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R-curve response of silicon carbide whisker-reinforced alumina: Microstructural influence

Conference ·
OSTI ID:197838

Rising fracture resistance with crack extension (R-curve response) can lead to improvements in the mechanical reliability of ceramics. To understand how microstructures influence the R-curve behavior, direct observations of crack interactions with microstructural features were conducted on SiC whisker-reinforced alumina. The contribution of the dominant toughening mechanisms to the R-curve behavior of these composites is discussed using experimental and theoretical studies.

Research Organization:
Oak Ridge National Lab., TN (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States); Oak Ridge Inst. for Science and Education, TN (United States)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
197838
Report Number(s):
CONF-951155--40; ON: DE96005969
Country of Publication:
United States
Language:
English

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