Influence of Mixing Parameters on Homogeneity of Al/Sic Composites/ Wpływ Parametrów Mieszania Na Jednorodność Kompozytów Al/Sic

Archives of Metallurgy and Materials

W. Bochniak¹  J. Wozniak²  M. Kostecki²  A. Olszyna²  K. Broniszewski² 

[1] AGH UNIVERSITY OF SCIENCE AND TECHNOLOGY, FACULTY OF NON-FERROUS METALS, AL. A. MICKIEWICZA 30, 30-059 KRAKÓW, POLAND;WARSAW UNIVERSITY OF TECHNOLOGY, FACULTY OF MATERIALS SCIENCE AND ENGINEERING, 141 WOLOSKA STR., 02-507 WARSZAWA, POLAND

关键词: Keywords: composites;    hardness measurement;    microstructure;    powder metallurgy;    electron microscopy;   

DOI  :  10.2478/amm-2014-0254

学科分类：金属与冶金

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

【 摘 要 】

The main aim of this work was to study the effect of time and method of Al, SiC powders mixing on the microstructure and mechanical properties of composites. Moreover, the influence of applicating direct extrusion with a reversibly rotating die on the homogeneity of the composites was examined. Microstructure observations with the use of an optical microscope and scanning electron microscope were applied. A quantitative analysis of composite microstructure was conducted. The density (helium pycnometer method), Vickers hardness and the Young’s Modulus of the composites were also determined. The results show that the homogeneity of Al/SiC composites rises with an increase of mixing time. However, better results were obtained by application of high energy ball milling process.

【 授权许可】

Unknown