scholarly journals Fracture Considerations for the Thermal Shock Resistance of Porous Ceramic Materials

2020 ◽  
Vol 510 ◽  
pp. 052038
Author(s):  
Yunxia Zhang ◽  
Baolin Wang ◽  
Yanliang Shang
Keyword(s):  
Thermal Shock ◽  
Thermal Shock Resistance ◽  
Porous Ceramic ◽  
Ceramic Materials ◽  
Shock Resistance ◽  
Porous Ceramic Materials

scholarly journals An Investigation of Thermal Shock in Porous Clay Ceramics

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
F. W. Nyongesa ◽  
N. Rahbar ◽  
S. K. Obwoya ◽  
J. Zimba ◽  
B. O. Aduda ◽  
...  
Keyword(s):  
Thermal Shock ◽  
Residual Strength ◽  
Room Temperature ◽  
Porous Ceramic ◽  
Ceramic Materials ◽  
Shock Resistance ◽  
Bend Tests ◽  
Clay Ceramics ◽  
Porous Ceramic Materials

The thermal shock resistance of porous ceramic materials is often characterized by the Hasselman parameters. However, in other scenarios, the room-temperature residual strengths after thermal shock are also used to quantify the damage due to thermal shock. This paper attempts to link the measured residual strengths to the dominant crack features that are introduced due to thermal shock in porous clay ceramics produced by the sintering of clay powders with well-controlled size ranges. Residual strength estimates from bend tests are compared with fracture mechanics predictions. The implications of the residual strength results are then discussed for the characterization of damage due to thermal shock.

scholarly journals Evaluation of thermal shock resistance in ceramic materials.

1989 ◽  
Vol 38 (435) ◽  
pp. 1415-1421 ◽  
Author(s):  
Shiro AKIYAMA ◽  
Yuji KIMURA ◽  
Michio SEKIYA
Keyword(s):  
Thermal Shock ◽  
Thermal Shock Resistance ◽  
Ceramic Materials ◽  
Shock Resistance

Advanced Ceramics for Environmental Protection

1994 ◽  
Vol 344 ◽  
Author(s):  
Jeffrey A. Chambers
Keyword(s):  
Silicon Carbide ◽  
Thermal Shock ◽  
Thermal Shock Resistance ◽  
Ceramic Materials ◽  
Environmental Applications ◽  
Fiber Reinforced ◽  
Gas Filtration ◽  
Advanced Ceramic ◽  
Hot Gas ◽  
Shock Resistance

AbstractAdvanced ceramic materials offer significant thermodynamic efficiency advantages over metals and alloys because of their higher use temperatures. Using ceramic components results in higher temperature industrial processes which convert fuels to energy more efficiently, reducing environmental emissions. Ceramics have always offered high temperature strength and superior corrosion and erosion resistance. However, brittleness, poor thermal shock resistance and catastrophic failure have slowed industrial adoptions of ceramics in environmental applications.This paper will focus on environmental applications of three new advanced ceramic materials that are overcoming these barriers to industrial utilization through improved toughness, reliability, and thermal shock performance. PRD-66, a layered oxide ceramic with outstanding thermal shock resistance and high use temperature with utility in catalyst support, insulation, and hot gas filtration applications, is discussed. Tough silicon carbide fiber reinforced silicon carbide (SiC/SiC) and carbon fiber reinforced silicon carbide (C/SiC) ceramic composites made by chemical vapor infiltration, and silicon carbide particulate reinforced alumina (SiCp/A12O3) composites made through Lanxide Corporation's DIMOX™ directed metal oxidation process are described. Applications of these materials to pollution reduction and energy efficiency in medical and municipal waste incineration, heat management, aluminum remelting, pyrolysis, coal combustion and gasification, catalytic pollution control, and hot gas filtration, will be discussed.

Estimation of Thermal Shock Resistance by Infrared Radiation Heating and Water Flow Cooling Techniques

2006 ◽  
Vol 317-318 ◽  
pp. 339-342
Author(s):  
Sawao Honda ◽  
Hiroaki Tanaka ◽  
Hideo Awaji
Keyword(s):  
Thermal Shock ◽  
Thermal Shock Resistance ◽  
Rapid Heating ◽  
Ceramic Materials ◽  
Shock Resistance ◽  
Testing Techniques ◽  
Experimental Values ◽  
Definition Of ◽  
Increasing Temperature ◽  
Good Agreement

Thermal shock is a mechanism often leading to failure of ceramic materials that may occur during rapid heating or cooling. These tests were performed in order to compare the thermal shock resistance of ceramic materials by cooling with that of the heating method and hence to evaluate parameters such as thermal shock strength (R1c) and thermal shock fracture toughness (R2c). During the present study, thermal shock resistance of alumina and mullite ceramics was estimated experimentally and theoretically using the thermal shock parameters. The critical thermal stress at the onset of thermal shock fracture was calculated using fracture time, which is measured by an acoustic emission. Results show that thermal shock parameters of alumina specimens decreased with increasing temperature of fracture point. This effect can be attributed to the temperature dependence of the thermal properties. The experimental values of thermal shock parameters evaluated by IRH and WFC techniques were in good agreement at the temperature of fracture point. The thermal shock parameters enabled the definition of a unified thermal shock resistance of ceramics, which is independent of the nature of the testing techniques.

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