Results 21 to 30 of about 87,988 (310)

Numerical Study of Thermal Shock Damage Mechanism of Polycrystalline Ceramics

open access: yesFrontiers in Materials, 2021
A dual-scale model is proposed to study the effect of microstructure parameters (grain size and grain boundary fracture energy) on the thermal shock damage mechanism on an example of alumina.
Zhenyuan Gong   +8 more
doaj   +1 more source

Thermal shock fragmentation of Mg silicates within scoriaceous micrometeorites reveal hydrated asteroidal sources [PDF]

open access: yes, 2017
Scoriaceous micrometeorites are highly vesicular extraterrestrial dust particles that have experienced partial melting during atmo - spheric entry. We report the occurrence of clusters of anhedral relict forsterite crystals within these particles that ...
Suttle, M   +8 more
core   +1 more source

Evolution mechanism of the physical properties and thermal conductivity of thermal shock granite under chemical immersion

open access: yes工程科学学报, 2022
To exploit the geothermal energy from low penetration rocks at a depth of 3–10 kilometers below the ground surface, an artificial geothermal system usually must be built.
Ji-liang PAN   +4 more
doaj   +1 more source

Thermal Shock Resistance and Thermal Erosion Resistance at 1 350 ℃ of Si/Yb2Si2O7 Coatings on Surface of SiCf/SiC Composites [PDF]

open access: yesCailiao Baohu
In order to study the thermal shock resistance and thermal erosion resistance of Si/Yb2 Si2 O7 coatings at 1 350 ℃, Si/Yb2 Si2 O7 coatings were prepared on SiCf/SiC composites by vacuum plasma spraying technology.
CHEN Yicheng, DENG Yangfang, ZHANG Le, WEI Lin, LI Qilian, ZHOU Guodong
doaj   +1 more source

The effect of Y2O3 addition on thermal shock behavior of magnesium aluminate spinel [PDF]

open access: yesScience of Sintering, 2009
The effect of yttria additive on the thermal shock behavior of magnesium aluminate spinel has been investigated. As a starting material we used spinel (MgAl2O4) obtained by the modified glycine nitrate procedure (MGNP).
Pošarac Milica   +4 more
doaj   +1 more source

Nanostructured zirconia layers as thermal barrier coatings [PDF]

open access: yesINCAS Bulletin, 2011
The coatings obtained by thermal spray are used both as antioxidant and connection materials (e.g. MCrAlY type alloys) as well as thermal barrier coatings (e.g. partially stabilized zirconia oxide with yttria oxide).
Radu Robert PITICESCU   +3 more
doaj   +1 more source

Dimension limit for thermal shock failure

open access: yes, 2014
We analytically present the characteristic dimensional limit below which the thermal shock failure of ceramics never occurs. This limit, together with the critical temperature difference, separates the state space of the ceramics under thermal shock into
Shao YF(邵颖峰)   +6 more
core   +1 more source

INCAS QUICK THERMAL TEST SHOCK INSTALLATION - QTS1 [PDF]

open access: yesINCAS Bulletin, 2009
From the assembly of the wear factors which act on the “hot parts” of the turbo engines,respectively on the protective coatings, the thermal shock acts the most perturbing.The behavior of the materials at thermal shock is evaluated at present on unique ...
Constantin VILCU   +4 more
doaj   +1 more source

Thermal shock resistance behavior of a functionally graded ceramic: Effects of finite cooling rate

open access: yesTheoretical and Applied Mechanics Letters, 2014
This work presents a semi-analytical model to explore the effects of cooling rate on the thermal shock resistance behavior of a functionally graded ceramic (FGC) plate with a periodic array of edge cracks.
Zhihe Jin, Yuezhong Feng
doaj   +1 more source

Enhanced Thermal Shock Resistance of Ceramics through Biomimetically Inspired Nanofins

open access: yes, 2010
We propose here a new method to make ceramics insensitive to thermal shock up to their melting temperature. In this method the surface of ceramics was biomimetically roughened into nanofinned surface that creates a thin air layer enveloping the surface ...
孟松鹤   +4 more
core   +1 more source

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