Low thermal expansion behavior and transport properties of Ni and Ge co-doped manganese nitride materials at cryogenic temperatures
Low thermal expansion behavior and transport properties of Ni and Ge co-doped manganese nitride materials at cryogenic temperatures
复制标题
Ni、Ge共掺杂氮化锰材料在低温下的低热膨胀行为和输运特性
DOI:
10.1007/s00339-010-5547-x
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发表时间:
2010-01
期刊:
影响因子:
--
通讯作者:
Xu, Xiangdong
中科院分区:
文献类型:
--
作者:
Huang, Rongjin;Chu, Xinxin;Wu, Zhixiong;Li, Laifeng;Xu, Xiangdong
A series of Ni and Ge co-doped manganese nitride materials were fabricated by mechanical ball milling followed by solid-state sintering. Their thermal expansion properties and electrical and thermal conductivities were investigated in the temperature range of 77–300 K. The results show that Ni and Ge co-doped manganese nitride materials have negative thermal expansion (NTE), and the operation-temperature window of NTE shifts toward the lower temperature region and the variation of linear thermal expansion (ΔL/L(300K)) in the operation-temperature window of NTE decreases with increasing Ni content. The combination of these two factors results in a low coefficient of thermal expansion (CTE) at cryogenic temperatures. The average CTE of Mn3(Cu0.2Ni0.4Ge0.4)N drops to ‘zero’ in the temperature range of 190–77 K. The values of electrical and thermal conductivities of the Ni and Ge co-doped manganese nitride materials are in the ranges of 2–3×103(ohm cm)−1and 1.6–3.4 W (m K)−1, respectively.
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影响因子:
4
作者:
Ying Sun;Cong Wang;Yongchun Wen;K. Zhu;Jingtai Zhao
通讯作者:
Ying Sun;Cong Wang;Yongchun Wen;K. Zhu;Jingtai Zhao
影响因子:
1.7
作者:
FRUCHART, D;BERTAUT, EF
通讯作者:
BERTAUT, EF
影响因子:
3.9
作者:
Y. Peng;D. Day
通讯作者:
Y. Peng;D. Day
影响因子:
4
作者:
Takenaka, K.;Asano, K.;Takagi, H.
通讯作者:
Takagi, H.
影响因子:
4
作者:
Takenaka, K;Takagi, H
通讯作者:
Takagi, H