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This article is cited in 14 scientific papers (total in 14 papers)
Mechanical properties, strength physics and plasticity
Structure and mechanical properties of crystals of partially stabilized zirconia after thermal treatment
M. A. Borika, V. T. Bublikb, A. V. Kulebyakina, E. E. Lomonovaa, F. O. Milovichb, V. A. Myzinaa, V. V. Osikoa, S. V. Seryakovb, N. Yu. Tabachkovab a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
b National University of Science and Technology «MISIS», Moscow
Abstract:
The phase composition and morphology of the twin structure of the Y$_2$О$_3$-stabilized zirconia crystals (from 2.8 to 4.0 mol%) after the thermal treatment at 1600$^\circ$C have been investigated by X-ray diffractometry and transmission electron microscopy. It is shown that as the concentration of the stabilizing Y$_2$О$_3$ impurity increases, the character of the twin structure changes, and the amount of the untransformed phase $t'$ increases. The dependence of the hardness and crack resistance of the crystals of partially stabilized zirconia on the Y$_2$О$_3$ concentration and the indenter orientation is investigated using the microindentation method. The sample with the lowest concentration of the stabilizing Y$_2$О$_3$ impurity turned out the most crack resistant. This can be explained by a high content of tetragonal phase $t$ in it, which provides the transformation strengthening mechanism of the material, and by a more multilevel character of twinning.
Received: 28.01.2013
Citation:
M. A. Borik, V. T. Bublik, A. V. Kulebyakin, E. E. Lomonova, F. O. Milovich, V. A. Myzina, V. V. Osiko, S. V. Seryakov, N. Yu. Tabachkova, “Structure and mechanical properties of crystals of partially stabilized zirconia after thermal treatment”, Fizika Tverdogo Tela, 55:8 (2013), 1578–1584; Phys. Solid State, 55:8 (2013), 1690–1696
Linking options:
https://www.mathnet.ru/eng/ftt12519 https://www.mathnet.ru/eng/ftt/v55/i8/p1578
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