Structural-Phase Change of Multilayer Ceramics Zr-Y-O/Si-Al-N under High Temperature

被引：0

作者：

Fedorischeva, Marina ^{[1
]}

Kalashnikov, Mark ^{[1
,2
]}

Bozhko, Irina ^{[2
]}

Dorofeeva, Tamara ^{[1
]}

Sergeev, Victor ^{[1
,2
]}

机构：

[1] RAS, Inst Strength Phys & Mat Sci, SB, Tomsk 634055, Russia

[2] Natl Res Tomsk Polytech Univ, Dept Mat Sci, Tomsk 634050, Russia

来源：

CERAMICS-SWITZERLAND | 2023年 / 6卷 / 02期

关键词：

structure-phase state; multilayer coatings; grain size; curvature torsion; phase transition; thermal cyclic resistance; MECHANICAL-PROPERTIES; GRAIN-SIZE; TRANSFORMATION; STRENGTH; 3Y-TZP;

D O I：

10.3390/ceramics6020074

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To increase the thermocyclic resistance of material, multilayer coatings with alternating layers of Zr-Y-O and Si-Al-N were obtained via magnetron sputtering. It was established that a coating layer based on Zr-Y-O has a columnar structure; the height of the columns is determined by the thickness of the layer. The Si-Al-N-based layer is amorphous. There were monoclinic and tetragonal phases with a large lattice parameter in the composition of the Zr-Y-O-based coating layer. After high-temperature annealing, a tetragonal phase with a small lattice parameter appeared in the microscope column. In the "in situ" mode, a change in the structural state of the Zr-Y-O coating layer was detected in the temperature range of 450-500 & DEG;C; namely, a change in the grain size and coherent scattering regions, and an increase in internal elastic stresses. It was found that the thermocyclic resistance increased by more than two times for multilayer samples compared to the single-layer ones we studied earlier.

引用

页码：1227 / 1237

页数：11

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