称取一定量球磨后的钼粉Mo-100r和Mo-200r。采用单向液压压制粉末，压力为300 MPa，不添加成型剂。将压坯置于箱式炉中于氢气氛围下进行烧结，温度区间为1200~1600 ℃，升温速率从室温至1000 ℃为10 ℃/min，1000 ℃至1500 ℃为5 ℃/min升温，1500 ℃至1600 ℃为2 ℃/min，保温时间为2 h，降温与升温速率相同，降温至700 ℃后随炉自然冷却。用阿基米德排水法测试烧结坯的密度（钼的理论密度为10.2 g/cm³），计算其相对密度。对烧结后的样品采用维氏硬度计测试硬度，取3个点的平均值。不同转速的球磨后粉末压坯在不同温度(1300℃和1600℃)烧结后，通过线切割制成26mm *3.5mm*1.5mm的骨头状拉伸样品，打磨抛光后在万能试验机上进行拉伸试验，拉伸速率为1mm/min。取拉伸试验断裂后的样品在扫描电镜下采集断口组织形貌的SEM照片。

A certain amount of ball-milled molybdenum powders Mo-100r and Mo-200r were weighed, and the powders were pressed by unidirectional hydraulic pressure of 300 MPa without adding forming agent. The pressed billets were sintered in a chamber furnace under hydrogen atmosphere at a temperature range of 1200-1600 ℃, with a heating rate of 10 ℃/min from room temperature to 1000 ℃, 5 ℃/min from 1000 ℃ to 1500 ℃, and 2 ℃/min from 1500 ℃ to 1600 ℃, with a holding time of 2 h. The cooling rate was the same as the heating rate, and the cooling rate was 700 ℃, followed by natural cooling in the furnace. After cooling down to 700 ℃ with the natural cooling of the furnace . The density of the sintered billets was tested by Archimedes drainage method (the theoretical density of molybdenum is 10.2 g/cm³), and the relative density was calculated. The sintered samples were tested for hardness using a Vickers hardness tester and the average value of three points was taken. After sintering at different temperatures (1300°C and 1600°C) at different speeds of the ball-milled powder press billets, bone shaped tensile samples of 26 mm * 3.5 mm * 1.5 mm were made by wire cutting, polished and then subjected to tensile tests on a universal testing machine at a rate of 1 mm/min. SEM photographs of the fracture tissue morphology were taken under a scanning electron microscope after the fracture of the tensile test samples.