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A computational and experimental study on the effective properties of Al 2 O 3 ‐Ni composites
Author(s) -
Akhtar Syed Sohail,
Siddiqui Muhammad Usama,
Kabeer Raza,
Hakeem Abbas,
Kareem Lemboye,
Arif Abul Fazal
Publication year - 2017
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12674
Subject(s) - materials science , spark plasma sintering , composite material , composite number , nickel , volume fraction , homogenization (climate) , porosity , thermal conductivity , thermal expansion , sintering , particle size , elastic modulus , modulus , metallurgy , chemical engineering , biodiversity , ecology , biology , engineering
It has been demonstrated that effective medium approximation and mean field homogenization technique is a useful computational tool to predict the effective thermal and structural properties of alumina‐nickel (Al 2 O 3 ‐Ni) composites. Nickel particle size and volume fraction, thermal interface resistance and porosity are found significant factors that affect thermal conductivity, elastoplastic behavior, elastic modulus and thermal expansion coefficient of Al 2 O 3 ‐Ni composite. To complement the computational design, Al 2 O 3 ‐Ni composite samples with designed range of volume fractions and nickel particle size are developed using spark plasma sintering process and properties are measured for model verification.