Using Powder Metallurgy Process to Produce Ceramic-Metal Composites

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Using Powder Metallurgy Process to Produce Ceramic-Metal Composites

Journal Title: Al-Bahir Journal for Engineering and Pure Sciences - Year 2023, Vol 3, Issue 2

Abstract

Pressing powders and engineering materials is an innovative method for producing samples with a low cost and multiple industrial applications. In the current article, copper metal was added in different volume ratios to a ceramic material, alumina, for the purpose of improving the properties of alumina, by pressing with a hydraulic press. Where the results of the article showed that the percentage of true porosity after sintering is from (26e13)% with a copper content of (5%) to (25%). As for the apparent porosity after sintering, it decreased from (26e9)% at a copper content of (5e25)%, while the water absorption was directly proportional to the real and apparent porosity. As for the results, the Vickers hardness increased after sintering from(54e101)Kg/mm2 at a copper content of (5e25)%. As for after heat treatment, there was a gradual increase in the resistance from (73e118)N/mm2 at a copper content of (5e25)%. As for the synthetic results of SEM, the best consistency was at (25%) copper, and the X-ray diffraction results showed the emergence of new phases that significantly strengthen the composites and improve the mechanical and structural properties And a clear improvement during the crystalline structure, and thus we find that the appearance of the phase (CuAlO2) is characterized by high durability and strength that hinders crystalline dislocations.

Authors and Affiliations

Ibrahim F. Abed, Salih, Y. Darweesh

Keywords

MAGNETIC FIELD’S EFFECT ON TWO-PHASE FLOW OF JEFFREY AND NON-JEFFREY FLUID WITH PARTIAL SLIP AND HEAT TRANSFER IN AN INCLINED MEDIUM

EP ID EP744475
DOI -
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