中文摘要：

关于 VO2 的热传导性的以前的报告越过金属绝缘体转变(MIT ) 显示出各种各样的温度依赖温度。在这个工作，多晶的 VO2 样品被 VO2 粉末的火花血浆 sintering 制作。他们的热传导性的温度依赖用激光闪光技术被调查，并且热传导性从金属阶段显示出一个重要减少趋势到绝缘体阶段。电的运输性质被调查证实到热传导性的搬运人和格子贡献。这被发现格子热电导率越过 MIT 点显著地减少了，它可以被软声子模式在 VO2 的金属阶段引起。

英文摘要：

Previous reports about the thermal conductivities of VO2 showed various temperature dependences across metal-insulator transi- tion （MIT） temperature. In this work, polycrystalline VO2 samples were fabricated by spark plasma sintering of VO2 powder. Temperature dependences of their thermal conductivities were investigated using laser flash technique, and the thermal conductiv- ity showed a significant decrease trend from metal-phase to insulator phase. Electrical transport properties were investigated to confirm both carrier and lattice contribution to the thermal conductivity. It is found that the lattice thermal conductivity decreased significantly across MIT point, which may be caused by soft phonon mode in metal phase of VO2.