Numerical Study of Thermal Shock Damage Mechanism of Polycrystalline Ceramics
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]
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
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]
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]
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]
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
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]
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
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
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

