采用真空热压技术制备纳米金属钨块体材料

周宇松; 吴希俊; 李冰寒; 许国良

doi:10.11858/gywlxb.2000.03.011

采用真空热压技术制备纳米金属钨块体材料

doi: 10.11858/gywlxb.2000.03.011

1.
浙江大学材料系，浙江杭州 310027；
2.
中国兵器工业第52研究所宁波分所，浙江宁波 315041

详细信息

通讯作者:
周宇松

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出版历程
- 收稿日期: 1999-09-21
- 修回日期: 1999-12-30
- 发布日期: 2000-09-05

Synthesis of Bulk Samples of Nanorystalline Tungsten

1.
Department of Materials and Engineering, Zhejiang University, Hangzhou 310027, China;
2.
No.52 Research Institute of China Ordnance Industry, Ningbo 315041, China

More Information

Corresponding author: ZHOU Yu-Song

摘要

摘要: 采用真空热压技术，在570 ℃和1 GPa的条件下成功制备具有单相-W结构、平均晶粒尺寸为34 nm、尺寸为10 mm1 mm的难熔金属钨纳米块体材料，其密度为理论密度的88.8%，显微硬度为4.8 GPa。纳米金属钨的密度和显微硬度随热压温度、热压压强和热压时间增大而升高。
- 纳米金属钨 /
- 真空热压 /
- 显微硬度
Abstract: The bulk nanocrystalline samples of the refractory metal tungsten (nano-W), with -phase tungsten and an average grain size of 34 nm, were synthesized using vacuum hot pressing technique under the pressure of 1 GPa and temperature of 570 ℃. The dimensions, density and microhardness of the nano-W are 10 mm1 mm, 88.8% of the theoretical density and 4.8 GPa, respectively. The density and microhardness of nano-W increase with pressure, temperature and time.
- nanocrystalline tungsten /
- vacuum hot pressing /
- microhardness

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参考文献(9)

Rick G D. Tungsten Its Compound [M]. Pergmon: Oxford, 1967: 2.

叶帷洪, 王崇敬. 钨-资源, 冶金, 性质和应用 [M]. 罗英浩, 阮允翔, 何瓞祺译. 北京: 冶金工业出版社, 1983: 490.

吕大铭. 粉末冶金钨钼材料发展的国内外近况 [J]. 粉末冶金工业, 1997, 7(3): 40-43.

Zima G E, Lakner J F. High Pressure Consolidation of Submicron Tungsten [J]. Inter J Powder Met, 1966, 2(3): 49- 57.

Zima G E, Lakner J F. An Analysis of Pressure-Temperature Influence in Tungsten Consolidation [J]. Inter J Powder Met, 1968, 4(2): 19-32.

Vashi U K, Armstrong R W, Zima G E. The Hardness and Grain Size of Consolidated Fine Tungsten Powder [J]. Metall Trans, 1970, 1(6): 1769-1771.

Fougere G E, Weertman J R, Siegel R W. Processing and Mechanical Behavior of Nanocrystalline Fe [J]. Nanostructured Mater, 1995, 5(2): 127-134.

Sanders P G, Weertman J R, Barker J G. Structure of Nanocrystalline Palladium and Copper Studied by Small Angle Neutron Scattering [J]. J Mater Res, 1996, 11(12): 3110-3120.

Wu X J, Du L G, Zhang H F, et al. Synthesis and Tensile Property of Nanocrystalline Metal Copper [J]. Nanostructured Mater, 1999, 12: 221-224.

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