Processing and properties of ZrB2–SiC composites obtained by aqueous tape casting and hot pressing
Source abstract
Abstract
Abstract ZrB 2 –SiC composites with different SiC content were prepared through aqueous tape casting and hot pressing. The influences of dispersant, SiC content and binder content on the rheological properties of slurries were investigated and the conditions for preparing stable ZrB 2 –SiC suspensions were optimized. After tape casting and drying, the green ZrB 2 –SiC tapes showed good flexibility, lubricious surface and homogeneous microstructure. The ZrB 2 ceramics could be densified to 97.2% after hot-pressing, while the ZrB 2 containing 20 and 30 vol% SiC ceramics were nearly fully densified (>99%). The sintered ZrB 2 –20 vol% SiC ceramic had improved mechanical properties compared with ZrB 2 ceramic. Further increase in SiC content resulted in lower flexural strength and fracture toughness. SEM and TEM showed a fine microstructure with a clear grain boundary. The fracture mode changed from intragranular type for ZrB 2 to both intragranular and intergranular type for ZrB 2 –SiC composites.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Evaluation of ultra high temperature ceramics for areopropulsion use10.1016/S0955-2219(02)00140-1 ↗
2. Oxidation-based materials selection for 2000°C+hypersonic aerosurfaces: theoretical considerations and historical experience10.1023/B:JMSC.0000041686.21788.77 ↗
3. The hypersonic environment: required operating conditions and design challenges10.1023/B:JMSC.0000041688.68135.8b ↗
4. Zirconium diboride
5. Engineering properties of borides
6. Materials for ultrahigh temperature structural applications
7. Development and characterization of metal-diboride-based compositeds toughened with ultra-fine SiC particulates10.1016/j.solidstatesciences.2005.02.007 ↗
8. Pressureless sintering of high-density ZrB2–SiC ceramic composites10.1111/j.1551-2916.2006.01270.x ↗
9. Influence of silicon carbide particle size on the microstructure and mechanical properties of zirconium diboride-silicon carbide ceramics10.1016/j.jeurceramsoc.2006.07.003 ↗
10. Improved processing and oxidation-resistance of ZrB2 ultra-high temperature ceramics containing SiC nanodispersoids10.1016/j.msea.2007.03.002 ↗
11. Oxidation behavior of zirconium diboride-silicon carbide at 1800°C10.1016/j.scriptamat.2007.07.009 ↗
12. Beneficial effects of an ultra-fine α-SiC incorporation on the sinterability and mechanical properties of ZrB210.1007/s00339-005-3327-9 ↗
13. Highly textured ZrB2-based ultrahigh temperature ceramics via strong magnetic field alignment10.1016/j.scriptamat.2008.12.027 ↗
14. Colloidal processing of ceramics10.1111/j.1151-2916.2000.tb01560.x ↗
15. Novel powder-processing methods for advanced ceramics10.1111/j.1151-2916.2000.tb01432.x ↗
16. Near-net shaping of aqueous alumina slurries using carragreenan10.1016/S0955-2219(01)00283-7 ↗
17. Aqueous gel-casting of hydroxyapatite10.1016/j.msea.2006.07.028 ↗
18. Powder processing science and technology for increased reliability10.1111/j.1151-2916.1989.tb05945.x ↗
19. Tape casting: the basic process for meeting the needs of electronics industry
20. The role of slip additives in tape – casting technology: part I – solvents and dispersants
21. The role of slip additives in tape – casting technology: part II – binders and plasticizers
22. A simple way to make tough ceramics10.1038/347455a0 ↗
23. Thermal shock of layered ceramic structures with crack-deflecting ingerfaces10.1111/j.1151-2916.2001.tb00615.x ↗
24. Aqueous tape casting of zirconium diboride10.1111/j.1551-2916.2009.03222.x ↗
25. High strength zirconium diboride-based ceramics10.1111/j.1551-2916.2004.01170.x ↗
26. Electrokinetic properties of colloidal zirconia powders in aqueous suspension10.1111/j.1151-2916.1999.tb02255.x ↗
27. Rheology of water-based tape casting slurries
28. Aqueous suspensions for tape casting based on acrylic binders10.1016/S0955-2219(97)00115-5 ↗
29. Boride-based hard materials
30. Pressureless sintering of ZrB2–SiC ceramics10.1111/j.1551-2916.2007.02006.x ↗
31. Effect of hot pressing time and temperature on the microstructure and mechanical properties of ZrB2–SiC10.1007/s10853-006-1274-2 ↗
32. Densification of ZrB2-based composites and their mechanical and physical properties: a review10.1016/j.jeurceramsoc.2008.11.008 ↗