residual stresses and mechanical properties of si3n4/sic multilayered composites with different sic layers
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2017
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Abstract
The effect of residual stresses on the strength, toughness and work of fracture of Si3N4/SiC multilayered composites with different SiC layers has been investigated. It may be an effective way to design and optimize the mechanical properties of Si3N4/SiC multilayered composites by controlling the properties of SiC layers. Si3N4/SiC multilayered composites with different SiC layers were fabricated by aqueous tape casting and pressureless sintering. Residual stresses were calculated by using ANSYS simulation, the maximum values of tensile and compressive stresses were 553.2 MPa and −552.1 MPa, respectively. Step-like fracture was observed from the fracture surfaces. Fraction of delamination layers increased with the residual stress, which can improve the reliability of the materials. Tensile residual stress was benefit to improving toughness and work of fracture, but the strength of the composites decreased.
| Reference Key |
liu2017boletnresidual
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|---|---|
| Authors | ;Shichao Liu;Yuanming Li;Ping Chen;Wenjie Li;Shixin Gao;Biao Zhang;Feng Ye |
| Journal | medicinal chemistry (shariqah (united arab emirates)) |
| Year | 2017 |
| DOI |
10.1016/j.bsecv.2016.11.003
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