以溶液燃烧结合氢还原制备的掺杂钨粉。偏钨酸铵、硝酸铵、甘氨酸的浓度分别为0.01 M、0.24 M和0.1 M，硝酸镧的浓度分别为0 M、0.00068 M、0.00136 M、0.00275 M和0.00714 M以制备氧化镧掺杂量分别为0wt%、0.5 wt %、1 wt %、2 wt %、5 wt %的样品（分别标为PW、WL05、WL10、WL20、WL50）。偏钨酸铵原料首先溶解在去离子水中，将所制备的溶液加热，直到燃烧得前驱物，进SEM表征。WL20和WL50随后研磨，在不同温度（450、500、550、600、650、700、750、800、850℃）在流动氢气中还原2小时，得到掺杂钨粉末，进行xrd测试。PW、WL05、WL10、WL20、WL50在700 MPa的单轴压力下压成坯体，然后在钨丝炉中在氢气流动下烧结，烧结温度1650℃，烧结时间2小时，升温速率5℃/min，进行SEM检测。

The doped tungsten powder was prepared by solution combustion combined with hydrogen reduction. Ammonium paratungstate, ammonium nitrate, and glycine were used at concentrations of 0.01 M, 0.24 M, and 0.1 M, respectively, and lanthanum nitrate was used at concentrations of 0 M, 0.00068 M, 0.00136 M, 0.00275 M, and 0.00714 M to prepare samples with lanthanum oxide doping amounts of 0 wt %, 0.5 wt %, 1 wt %, 2 wt %, and 5 wt %, respectively (labeled as PW , WL05, WL10, WL20, WL50). The ammonium metatungstate raw material was first dissolved in deionized water and the prepared solution was heated until combustion to obtain precursors for SEM characterization. WL20 and WL50 were subsequently ground and reduced in flowing hydrogen at different temperatures (450, 500, 550, 600, 650, 700, 750, 800, 850 °C) for 2 h to obtain doped tungsten powder for xrd test. PW, WL05, WL10, WL20, and WL50 were pressed into blanks under uniaxial pressure of 700 MPa and then sintered in a tungsten furnace under flowing hydrogen at a sintering temperature of 1650°C, a sintering time of 2 h, and a heating rate of 5°C/min for SEM testing.