Abstract
Thermal shock resistance of fibrous monolithic Si3N4/BN ceramic was investigated by measuring the strength retention after varying the temperature difference (ΔT) up to 1400°C and was compared with that of monolithic Si3N4. Monolithic Si3N4 showed catastrophic drop in flexural strength above Δ T of 1000 °C, while FM showed negligible reduction in flexural strength without critical temperature difference (ΔTc). Two parameters, such as the resistance to crack initiation (R′) and crack propagation (R?′), were used in order to explain the thermal shock behaviors of fibrous monolith and monolithic Si3N4. Furthermore, crack interactions during flexural testing, such as delamination cracks and crack deflection, were characterized and were related to the work-of-fracture (WOF).
| Original language | English |
|---|---|
| Pages (from-to) | 2339-2347 |
| Number of pages | 9 |
| Journal | Journal of the European Ceramic Society |
| Volume | 24 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2004 Jul 1 |
| Externally published | Yes |
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Keywords
- BN
- Composites
- Fibrous monoliths
- SiN
- Thermal shock
ASJC Scopus subject areas
- Ceramics and Composites
Cite this
Thermal shock resistance of fibrous monolithic Si3N4/BN ceramics. / Koh, Young-Hag; Kim, Hae Won; Kim, Hyoun Ee; Halloran, John W.
In: Journal of the European Ceramic Society, Vol. 24, No. 8, 01.07.2004, p. 2339-2347.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermal shock resistance of fibrous monolithic Si3N4/BN ceramics
AU - Koh, Young-Hag
AU - Kim, Hae Won
AU - Kim, Hyoun Ee
AU - Halloran, John W.
PY - 2004/7/1
Y1 - 2004/7/1
N2 - Thermal shock resistance of fibrous monolithic Si3N4/BN ceramic was investigated by measuring the strength retention after varying the temperature difference (ΔT) up to 1400°C and was compared with that of monolithic Si3N4. Monolithic Si3N4 showed catastrophic drop in flexural strength above Δ T of 1000 °C, while FM showed negligible reduction in flexural strength without critical temperature difference (ΔTc). Two parameters, such as the resistance to crack initiation (R′) and crack propagation (R?′), were used in order to explain the thermal shock behaviors of fibrous monolith and monolithic Si3N4. Furthermore, crack interactions during flexural testing, such as delamination cracks and crack deflection, were characterized and were related to the work-of-fracture (WOF).
AB - Thermal shock resistance of fibrous monolithic Si3N4/BN ceramic was investigated by measuring the strength retention after varying the temperature difference (ΔT) up to 1400°C and was compared with that of monolithic Si3N4. Monolithic Si3N4 showed catastrophic drop in flexural strength above Δ T of 1000 °C, while FM showed negligible reduction in flexural strength without critical temperature difference (ΔTc). Two parameters, such as the resistance to crack initiation (R′) and crack propagation (R?′), were used in order to explain the thermal shock behaviors of fibrous monolith and monolithic Si3N4. Furthermore, crack interactions during flexural testing, such as delamination cracks and crack deflection, were characterized and were related to the work-of-fracture (WOF).
KW - BN
KW - Composites
KW - Fibrous monoliths
KW - SiN
KW - Thermal shock
UR - http://www.scopus.com/inward/record.url?scp=1342270107&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1342270107&partnerID=8YFLogxK
U2 - 10.1016/S0955-2219(03)00644-7
DO - 10.1016/S0955-2219(03)00644-7
M3 - Article
AN - SCOPUS:1342270107
VL - 24
SP - 2339
EP - 2347
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
SN - 0955-2219
IS - 8
ER -