Representation of thermal expansion coefficient of solid material with particulate inclusion

This paper analyzed a Young’s modulus (E) and a thermal expansion coefficient (TEC, β) of the material with simple cubic particulate inclusion using two model structures: a parallel structure and a series structure of laminated layers. The derived β equations were applied to calculate the β value of the W–MgO system. Both the models provided a good agreement for the measured and calculated β values. The accuracy was higher for the series model structure than for the parallel model structure.