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Mg AZ80/SiC composite bars fabricated by infiltration of porous ceramic preformsKevorkijan, VaružanSemi-industrial samples of Mg AZ80/SiC/50p composites (machined bars with o.d.=80 mm and length=150 mm, having a maximum 2 vol pct of retained porosity) were successfully fabricated by pressureless, ... low-pressure (under overpressure of about 0.3 MPa) and moderate-pressure (under overpressure of about 0.8 MPa) infiltration. Pressureless infiltration was completed in 24 hours under the flowing atmosphere of nitrogen, whereas the moderate and low-pressure infiltrations were performed under a static atmosphere of presurized nitrogen for 7 and 0.5 hours, respectively. The composite samples obtained by all applied infiltration paths posessed a homogeneous microatructure and superior mechanical properties as compared to the nonreinforced matrix. Due to the improved productivity of composite fabrication in comparisom with the two other infiltration paths investigated in this work, the moderate-pressure infiltration process was recognized as themost competitive one.Source: Metallurgical and materials transactions. A, Physical metallurgy and materials science. - ISSN 1073-5623 (Vol. 35A, Feb. 2004, str. 707-715)Type of material - article, component partPublish date - 2004Language - englishCOBISS.SI-ID - 8654870
Author
Kevorkijan, Varužan
Topics
metalurgija |
magnezijeve zlitine |
kompoziti |
porozna keramika |
infiltracija |
metallurgy |
magnesium alloys |
composites |
porous ceramics |
infiltration
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source: Metallurgical and materials transactions. A, Physical metallurgy and materials science. - ISSN 1073-5623 (Vol. 35A, Feb. 2004, str. 707-715)
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Kevorkijan, Varužan | 04968 |
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