Results 51 to 60 of about 87,988 (310)

Experimental study on internal one-dimensional heat conduction law of granite under high-temperature thermal shock

Yantu gongcheng xuebao
The deteriorating effects of heat on physical and mechanical properties of rock are determined by the combination of the factors such as the structure, mineral composition and mineral distribution of the rock. The high-temperature thermal shock tests are
LI Xiaoke 1, XI Baoping 1, 2, CAI Jiahao 1, XIE Jin 1, JIA Peng 1, MA Xiao 3
doaj   +1 more source

Thermische Schädigung durch Erosion und Rißbildung unter kurzzeitiger Bestrahlung

, 2022
Thermal damage involves a broad range of physical phenomena as thermally induced structural degradation, crack and propagation, and the ablation of material.
Bahr, H.-A., Schultrich, B., Weiss, H.-J.   +2 more
core  

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

The effects of aging on the cyclical thermal shock response of a copper-beryllium alloy as a substrate of cooling wheel in planar flow casting process

Materials Research Express, 2020
In planar flow casting (PFC) process, the molten alloy from nozzle exerts cyclical thermal shock on the substrate surface of cooling wheel and the cyclical thermal shock causes damage to the substrate surface in the form of defects.
Deren Li, Zhichao Lu
doaj   +1 more source

Crack patterns corresponding to the residual strength plateau of ceramics subjected to thermal shock

, 2012
The formation mechanism of the residual strength plateau of ceramics subjected to thermal shock is addressed. A set of thermal shock experiments of 99Al(2)O(3) are conducted, where the thin specimens of 1 mmx10 mmx50 mm exhibit parallel through edge ...
Li J, Yan P, Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China., Hou HL, Jiang, CP, Jiang CP, Song F(宋凡), Wu XF   +7 more
core   +1 more source

Intrinsic Photoactive Star ZnPc–Poly(glutamate) Nanoplatforms for Multimodal Glioblastoma Therapy and Brain‐Targeted Delivery

Advanced Functional Materials, EarlyView.
An intrinsic photoactive star‐shaped zinc phtalocyanine‐poly(L‐glutamic acid) (ZnPc‐PGA) nanoplatform for multimodal glioblastoma (GBM) therapy and brain‐targeted elivery. A ZnPc‐PGA‐based multifunctional theranostic nanocarrier platform enables image‐guided, multimodal GBM therapy. ZnPc‐PGA nanocarriers support the integration of fluorescence imaging,
Amina Benaicha‐Fernández, Teodora Ranđelović, Ana Armiñán, Víctor Sebastián, Manuel Fuentes, Cristián Huck‐Iriart, Esther Masiá, Paula Carrascosa‐Marco, Pablo Juanes‐Velasco, Snežana Đorđević, Clara Bayona, Ignacio Ochoa, Maria Medel, Inmaculada Conejos‐Sánchez, María J. Vicent   +14 more
wiley   +1 more source

Impact fracturing of rock-like material using carbon dioxide under different temperatures and pressures

Journal of Rock Mechanics and Geotechnical Engineering
Unconventional resources (oil, gas, and geothermal) are often buried deep underground within dense rock strata and complex geological structures, making it increasingly difficult to create volumetric fractures through conventional hydraulic fracturing ...
Shaobin Hu, Zhengyong Yan, Chun Zhu, Manchao He, Shuogang Pang   +4 more
doaj   +1 more source

Effect of Repeated Thermal Shock on Mechanical Properties of ZrB2-SiC-BN Ceramic Composites

The Scientific World Journal, 2014
ZrB2-20 vol.% SiC-10 vol.% h-BN (particles) ceramic composites (ZSB) were fabricated by hot pressing under inert gas protected. ZSB samples with mean size 75 × 55 × 40 mm3 were heated using current heating method and then cooled down to low temperature ...
Gang Li, Hongbo Chen
doaj   +1 more source

Evolution Mechanisms of Thermal Shock Cracks in Ceramic Sheet

, 2016
Knowledge of crack initiation, propagation, and corresponding thermal shock failure evolution is prerequisite for effective maintenance of civil engineering so as to avoid disaster.
Sheng SL, Yuan WJ, Xu, XH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China., Lin ZK, 许向红   +4 more
core   +1 more source

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

Advanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He, Wenbo Wang, Simon Schweidler, Yanjiao Ma, Ben Breitung, Torsten Brezesinski   +5 more
wiley   +1 more source