| Mn3(Cu0.6Si0.15Ge0.25)N/Ag复合材料的负热膨胀与物理性能 |
| |
| 引用本文： | 左晶晶,黄荣进,陈振,韩叶茂,郑立允.Mn3(Cu0.6Si0.15Ge0.25)N/Ag复合材料的负热膨胀与物理性能[J].河北工程大学学报,2012,29(4):93-97. |
| |
| 作者姓名： | 左晶晶 黄荣进 陈振 韩叶茂 郑立允 |
| |
| 作者单位： | 河北工程大学,中国科学院理化技术研究所,中国科学院理化技术研究所,中国科学院理化技术研究所 |
| |
| 基金项目： | 国家自然科学基金(10904153)中国博士后科学基金（20080430583） |
| |
| 摘 要： | 采用机械球磨加固相烧结法合成Mn3(Cu0.6Si0.15Ge0.25)N/Ag复合材料。在77K-300K温度范围内，分别研究了Mn3(Cu0.6Si0.15Ge0.25)N/Ag复合材料的热膨胀性能，电导性能和热导性能。当含Ag量分别为1,5,10和20 wt%时，所有样品在有效的温度区间205K-275K表现出负热膨胀。随着Ag含量的增加，有效温度区间向室温方向移动。另外，和Mn3(Cu0.6Si0.15Ge0.25)N材料相比，Mn3(Cu0.6Si0.15Ge0.25)N/Ag复合材料具有更高的电导率1?0-6（Ohm.m）-1和热导率10.5W/(mK)。
|
| 关 键 词： | 负热膨胀，导电性，导热性 |
| 收稿时间： | 9/2/2012 12:00:00 AM |
| 修稿时间： | 9/3/2012 12:00:00 AM |
Negative thermal expansion and transport properties of Mn3(Cu0.6Si0.15Ge0.25)N/Ag composites |
| |
| Authors: | Zuo Jing-jing Huang Rong-jin Chen Zhen Han Ye-mao and Zheng Li-yun |
| |
| Affiliation: | School of Mechanical and Electrical Engineering,Hebei University of Engineering,056038 Hebei Handan,China;Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,100190 Beijing,China;Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,100190 Beijing,China;Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,100190 Beijing,China;School of Mechanical and Electrical Engineering,Hebei University of Engineering,056038 Hebei Handan,China |
| |
| Abstract: | Mn3(Cu0.6Si0.15Ge0.25)N/Ag composites were prepared by mechanical ball milling and solid state sintering. The thermal expansion coefficients, electrical conductivities and thermal conductivities of Mn3(Cu0.6Si0.15Ge0.25)N/Ag composites were studied in the temperature range from 77 K to 300 K. All samples with Ag amount of 1, 5, 10 and 20 wt% show negative thermal expansion (NTE) within an effective temperature range from 205 K to 275 K. It is interesting to find that the effective temperature range of NTE moves toward room temperature and becomes narrower with the increase of Ag content. Furthermore, Mn3(Cu0.6Si0.15Ge0.25)N/Ag composite exhibits a higher electrical conductivity of 1 106(Ohm.m)-1 and thermal conductivity of 10.5 W/(mK) than that of Mn3(Cu0.6Si0.15Ge0.25)N. |
| |
| Keywords: | negative thermal expansion electrical conductivity thermal conductivity |
|
| 点击此处可从《河北工程大学学报》浏览原始摘要信息 |
|
点击此处可从《河北工程大学学报》下载全文 |
|
