束材料改性国家重点实验室,辽宁,大连,116024

2.大连理工大学,三束材料改性国家重点实验室,辽宁,大连,116024

3.大连理工大学,三束材料改性国家重点实验室,辽宁,大连,116024

4.大连理工大学,三束材料改性国家重点实验室,辽宁,大连,116024

5.大连理工大学,三束材料改性国家重点实验室,辽宁,大连,116024

6.Korea Institute of Machinery and Materials,Changwon,Kyungnam,Korea,641-010

7.Korea Institute of Machinery and Materials,Changwon,Kyungnam,Korea,641-010

基金项目: 国家高技术研究发展计划(863计划)(2001AA338010)

关键词：铸造 , 镁硅合金 , 显微组织 , 阻尼性能 , 阻尼机理

Characterization of diamond-like carbon film prepared by 90°bend toroidal duct magnetic filtered cathodic arc

利用动态机械热分析仪研究了四种镁硅合金的阻尼性能.研究表明:铸造镁硅合金具有良好的阻尼性能.并且体现出有别于纯镁的新阻尼特征,铸造镁硅合金具有较纯镁在更大应变振幅范围内的弛豫型内耗.由于Mg2 Si对晶界的钉扎作用,界面阻尼峰出现在较纯镁更高的温度.少量钙的添加改善了Mg2 Si析出的形态,但对阻尼性能的影响似乎不明显.

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