Scopul nostru este sprijinirea şi promovarea cercetării ştiinţifice şi facilitarea comunicării între cercetătorii români din întreaga lume.
Autori: Ileana-Nicoleta POPESCU, Simona ZAMFIR,Violeta-Florina ANGHELINA, Carmen-Otilia RUSANESCU
Editorial: WORLD SCIENTIFIC AND ENGINEERING ACAD AND SOC, ATHENS, GREECE, ADVANCED MANUFACTURING ENGINEERING, QUALITY AND PRODUCTION SYSTEMS Book Series: Electrical and Computer Engineering Series , 1, p.200-205, 2010.
The paper presents the experimental results concerning fabrication through powder metallurgy (P/M) of new ecological aluminum matrix composites (AMC) at a low cost for automotive industry applications. The difficult compaction and sintering of aluminum powder products and especially of powders from aluminum composite mixtures reinforced with hard ceramic particles require complex phenomenon’s analysis which occurs during materials’ fabrication. Thus was realized a complex experimental program, where have been varied proportion of SiCp (5-20%wt.) and process parameters: applied pressure (100-450MPa), sintering temperature (520-620)degrees C and secondary heat treatment applied after sintering. In the first part of the research activities was determined the effects of varied amount of silicon carbide particles (SiCp) addition in the mixture on the characteristics and densification of powders of Al-Cu alloys matrix composites, using analysis’ techniques specific to P/M processes and also Environmental Scanning Electron Microscopy and Electron Probe Micro Analyzer.
Cuvinte cheie: ecological AMC obtained by P/M, physical, chemical and technological characterization of elemental and mixture powders, densification of powders