Consolidation and grain growth of tantalum diboride during spark plasma sintering
Source abstract
Abstract
Bulk tantalum diboride ceramics have been consolidated by spark plasma sintering (SPS) at 1700–2200 °C using moderate pressure of 30 MPa. The effect of temperature and dwell time on the densification, microstructure and mechanical properties were investigated. SPS resulted in dense, crack-free specimens with strength ranging from 280 to 550 MPa. The room-temperature strength of TaB2 ceramics was analyzed as a function of the grain size. Activation energy for the grain growth process was estimated as 1078±31 kJ mol−1.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · MXene and MAX Phase Materials
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References (30)
Show source-provided references
1. Hard compounds of refractory metals, Moscow
2. Bulk monolithic zirconium and tantalum diborides by reactive and non-reactive spark plasma sintering10.1016/j.jallcom.2015.12.096 ↗
3. Synthesis, densification, and mechanical properties of TaB210.1016/j.matlet.2008.06.052 ↗
4. Consolidation of B4C–TaB2 eutectic ceramics composites by spark plasma sintering10.1016/j.jascer.2015.08.001 ↗
5. High-strength B4C–TaB2 eutectic composites obtained via in situ by spark plasma sintering10.1111/jace.14235 ↗
6. High-temperature reaction consolidation of TaC–TiB2 ceramic composites by spark-plasma sintering10.1016/j.jeurceramsoc.2014.08.007 ↗
7. High-strength TiB2–TaC ceramic composites prepared using reactive spark plasma consolidation10.1016/j.ceramint.2015.09.065 ↗
8. TaB2-based ceramics: Microstructure, mechanical properties and oxidation resistance10.1016/j.jeurceramsoc.2011.07.032 ↗
9. Synthesis, processing and properties of TaC-TaB2-C ceramics10.1016/j.jeurceramsoc.2010.01.032 ↗
10. Effect of SiC, TaB2 and TaSi2 additives on the isothermal oxidation resistance of fully dense zirconium diboride10.1557/jmr.2009.0216 ↗
11. Oxidation Resistance of Fully Dense ZrB2 with SiC, TaB2, and TaSi2 Additives10.1111/j.1551-2916.2008.02368.x ↗
12. Elliot · 1967 · 565
13. Sintering and properties of titanium diboride made from powder synthesized in a plasma-arc heater10.1111/j.1151-2916.1984.tb19744.x ↗
14. The sintering of combustion-synthesized titanium diboride10.1007/BF01132409 ↗
15. Tough ceramics by microwave sintering of nanocrystalline titanium diboride ceramics10.1016/j.ceramint.2013.07.010 ↗
16. Densification and grain growth during microwave sintering of titanium diboride10.1016/j.scriptamat.2013.07.012 ↗
17. The mechanism of shrinkage of zirconium diboride during sintering10.1007/BF00775860 ↗
18. Sintering mechanisms and kinetics for reaction hot pressed ZrB210.1111/jace.13544 ↗
19. Densification mechanisms in high-pressure hot-pressing of HfB210.1111/j.1151-2916.1969.tb12654.x ↗
20. Hardness and toughness control of brittle boron suboxide ceramics by consolidation of star-shaped particles by spark plasma sintering10.1016/j.ceramint.2015.10.157 ↗
21. High-Temperature strength of boron suboxide ceramic consolidated by spark plasma sintering10.1111/jace.14308 ↗
22. In situ fabrication of B4C–NbB2 eutectic composites by spark–plasma sintering10.1111/jace.13083 ↗
23. Fabrication, microstructure and properties of in situ synthesized B4C–NbB2 eutectic composites by spark plasma sintering10.2109/jcersj2.123.33 ↗
24. Peculiarities of the neck growth process during initial stage of spark-plasma, microwave and conventional sintering of WC spheres10.1016/j.jallcom.2012.01.146 ↗
25. A scaling law study of the initial stage of microwave sintering of iron spheres10.1016/j.scriptamat.2011.11.017 ↗
26. Kang · 2005
27. Touloukian · 1977 · 13
28. Thermal expansion studies on the group IV-VII transition metal diborides10.1016/0022-5088(88)90219-6 ↗
29. Self-diffusion of boron in TiB210.1063/1.1530715 ↗
30. Mechanical properties of ZrB2- and HfB2-based ultra-high temperature ceramics fabricated by spark plasma sintering10.1016/j.jeurceramsoc.2012.12.009 ↗