以偏钨酸铵和硝酸钇为原料，采用溶胶-喷雾干燥-热还原制备了纳米W-Y₂O₃复合粉末，然后经模压成形制备出“工”字型拉伸样、1800-2000℃烧结制备出高性能钨合金试样。试样表面抛光打磨后在数字显微硬度测试 (HXD-1000T)进行维氏显微硬度测试，在 200 g 的最大负载和 15s的停留时间下进行测试使用，抗拉强度由力学表征试验机完成（LJ-3000A）。粉末和烧结材料扫描电镜（SEM、JSM-6360LV、JEOL）、透射电子显微镜（TEM，JEM-2100F）等进行表征分析。粉末相组成通过 X 射线衍射仪（D/max 2550，Cu-Ka 辐射）表征、粉末氧含量通过氮/氧/氢测定 (TCH-600, LECO)，粉末粒径使用BET 表面积分析仪检测（Autosorb-1、Quantachrome）。

The nano-W-Y₂O₃ composite powder was prepared from ammonium metatungstate and yttrium nitrate by sol-gel spray drying and thermal reduction, and then the "I" shaped tensile specimens were molded and sintered at 1800-2000°C to produce high performance tungsten alloy specimens. The surface of the specimens was polished and polished, and the Vickers microhardness was tested on a digital microhardness tester (HXD-1000T) at a maximum load of 200 g and a dwell time of 15 s. The tensile strength was measured by a mechanical characterization tester (LJ-3000A). Powder and sintered materials were characterized by scanning electron microscopy (SEM, JSM-6360LV, JEOL), transmission electron microscopy (TEM, JEM-2100F), and other characterization analyses. Powder phase composition was characterized by X-ray diffractometer (D/max 2550, Cu-Ka radiation), powder oxygen content was determined by nitrogen/oxygen/hydrogen (TCH-600, LECO), and powder particle size was examined by BET surface area analyzer (Autosorb-1, Quantachrome).