R-curve behavior of laminated SiC/BN ceramics
Source abstract
Abstract
Laminated SiC/BN ceramics with a perfect layered structure was fabricated by tap-casting process and hot-pressing sintering. Damage resistance and R-curve behavior of laminated SiC/BN ceramics were evaluated using the indentation-strength-in-bending technique, and compared with those of monolithic SiC ceramics. The results showed that the indentation strengths for monolithic SiC ceramics decreased steeply with indentation load, while for laminated SiC/BN ceramics reduced slightly with indentation load, suggesting an exceptional damage resistance. Moreover, a rising R-curve behavior was demonstrated for laminated SiC/BN ceramics, a plateau R-curve behavior for monolithic SiC ceramics. The excellent damage resistance and pronounced R-curve behavior of laminated SiC/BN ceramics were attributed to crack deflection, crack branching and crack delamination at the SiC/BN weak interfaces.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (20)
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1. Structural ceramic microlaminates by electrophoretic deposition10.1111/j.1151-2916.1992.tb05531.x ↗
2. Enhanced fracture toughness in layered microcomposites of Ce-ZrO2 and Al2O310.1111/j.1151-2916.1991.tb04290.x ↗
3. Alumina and alumina/zirconia multilayer composites obtained by slip casting10.1111/j.1151-2916.1989.tb07692.x ↗
4. Processing of tape-cast laminates prepared from fine alumina/zirconia powders10.1111/j.1151-2916.1994.tb07110.x ↗
5. Design of laminated ceramic composite for improved strength and toughness10.1111/j.1151-2916.1992.tb04440.x ↗
6. Coat of alumina sheet with needle-like mullite10.2109/jcersj.98.1114 ↗
7. Multilayer Al2O3/SiC ceramics with improved mechanical behavior
8. In situ processing of silicon carbide layer structures10.1111/j.1151-2916.1995.tb09104.x ↗
9. A simple way to make tough ceramics10.1038/347455a0 ↗
10. The fabrication and failure of laminar ceramic composites10.1016/0956-7151(92)90471-P ↗
11. Hertzian contact response of tailored silicon nitride multilayers10.1111/j.1151-2916.1996.tb08540.x ↗
12. Fracture behavior of multilayer silicon nitride/boron nitride ceramics10.1111/j.1151-2916.1996.tb08996.x ↗
13. Fracture resistance behavior of multilayered silicon nitride10.1111/j.1151-2916.1997.tb02931.x ↗
14. Selection of interfacial layer of laminated silicon carbide matrix composites
15. Oxidation resistance of SiC/SiC micro and minicomposites with a highly crystallised Bn interphase10.1016/S0955-2219(98)00120-4 ↗
16. Role of microstructure-strength properties in ceramics10.1111/j.1151-2916.1997.tb03129.x ↗
17. Direct observation and analysis of indentation cracking in glass and ceramics10.1111/j.1151-2916.1990.tb05119.x ↗
18. A critical evaluation of indentation techniques for measuring fracture toughness-direct crack measurements10.1111/j.1151-2916.1981.tb10320.x ↗
19. A simple method for determining elastic-modulus-to-hardness ratios using Knoop indentation measurements10.1111/j.1151-2916.1982.tb10357.x ↗
20. Microstructure–strength properties in ceramics10.1111/j.1151-2916.1985.tb16163.x ↗