采用RigakuD/maxx射线衍射仪(XRD)进行成分分析。XRD试验电压为40 KV，步长为8°/min，测试范围为10-90°。用SIRION200场发射扫描电子显微镜(FESEM)观察了其显微结构和粒径，并用EDS进行了元素分析。STA449C同步热分析仪在30 ℃-600 ℃范围内进行10 ℃ min^-1微扫描量热(TG-DSC)分析，研究钼酸铵自还原机理。用HVS-1000数字显微硬度仪测量了烧结坯的物理特性，DE-120密度计分别遵循阿基米德原理。通过激光粒度分析仪（Mastersizer 3000）评估平均粒度。

The compositional analysis was performed by RigakuD/maxx ray diffractometer (XRD). the XRD test voltage was 40 KV with a step size of 8°/min and a test range of 10-90°. The microstructure and particle size were observed by SIRION200 field emission scanning electron microscope (FESEM) and elemental analysis was performed by EDS. 10 °C min^-1 microscanning calorimetry (TG-DSC) analysis was performed by STA449C simultaneous thermal analyzer in the range of 30 °C-600 °C to study the self-reduction mechanism of ammonium molybdate. The physical properties of the sintered billets were measured by HVS-1000 digital micro hardness tester and DE-120 densitometer followed Archimedes principle respectively. The average particle size was evaluated by a laser particle size analyzer (Mastersizer 3000).