| 高能球磨制备Mo-3%Cu纳米晶复合粉末特性 |
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| 引用本文： | 胡保全,白培康,程军.高能球磨制备Mo-3%Cu纳米晶复合粉末特性[J].功能材料,2011,42(Z1). |
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| 作者姓名： | 胡保全 白培康 程军 |
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| 作者单位： | 中北大学,材料科学与工程学院,山西,太原,030051 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 利用机械合金化法制备出Mo-3%Cu(质量分数,以下同)超细复合粉末,采用X射线衍射、BET氮吸附法和DTA差热分析方法对球磨后的Mo-6%Cu纳米晶复合粉的组织结构变化、表面特性和热稳定性进行了系统的研究.结果表明,高能球磨可以制取纳米晶复合粉末,晶粒内部产生很大的晶格畸变,同时球磨产生的晶体缺陷使原子扩散加快,形成Mo-Cu超饱和固溶体和扩大Mo在粘结相中的溶解度,BET氮吸附结果证实了球磨使粉末产生大量微孔,且比表面、中孔表面和孔径降低.
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| 关 键 词： | 高能球磨 机械合金化 Mo-Cu合金 纳米晶复合粉末 |
Characteristics of high energy milled Mo-3%Cu nanocomposite powders |
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| HU Bao-quan,BAI Pei-kang,CHENG Jun.Characteristics of high energy milled Mo-3%Cu nanocomposite powders[J].Journal of Functional Materials,2011,42(Z1). |
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| Authors: | HU Bao-quan BAI Pei-kang CHENG Jun |
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| Affiliation: | HU Bao-quan,BAI Pei-kang,CHENG Jun(College of Material Science and Engineering,North University of China,Taiyuan 030051,China) |
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| Abstract: | Mo-3wt%Cu ultrafine composite powder was prepared by mechanical alloying process,systematic investigeation were carried out on the structural change.Surfacial characteristic and thermal stability of the Mo-3wt%Cu high energy milled powders using a combination of X-ray powder diffraction,brunauer-emmett-teller(BET)nitrogen adsorption technique and differential thermal analysis assited by DTA.The experimental results showed that ball-milled could produce an ultrafine composite powedrs in which large lattice d... |
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| Keywords: | high energy ball milling mechanical alloying Mo-Cu alloy nanograin composite powder |
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