Anisotropy of thermal expansion of 3Y-TZP, α-Al2O3 and composites from 3Y-TZP/α-Al2O3 system

被引：26

作者：

Grabowski, Grzegorz ^{[1
]}

Lach, Radoslaw ^{[1
]}

Pedzich, Zbigniew ^{[1
]}

Swierczek, Konrad ^{[1
]}

Wojteczko, Agnieszka ^{[1
]}

机构：

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

来源：

ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING | 2018年 / 18卷 / 01期

关键词：

Thermal expansion; 3Y-TZP; Al2O3; Composites; X-ray diffraction; FINITE-ELEMENT-ANALYSIS; RESIDUAL-STRESSES; TETRAGONAL ZIRCONIA; ALUMINA; TEMPERATURE; HOMOGENIZATION; DIFFRACTION; SIMULATION; CERAMICS; GRAINS;

D O I：

10.1016/j.acme.2017.06.008

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The work deals with determining of lattice parameters ( not present in the literature till now) in the temperature range of 295-1473 K for tetragonal zirconia polycrystals, stabilized with 3 mol.% of yttria and for corundum (alpha-Al2O3). Basing on lattice parameters changes with temperature, thermal expansion coefficients for 3Y-TZP and alpha-Al2O3 monocrystals along a and c crystallographic axis were determined. The calculated values of axial coefficients of thermal expansion were used for creation of a micromechanical model for simulation of thermal expansion of materials, constituting the real microstructures of composites from 3Y-TZP/alpha-Al2O3. The results of simulations were compared with thermals expansion coefficients, determined by dilatometric measurements and performed for real composites. (C) 2017 Politechnika Wroclawska. Published by Elsevier Sp. z.o.o. All rights reserved.

引用

页码：188 / 197

页数：10

共 54 条

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