Structural, thermal and mechanical properties of aluminum nitride ceramics with CeO2 as a sintering aid
Source abstract
Abstract
Abstract AlN ceramics have been prepared with CeO 2 as a sintering aid at a sintering temperature of 1900 °C. The effect of CeO 2 contents on the microstructure, density, thermal conductivity and hardness was investigated. Addition of CeO 2 exerted a significant effect on the densification of AlN ceramics and hence on the microstructure. Thermal conductivity of AlN ceramics increased with CeO 2 content and was greater than that of Y 2 O 3 -doped AlN ceramics at a similar sintering temperature. The resulting AlN ceramics with 1.50 wt% of CeO 2 had the highest relative density of 99.94%, thermal conductivity of 156 W m −1 K −1 and hardness of 72.46 kg/mm 2 .
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Metal and Thin Film Mechanics · Advanced materials and composites
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References (22)
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1. Sintering of AlN using CaO–Al2O3 as a sintering additive: chemistry and microstructural development10.1111/j.1151-2916.2002.tb00565.x ↗
2. Morphological effect of second phase on the thermal conductivity of AlN ceramics10.1111/j.1151-2916.1996.tb08549.x ↗
3. Cutler high-thermal-conductivity aluminum nitride ceramics: the effect of thermodynamic, kinetic, and microstructural factors10.1111/j.1151-2916.1997.tb03000.x ↗
4. Facile and effective aluminium nitride anti-oxidation coating for carbon nanotubes10.1016/j.surfcoat.2015.06.024 ↗
5. The intrinsic thermal conductivity of AlN10.1016/0022-3697(87)90153-3 ↗
6. Thermodynamic and kinetic effects of oxygen removal on the thermal conductivity of aluminum nitride10.1111/j.1151-2916.1989.tb06027.x ↗
7. Effects of dopants on the complex impedance and dielectric properties of aluminum nitride10.1111/j.1151-2916.1992.tb04402.x ↗
8. Processing and characterization of aluminum nitride ceramics for high thermal conductivity10.1002/adem.201400078 ↗
9. Electrical conduction in aluminum nitride10.1111/j.1151-2916.1993.tb05319.x ↗
10. Microstructural characterization of high-thermal-conductivity aluminum nitride ceramic10.1111/j.1151-2916.2002.tb00587.x ↗
11. Effect of yttria on the thermal conductivity of aluminum nitride10.1111/j.1151-2916.1994.tb07060.x ↗
12. Preparation of translucent AlN ceramics
13. Transient liquid-phase sintering of AlN ceramics with CaF2 additive10.1016/j.jeurceramsoc.2013.03.024 ↗
14. Effects of MgO addition on the density and dielectric loss of AlN ceramics sintered in presence of Y2O310.1016/j.jeurceramsoc.2005.03.141 ↗
15. High-strength AlN ceramics by low-temperature sintering with CaZrO3–Y2O3 co-additives10.1016/j.jeurceramsoc.2014.05.008 ↗
16. Microstructure and mechanical properties of aluminum nitride co-doped with cerium oxide via hot-pressing sintering10.1016/j.jallcom.2015.03.235 ↗
17. Effect of MgO/CeO2 on pressure less sintering of silicon nitride10.1016/S0254-0584(00)00346-1 ↗
18. Mechanical properties and microstructure evolution of Ti/Al2O3 cermet composite with CeO2 addition10.1016/j.jallcom.2014.08.007 ↗
19. Low temperature pressureless sintering of a-SiC with Al2O3 and CeO2 as additives10.1016/j.jeurceramsoc.2013.09.015 ↗
20. Influence of the de-waxing atmosphere on the properties of AlN ceramics processed from aqueous media10.1016/j.jeurceramsoc.2005.06.001 ↗
21. Effect of Sm2O3 content on microstructure and thermal conductivity of Spark Plasma Sintered AlN ceramics10.1016/j.jallcom.2009.04.013 ↗
22. Thermal conductivity of micro hot-pressed AlN ceramics fabricated using a conventional MoSi2 heating element furnace