Research on the sintered microspheres of high purity molybdenum powders

[摘要] The process of preparation of the sintered microspheres of high purity molybdenum powders was investigated. The results indicate that the process include spray granulation, degreasing and sintering(spray granulation- degreasing -sintering). And in the process, spray granulation is the key step of deciding the morphology and size of the powders, degreasing temperature is the important parameter to control the purity of the powder and sintering is the necessary process to control the morphology and physical properties of the final microsphere products. The higher of the sintering temperature is, the higher of the bulk density and flowability of sintered microspheres are. And the higher of the sintering temperature is, the lower of the O content of the powder is. The sintered microspheres of high purity molybdenum can be used not only in coating industry, but also in manufacturing industry of precision parts.

[发布机构] JDC Molybdenum Industry Co., Ltd, Xi'an; 710077, China^1

[效力级别] 材料工程

[关键词] Bulk density;Coating industry;Manufacturing industries;Molybdenum powder;Morphology and size;Precision parts;Sintering temperatures;Spray-granulation