Effects of Mg-PSZ and sintering process on the properties of ZrO2 refractories for alloy melting
Source abstract
Abstract
Magnesia partially stabilized zirconia (Mg-PSZ) was used to fabricate zirconia refractories for alloy melting. The effects of Mg-PSZ particle content and sintering process on the thermal mechanical properties, microstructural evolution, and corrosion resistance of the refractories were investigated. By regulating the sintering process, the amount of MgO incorporation in solid solution, grain growth, and ZrO 2 phase transformation degree were controlled to achieve transformation toughening. With the increase of MgO solid solution, more closed pores were formed within the samples, enhancing the comprehensive performance. Meanwhile, at 1650 °C, the sample exhibited high densification, but its thermal expansion coefficient suffered a significant decrease, which was primarily attributed to abnormal grain growth, internal stress accumulation, and the presence of closed pores. Regulating Mg-PSZ content and sintering process also reduced the refractory-alloy reaction during erosion, promoted MgAl 2 O 4 formation, and enhanced corrosion resistance—with a corrosion layer thickness of only 52 μm after 30 min erosion at 1600 °C.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Molten salt chemistry and electrochemical processes · Thermodynamic and Structural Properties of Metals and Alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Thermal-shock stable Al2O3 crucible for superalloy smelting through slip casting with particle gradation10.1016/j.ceramint.2022.11.022 ↗
2. Effect of surface brittle-to-ductile transition on high-temperature thermal shock resistance of Al2O3 ceramics10.1016/j.ceramint.2022.04.032 ↗
3. Effect of alumina addition on the phase transformation and crystallisation properties of refractory cordierite prepared from amorphous rice husk silica10.1016/j.jascer.2017.04.005 ↗
4. Study of the hydration of CaO powder by gas–solid reaction10.1016/j.cemconres.2011.06.014 ↗
5. Influence of raw material purity on microstructure and properties of calcia refractory10.1016/j.jeurceramsoc.2023.10.051 ↗
6. Behavior of inclusions in deoxidation process of molten steel with in situ produced Mg vapor10.2355/isijinternational.47.699 ↗
7. The origin of MgO type inclusion in high carbon steel10.2355/tetsutohagane1955.88.1_48 ↗
8. Study on the stability of different refractories during the melting process of a K4169 Ni-based superalloy10.1016/j.ceramint.2023.06.167 ↗
9. Interfacial reaction between nickel-based superalloy K417G and oxide refractories
10. Enhancement of thermal shock and slag corrosion resistance of MgO–ZrO2 ceramics by doping CeO210.1016/j.ceramint.2022.01.283 ↗
11. Enhanced mechanical properties and thermal shock resistance of magnesia refractories via in situ formation of tetragonal zirconia10.1016/j.ceramint.2024.01.411 ↗
12. Fabrication and properties of in situ intergranular CaZrO3 modified microporous magnesia aggregates10.1016/j.ceramint.2020.03.279 ↗
13. Crystal structure and thermomechanical properties of CaO-PSZ ceramics synthesised from fused ZrO210.1016/j.ceramint.2020.03.079 ↗
14. Effect of titanium oxide addition on sintering performance of magnesia-rich magnesia-zirconia ceramics10.1016/j.ceramint.2020.05.304 ↗
15. Enhanced ionic conductivity and thermal shock resistance of MgO stabilized ZrO2 doped with Y2O310.1016/j.ceramint.2020.05.038 ↗
16. Annealing of test specimens of high-toughness magnesia-partially-stabilized Zirconia10.1111/j.1151-2916.1988.tb05766.x ↗
17. Thermomechanical behavior of an alumina-mullite-zirconia refractory ceramic: sintering and thermally induced damage10.1016/j.jeurceramsoc.2023.09.051 ↗
18. Segregation of Ti4+ and Ce4+ impurity-cations at the grain boundaries of CeO2-TiO2-ZrO2 ceramics for overcoming strength deterioration after grain coarsening10.1016/j.matdes.2025.114717 ↗
19. Microcracking of high zirconia refractories after t→m phase transition during cooling: an EBSD study10.1016/j.jeurceramsoc.2011.02.033 ↗
20. The controlled preparation and stability mechanism of partially stabilized zirconia by microwave intensification10.1016/j.ceramint.2019.11.251 ↗
21. Isothermal and cycle properties of EB-PVD yttria-partially-stabilized zirconia thermal barrier coatings at 1150 and 1300 °C10.1016/j.ceramint.2005.10.005 ↗
22. Zinc aluminate (ZnAl2O4) refractory aggregates: dilatometric sintering studies and thermal expansion coefficient10.1016/j.jeurceramsoc.2022.06.058 ↗
23. Study on thermal expansion and thermal shock resistance of MgO-PSZ10.1016/S0167-2738(98)00529-3 ↗
24. Tuning of phase content, microstructure and thermal expansion of MgPSZ10.1016/j.ceramint.2022.10.063 ↗
25. Thermal shock behavior of dense mullite–zirconia composites obtained by two processing routes10.1016/j.ceramint.2007.07.035 ↗
26. Study of deformation and fracture of ZrO2+3%Y2O3 ceramics by wedge splitting of a chevron-notched specimen10.1016/j.engfracmech.2019.106573 ↗
27. Study of the influence of ZrB2 content and thermal shock on the elastic modulus of spark plasma sintered ZrB2-B4C composites using a non-destructive ultrasonic technique10.1016/j.jeurceramsoc.2023.09.065 ↗
28. Research progress and prospects of colored zirconia ceramics: a review10.26599/JAC.2024.9220941 ↗
29. Investigation of interaction of metal melts and zirconia10.1007/s10853-005-1928-5 ↗
30. A review of the electrochemical properties of stabilised zirconia10.1016/j.ssi.2026.117165 ↗
31. Study of regularities and features of simultaneous contact interaction of active and inert metal melts with zirconia10.1080/09276440.2024.2417161 ↗
32. Thermodynamic and kinetic mechanism of interfacial reactions between several industrial oxide refractory ceramics and Vit 105 amorphous alloy melt10.1016/j.ceramint.2025.07.267 ↗
33. Development of TiO2-doped MgO refractories with enhanced corrosion resistance for preparing high-purity nickel-based superalloys10.1016/j.jmrt.2025.01.039 ↗
34. Interior-collapsing mechanism by hydrothermal process of the MgAl2O4/MgO porous ceramic10.1007/s40145-022-0576-4 ↗