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Abstract：
La2Mo2O9 is expected to have an extremely low thermal conductivity. However, the α-β phase transition at 580℃ seriously affects its performance and applications. In this work, a series of La2-xGdxMo2O9 (x=0.0~0.5) solid solution was prepared by doping La2Mo2O9 with Gd2O3, and the effect of Gd3+ doping on the phase stability and thermal conductivity was investigated. The results show that the phase transition of La2Mo2O9 is effectively suppressed with the doping of Gd3+ ions. The samples show a β-phase when x≥0.2. Moreover, the thermal conductivity decreases firstly and then increases with the increase of doping content of Gd3+ ions, reaching a minimum value at x=0.2 at room temperature. The thermal conductivities of all samples are below 1 W/(m•K). © 2020, Science Press. All right reserved.
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Rare Metal Materials and Engineering
ISSN： 1002-185X
Year： 2020
Issue： 2
Volume： 49
Page： 545-549
0 . 7 0 0
JCR@2022
ESI Discipline： MATERIALS SCIENCE;
ESI HC Threshold：169
Cited Count：
WoS CC Cited Count： 0
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 8
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