| 高能球磨纳米镍粉制备块体材料的研究 |
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| 引用本文： | 巴志新,路承杰,戴玉明.高能球磨纳米镍粉制备块体材料的研究[J].南京工程学院学报(自然科学版),2007,5(3):40-44. |
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| 作者姓名： | 巴志新 路承杰 戴玉明 |
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| 作者单位： | 1. 南京工程学院材料工程学院,江苏,南京,211167
2. 南京工业大学材料科学与工程学院,江苏,南京,210009 |
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| 基金项目： | 南京工程学院科研基金项目“块体纳米材料制备及力学性能研究”(KXJ0610) |
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| 摘 要： | 采用高能球磨法制备了纳米晶Ni粉末,对纳米晶粉末进行预压烧结,获得纳米晶镍块体材料.采用显微分析方法研究了纳米晶粉末和块体材料的显微组织结构.试验结果表明,高能球磨所得镍粉平均晶粒尺寸为10 nm;预压烧结块体的平均晶粒尺寸在100 nm以下;块体相对致密度在烧结温度为0.6Tm时达到最大值.
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| 关 键 词： | 纳米块体 高能球磨 镍 |
| 文章编号： | 1672-2558（2007）03-0040-05 |
| 收稿时间： | 2007-04-03 |
| 修稿时间： | 2007-09-03 |
Study on Bulk Nanocrystalline Ni Prepared by High Energy Ball Milling |
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| BA Zhi-xin,LU Cheng-jie,DAI Yu-ming.Study on Bulk Nanocrystalline Ni Prepared by High Energy Ball Milling[J].Journal of Nanjing Institute of Technology :Natural Science Edition,2007,5(3):40-44. |
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| Authors: | BA Zhi-xin LU Cheng-jie DAI Yu-ming |
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| Abstract: | Nanocrystalline Ni powder was produced by utilizing high energy ball milling and then sintered into Nanocrystalline Nickel bulk materials. Microstructure investigations were carried out to examine the structure of nanocrystalline powder and bulk. The results corroborate that the average grain size of the high energy ball milled Ni powder is 10 nm; pre-pressure sintering block in average grain size is less than 100 nm; bulk density relative to the sintering temperature reaches its maximum value at 0.6Tm. |
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| Keywords: | bulk nanocrystalline high energy ball milling Ni |
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