Consolidation and Characterisation of Hard Metal Powders Milledunder Dichloromethane

Archives of Metallurgy and Materials

article

H.-F. Chicinaș¹  O.-D. Jucan¹  R.V. Gădălean¹  G. Conțiu¹  A. Cotai¹  C.O. Popa¹ 

[1] Technical University of Cluj-Napoca, Materials Science and Engineering Department;Gühring Romania

关键词: hard metal;    sintering;    milling;    particle;    dichloromethane;   

DOI  :  10.24425/amm.2022.137788

学科分类：物理（综合）

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

This work presents the development of a safer processing route for hard metals. Traditional processing of fine particles underorganic solvents presents significant explosion risks. The milling under dichloromethane (DCM) reduces the risks associated withfire hazards. After milling and drying, the samples have been sintered in an industrial sintering furnace under a vacuum at 1380°C.The materials’ characterisation has been done by X-ray diffraction, scanning electron microscopy, particle size analysis, opticalmicroscopy, and by magnetic measurements. The present work results reveal the powders’ appropriate properties after milling anddrying and the desired biphasic (Co-WC) phases obtained after sintering, thus proving the feasibility of such a route, therefore thediminishing of specific fire hazards.

【 授权许可】

CC BY-NC