The effects of the addition of tetragonal-ZrO2 on the mechanical properties of MgAl2O4 – ZrO2 composites
Source abstract
Abstract
Abstract The effects of the addition of tetragonal 3mol% Y2O3 – ZrO2 into a MgAl2O4 spinel matrix were investigated. MgAl2O4 spinel's lacking mechanical properties prevent further utilization in many structural and refractory applications even though it has excellent chemical and thermal stability. The addition of tetragonal-ZrO2 was observed to improve the hardness, fracture toughness and biaxial flexural strength of MgAl2O4 materials. Moreover, the additions of 3mol% Y2O3 – ZrO2 resulted in a reduction of the mean grain size.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (25)
Show source-provided references
1. Zirconia-spinel composites. Part I: synthesis of powders and dense materials10.1016/S0025-5408(00)00410-4 ↗
2. Zirconia-spinel composites. Part II: mechanical properties10.1016/S0025-5408(00)00409-8 ↗
3. Synthesis and characterization of MgAl2O4-ZrO2 composites10.1016/j.ceramint.2007.10.006 ↗
4. Magnesium aluminate spinel raw materials for high performance refactories for steel ladles
5. Refractory applications of magnesium aluminate spinel
6. Industrial experience with spinel-bonded magnesia checker bricks in the regenerator condensation zone
7. Effect of ZrO2 addition on MgAl2O4 spinel from commercial grade oxide reactants10.1016/j.ceramint.2016.03.167 ↗
8. Transformation toughening in zirconia-containing ceramics10.1111/j.1151-2916.2000.tb01221.x ↗
9. Stabilized zirconia as a structural ceramic: an overview10.1016/j.dental.2007.05.005 ↗
10. Toughening of yttria-stabilised tetragonal zirconia ceramics10.1179/174328005X41113 ↗
11. Grain-size-dependent transformation behavior in polycrstalline tetragonal zirconia10.1111/j.1151-2916.1992.tb07832.x ↗
12. Transformation toughening Part 1 SIze effects associated with the thermodynamics of constrained transformations10.1007/BF00809057 ↗
13. Effect of dopants on zirconia stabilization - an X-ray absorption study: 1, trivalent dopants10.1111/j.1151-2916.1994.tb06964.x ↗
14. Mechanical properties of zirconia toughened alumina with 10 - 24 vol.% 1.5mol% Y-TZP reinforcement10.1016/j.jeurceramsoc.2012.02.057 ↗
15. Optical and thermal properties of spinel with revised (increased) absorption at 4 to 5μm wavelengths and comparison with sapphire10.1117/1.OE.52.8.087113 ↗
16. Mechanical properties of ZTA: correlation with structural properties and influence of ageing
17. The system zirconia-hafnia10.1111/j.1151-2916.1968.tb11822.x ↗
18. The tetragonal-monoclinic transformation in zirconia: lessons learned and future trends10.1111/j.1551-2916.2009.03278.x ↗
19. A critical evaluation of indentation techniques for measuring fracture toughness: I, direct crack measurements10.1111/j.1151-2916.1981.tb10320.x ↗
20. The ball on three balls test for strength testing of brittle discs: stress distribution in the disc10.1016/S0955-2219(01)00458-7 ↗
21. Din EN 843-1 · 2008
22. Simultaneous structure and size-strain refinement by rietveld method10.1107/S0021889890002382 ↗
23. Particle size distribution measurement and assessment of agglomeration of commercial nanosized ceramic particles10.1081/DIS-120015367 ↗
24. Grain size and porosity dependence of ceramic fracture energy and toughness at 22C10.1007/BF00356616 ↗
25. Effect of the green porous texture on porcelain tile properties10.1016/j.jeurceramsoc.2006.07.005 ↗