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Effect of B4C reinforcement ratio and sintering temperature on the mechanical behavior in Al-B4C composites
Author(s) -
Muharrem Pul
Publication year - 2018
Publication title -
science of sintering/science of sintering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.309
H-Index - 25
eISSN - 1820-7413
pISSN - 0350-820X
DOI - 10.2298/sos1801051p
Subject(s) - materials science , sintering , composite material , composite number , reinforcement , hot pressing , volume (thermodynamics) , pressing , physics , quantum mechanics
In this study, powders of Al 1070 and B4C were prepared by volume in three different reinforcement ratios 4 % B4C, 8 % B4C and 16 % B4C compacted under the pressure of 500 MPa with cold pressing method then sintered under the temperatures of 500, 550 and 600?C. Then the hardness was measured and wear test was performed using pin-on-disk method. In the results of tests, the compression pressure of 500 MPa was not sufficient for composite structure to achieve the required density. The highest hardness values were achieved at sintering temperature of 550?C and in 8 % B4C reinforced composite. The highest wear rate was measured in 4% B4C reinforced composite specimen sintered at 600?C. It is determined that a sintering temperature above 550?C had adverse effects on the mechanical properties.

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