6533b7cefe1ef96bd125798a

RESEARCH PRODUCT

Mechanical, thermal and electrical properties of monolayer and bilayer graded Al/SiC/rice husk ash (RHA) composite

C.a. GutierrezN. SoltaniS SoltaniJ. TappAngela MöllerAmin BahramiAleksander GurloLuis A. GonzálezMartin I. Pech-canul

subject

Materials scienceMechanical EngineeringBilayerComposite numberMetals and AlloysYoung's modulus02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnologyThermal diffusivity01 natural sciencesThermal expansion0104 chemical sciencessymbols.namesakeFlexural strengthMechanics of MaterialsElectrical resistivity and conductivityMonolayerMaterials ChemistrysymbolsComposite material0210 nano-technology

description

Abstract The mechanical, electrical and thermal properties as well as thermal expansion of Al/SiC/RHA (rice husk ash) monolayer and bilayer composite have been studied using the Taguchi method and analysis of variance (ANOVA). The parameter that most significantly affects the modulus of elasticity of Al/SiC/RHA bilayer composites is processing time, with contribution percentages of 68 and 27% calculated from stress-strain graphs and ultrasonic method, respectively. However, the factor which mostly affects bending strength, CTE value and electrical resistivity of composites is process temperature with contribution percentages of 32, 28, and 22%, respectively. The projected values for modulus of elasticity (170 GPa), bending strength (369 MPa), CTE (8.9 × 10 −6 /°C) and electrical resistivity (0.0019 Ω m) of Al/SiC/RHA composites are in excellent agreement with those obtained in the verification tests under the optimal conditions according to ANOVA.

https://doi.org/10.1016/j.jallcom.2016.12.339