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关注：1
2013-05-23 12:21
求翻译：This study consists of two stages. In the first stage, bronze-based break linings were produced and friction-wear properties of them were investigated. In the second stage 0.5%,1%,2% and 4% alumina (Al2O3) powders were added to the bronze-based powders and Al2O3 reinforced bronze-based break linings were produced. Fric是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
This study consists of two stages. In the first stage, bronze-based break linings were produced and friction-wear properties of them were investigated. In the second stage 0.5%,1%,2% and 4% alumina (Al2O3) powders were added to the bronze-based powders and Al2O3 reinforced bronze-based break linings were produced. Fric
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2013-05-23 12:21:38
本研究分为两个阶段。在第一阶段，休息青铜衬里和摩擦磨损性能进行了研究。在第二阶段增加了0.5％，1％，2％和4％，氧化铝（Al2O3）粉末的青铜基粉末生产和氧化铝增强青铜休息衬里。氧化铝钢筋样品的摩擦磨损性能进行了研究，并比那些纯青铜为基础的。为此，摩擦系数和磨损行为的样品进行了测试灰铸铁光盘。还确定样品的硬度和密度。样本之前和之后的烧结和磨损试样磨损表面的微观结构进行了研究，利用扫描电子显微镜（SEM）。在350mpa样品压缩和烧结温度在820℃具有最佳的摩擦磨损行为。在摩擦表面温度上升，减少样品的摩擦系数进行了观
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2013-05-23 12:23:18
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2013-05-23 12:24:58
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2013-05-23 12:26:38
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2013-05-23 12:28:18
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