用高压烧结法对水热法制备的Bi2Te3纳米线及纳米颗粒粉体进行了压制成型,并与真空热压法制备的样品进行了形貌和热电性能的比较.研究表明,高压烧结样品内的晶粒尺寸明显小于热压样品.热电性能的研究表明,高压烧结样品的电阻率、赛贝克系数和热导率均优于真空热压样品.由纳米线粉体高压烧结的样品其热电优值ZT在室温时达到了0.5,高于真空热压样品的值,表明高压烧结是热电材料纳米粉体成型的一种有效方法. The Bi2Te3 nanowires and nanoparticle powders prepared by hydrothermal method were pressed by high pressure sintering method and the morphology and thermoelectric properties of Bi2Te3 powders prepared by vacuum hot pressing were compared.The results show that The grain size is significantly smaller than that of the hot-pressed sample.The results of the thermoelectric properties show that the resistivity, the Seebeck coefficient and the thermal conductivity of the high-pressure sintered sample are better than those of the vacuum hot- ZT reached 0.5 at room temperature, higher than the value of vacuum hot pressing samples, indicating that high pressure sintering is an effective method for forming nano-powder of thermoelectric materials.