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文摘
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通过直接对Bi-Pb-Sn-Cd四元块状合金进行超声分散制备了相应的四元合金纳米微粒;采用X射线衍射仪和热分析仪分析所制备的纳米微粒结构;采用透射电子显微镜考察了纳米颗粒的形貌及尺寸分布;采用四球摩擦磨损试验机考察了纳米颗粒的摩擦学性能.结果表明,所制备的纳米颗粒为低熔点共晶合金纳米微粒,颗粒平均尺寸在10～20 nm之间,其作为润滑油添加剂表现出良好的摩擦学性能. |
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其他语种文摘
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Bi-Pb-Sn-Cd nanoalloy particles were prepared using sonochemical dispersion method. The morphology, size, and phase composition of the nanoparticles were analyzed by means of X-ray diffraction, differential thermal analysis and thermogravimetric analysis (DTA-TG), and transmission electron microscopy (TEM). The tribological properties of the nanoparticles as an additve in liquid paraffin were evaluated using a four-ball test rig, while the worn steel surface was observed using a scanning electron microscope. It was found that the as-prepared nanoalloy particles had good dispersing ability and composed of spherical crystallines with a size of 10~20 nm. The nanoparticles as the additive in liquid paraffin showed good friction-reducing and antiwear abilities and hence could be used as a good lubricating oil additive. |
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来源
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摩擦学学报
,2005,25(2):169-172 【核心库】
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关键词
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Bi-Pb-Sn-Cd四元合金
;
纳米微粒
;
超声分散
;
摩擦磨损性能
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地址
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1.
河南大学, 河南省省部共建特种功能材料教育部重点实验室, 河南, 开封, 475001
2.
河南大学, 特种功能材料重点实验室;;固体润滑国家重点实验室, 河南, 开封, 475001
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语种
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中文 |
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ISSN
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1004-0595 |
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学科
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化学;机械、仪表工业 |
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基金
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国家863计划
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文献收藏号
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CSCD:1925189
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