采用金堆城钼业股份有限公司提供的常规粒度（纯度大于99.95％，直径约3.5 μm）纯钼粉，经还原后在YT79-500液压机对钼粉进行180 MPa冷等静压成坯，随后在中频氢气气氛烧结炉内进行固相分段式烧结，烧结温度为1800°C。将制得的烧结坯经线切割，获得尺寸为8×12 mm的圆柱形试样，经过端面打磨以保证良好接触摩擦条件。经加热炉加热后进行单道次热压缩测试，应变量均为60%。采用Quanta 250FEG 场发射扫描电子显微镜观察压缩后的显微组织。

The pure molybdenum powder with conventional particle size (purity greater than 99.95%, diameter about 3.5 μm) provided by Jinduicheng Molybdenum Industry Co., Ltd. was used to perform 180 MPa cold isostatic pressing of the molybdenum powder into a compact after reduction in a YT79-500 hydraulic press, and then The solid phase sintering is carried out in an intermediate frequency hydrogen atmosphere sintering furnace, and the sintering temperature is 1800°C. The prepared sintered billet was cut by wire to obtain a cylindrical sample with a size of 8×12 mm, and the end surface was polished to ensure good contact friction conditions. After heating by the heating furnace, a single-pass thermal compression test is performed, and the strain amount is 60%. A Quanta 250FEG field emission scanning electron microscope was used to observe the compressed microstructure.