| 块体纳米材料的研究现状与发展思路 |
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| 引用本文： | 居志兰,戈晓岚,许晓静.块体纳米材料的研究现状与发展思路[J].江苏大学学报(自然科学版),2002,23(4):47-51. |
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| 作者姓名： | 居志兰 戈晓岚 许晓静 |
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| 作者单位： | 江苏大学机械工程学院,江苏,镇江,212013 |
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| 摘 要： | 块体纳米材料的制备技术及性能研究 ,是当前纳米材料领域内的一个热点 块体纳米材料具有奇异的结构和特殊性能 ,其在力学、电学、光学和磁学等方面发生了巨大的变化 文中较为详细地介绍了国内外块状纳米材料的制备技术 针对块体纳米材料加工过程中存在热稳定性及致密性等两个主要问题进行了探讨 ,提出了通过加入第二相微粒、强烈塑性加工措施来改善块体纳米材料的热稳定性 ;采用烧结、挤压辅助工艺来提高块体纳米材料的致密性的方案
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| 关 键 词： | 块体纳米材料 热稳定性 超塑性 强烈塑性加工 |
| 文章编号： | 1671-7775(2002)04-0047-05 |
| 修稿时间： | 2002年3月4日 |
The Study of Bulk Nanometer Materials and Its Further Development |
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| JU Zhi lan,GE Xiao? lan,XU Xiao? jing.The Study of Bulk Nanometer Materials and Its Further Development[J].Journal of Jiangsu University:Natural Science Edition,2002,23(4):47-51. |
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| Authors: | JU Zhi lan GE Xiao? lan XU Xiao? jing |
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| Abstract: | The properties of bulk nano materials and preparation technique are hot spots in the field of nanometer materials. Bulk nano material has spectacular interface structures and unique functions, and its properties are changed remarkably in mechnics, electronics, optics, magnetics and etc The main methods of producing bulk nano material are summarised in detail. The two current problems of hot stability and density in the preparation of nano materials are discussed. The methods of adding the second phase particles and hard pressing deformation to improve its hot stabilty and adopting sintering and extrusion auxiliary technologies to enhance its density are proposed. |
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| Keywords: | bulk nanometer material hot stability superplastic severe pressing deformation |
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