Temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics

Weiguo Li; Dingyu Li; Tianbao Cheng; Daining Fang

doi:10.1016/j.engfracmech.2011.11.016

Temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics

Weiguo Li^*, Dingyu Li, Tianbao Cheng, Daining Fang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

A temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics is established. This model is based on the sensitivities of thermo-physical properties to temperature and the evolution of the control mechanisms of strength with the change of temperature of ultra-high temperature ceramics, and incorporates the effects of micro-crack size, damage evolution and temperature on the thermal shock resistance of ultra-high temperature ceramics. The result shows that introducing micro-cracks into ultra-high temperature ceramic material and controlling damage evolution as the nucleation mode through microstructure design method could significantly improve the TSR, particularly in the corresponding initial thermal shock temperature dangerous zone, and keep the high strength of ultra-high temperature ceramics.

Original language	English
Pages (from-to)	9-16
Number of pages	8
Journal	Engineering Fracture Mechanics
Volume	82
DOIs	https://doi.org/10.1016/j.engfracmech.2011.11.016
Publication status	Published - Mar 2012
Externally published	Yes

Keywords

Damage
Microstructure design
Strength
Thermal shock resistance
Ultra-high temperature ceramics

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10.1016/j.engfracmech.2011.11.016

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title = "Temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics",

abstract = "A temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics is established. This model is based on the sensitivities of thermo-physical properties to temperature and the evolution of the control mechanisms of strength with the change of temperature of ultra-high temperature ceramics, and incorporates the effects of micro-crack size, damage evolution and temperature on the thermal shock resistance of ultra-high temperature ceramics. The result shows that introducing micro-cracks into ultra-high temperature ceramic material and controlling damage evolution as the nucleation mode through microstructure design method could significantly improve the TSR, particularly in the corresponding initial thermal shock temperature dangerous zone, and keep the high strength of ultra-high temperature ceramics.",

keywords = "Damage, Microstructure design, Strength, Thermal shock resistance, Ultra-high temperature ceramics",

author = "Weiguo Li and Dingyu Li and Tianbao Cheng and Daining Fang",

year = "2012",

month = mar,

doi = "10.1016/j.engfracmech.2011.11.016",

language = "English",

volume = "82",

pages = "9--16",

journal = "Engineering Fracture Mechanics",

issn = "0013-7944",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics

AU - Li, Weiguo

AU - Li, Dingyu

AU - Cheng, Tianbao

AU - Fang, Daining

PY - 2012/3

Y1 - 2012/3

N2 - A temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics is established. This model is based on the sensitivities of thermo-physical properties to temperature and the evolution of the control mechanisms of strength with the change of temperature of ultra-high temperature ceramics, and incorporates the effects of micro-crack size, damage evolution and temperature on the thermal shock resistance of ultra-high temperature ceramics. The result shows that introducing micro-cracks into ultra-high temperature ceramic material and controlling damage evolution as the nucleation mode through microstructure design method could significantly improve the TSR, particularly in the corresponding initial thermal shock temperature dangerous zone, and keep the high strength of ultra-high temperature ceramics.

AB - A temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics is established. This model is based on the sensitivities of thermo-physical properties to temperature and the evolution of the control mechanisms of strength with the change of temperature of ultra-high temperature ceramics, and incorporates the effects of micro-crack size, damage evolution and temperature on the thermal shock resistance of ultra-high temperature ceramics. The result shows that introducing micro-cracks into ultra-high temperature ceramic material and controlling damage evolution as the nucleation mode through microstructure design method could significantly improve the TSR, particularly in the corresponding initial thermal shock temperature dangerous zone, and keep the high strength of ultra-high temperature ceramics.

KW - Damage

KW - Microstructure design

KW - Strength

KW - Thermal shock resistance

KW - Ultra-high temperature ceramics

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U2 - 10.1016/j.engfracmech.2011.11.016

DO - 10.1016/j.engfracmech.2011.11.016

M3 - Article

AN - SCOPUS:84856576918

SN - 0013-7944

VL - 82

SP - 9

EP - 16

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

ER -

Temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics

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Keywords

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