The Influence of Thermal Residual Stresses on Mechanical Properties of Silicon Nitride-Based Composites

被引：7

作者：

Dubiel, Aleksandra ^{[1
]}

Grabowski, Grzegorz ^{[1
]}

Goly, Marcin ^{[1
]}

Skrzypek, Stanislaw ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Al Mickiewicza 30, PL-30059 Krakow, Poland

来源：

MATERIALS | 2020年 / 13卷 / 05期

关键词：

ceramic-ceramic composites; residual thermal stresses; sin(2)psi; FEM modeling; silicon nitride; ELASTIC-CONSTANTS; EXPANSION; OXYNITRIDE; BEHAVIOR; MICROSTRUCTURE; TOUGHNESS; ELEMENTS; GROWTH;

D O I：

10.3390/ma13051092

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, two kinds of silicon nitride-based composites, namely, those with titanium nitride or silicon carbide additives, were sintered using the hot pressing technique (HP). The phase composition, microstructure, and mechanical and elastic properties of the materials were characterized. Three-dimensional geometric models of the composites were created on the basis of microstructure parameters. Using these models, bulk residual thermal stresses were calculated by the finite element method (FEM). Surface stresses were determined using the XRD method of sin(2)psi.

引用

页数：14

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