| TiB2-Cu 体系的自蔓延高温合成及致密化 |
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| 引用本文： | 刘利,张金咏,傅正义.TiB2-Cu 体系的自蔓延高温合成及致密化[J].复合材料学报,2005,22(2):98-102. |
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| 作者姓名： | 刘利 张金咏 傅正义 |
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| 作者单位： | 1. 中国工程物理研究院流体物理研究所,冲击波与爆轰物理国家重点实验室,绵阳,621000
2. 武汉理工大学,材料复合新技术国家重点实验室,武汉,430070 |
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| 基金项目： | 国家自然科学基金，甘肃省重点实验室基金，国家重点实验室基金 |
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| 摘 要： | TiB2-Cu 系复合材料具有高强度、高导电性, 但TiB2-Cu 体系由于润湿性较差, 制备密实TiB2-Cu 系复合材料非常困难。本文中采用自蔓延高温燃烧合成技术研究了材料体系对合成过程中产物的特性(温度、燃烧速度及产物等) 的影响, 在此基础上采用自主开发的SHS/ QP 技术制备了致密的TiB2-Cu 块材, 并研究了金属添加剂的影响。研究结果表明, 在体系中添加一定的金属钼或铁, 明显改善了体系的润湿性: 钼或铁的加入使产物中金属分布更加均匀, 大大降低了产物孔隙率。同时钼的加入还明显降低了晶粒尺寸。
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| 关 键 词： | TiB2-Cu 复合材料 燃烧合成 |
| 文章编号： | 1000-3851(2005)02-0098-05 |
| 收稿时间： | 2004-03-25 |
| 修稿时间： | 2004-11-01 |
SHS AND COMPACTION OF TITANIUM DIBORIDE-Cu SYSTEM COMPOSITES |
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| LIU Li,ZHANG Jinyong,FU Zhengyi.SHS AND COMPACTION OF TITANIUM DIBORIDE-Cu SYSTEM COMPOSITES[J].Acta Materiae Compositae Sinica,2005,22(2):98-102. |
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| Authors: | LIU Li ZHANG Jinyong FU Zhengyi |
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| Affiliation: | 1. National Key Laboratory of Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621000, China;
2. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | TiB_2-Cu composite is high-electric composite with high-intensity, but the preparation of dense TiB_2-Cu composite is quite difficult because of the bad wettability of TiB_2-Cu. The influence of different materials systems on the characteristics (temperature, speed of combustion, production, etc.) of the production by SHS (Self-propagating High-temperature Synthesis) was investigated. Based on these, the SHS/QP technique was developed and used for the preparation of dense TiB_2-Cu composite. The additives of Mo and Fe improve the wettability, make the products more uniform and decrease the pore ratio and the particle size. |
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| Keywords: | TiB2-Cu |
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