Results 11 to 20 of about 14,157 (254)
Atomistic Kinetics of Dislocation-Mediated Grain Growth in Monolayer MoS<sub>2</sub>. [PDF]
Adv Sci (Weinh)Atomic‐resolution in‐situ heating microscopy directly visualizes dislocation‐mediated grain boundary migration and grain growth in monolayer MoS2. Mobile grain boundaries migrate through collective motion of Mo 5|7 dislocations, whereas S 5|7 defects remain largely immobile.
Choi CW +11 more
europepmc +2 more sources
A 3D-Printed SFE-Graded Alloy Mitigates Cryogenic Discontinuous Plastic Flow and Hydrogen Embrittlement. [PDF]
Adv Sci (Weinh)A novel strategy features gradient composition and stacking fault energy‐tuned (CoCrMn)100‐2xFexNix fabricated via in situ alloying additive manufacturing. This design circumvents cryogenic discontinuous plastic flow and hydrogen embrittlement of metallic materials under quasi‐static loading and hydrogen‐rich environment relevant to lunar polar ...
Wu R +11 more
europepmc +2 more sources
Statistical mechanics of kinks on a gliding screw dislocation
Physical Review Research, 2020 The ability of a body-centered-cubic metal to deform plastically is limited by the thermally activated glide motion of screw dislocations, which are line defects with a mobility exhibiting complex dependence on temperature, stress, and dislocation ...
Max Boleininger +5 more
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An Experimental Study of Dislocation Dynamics in GaN
Micromachines, 2023 The dynamics of dislocations introduced through indentation or scratching at room temperature into a few GaN layers that were grown using the HVPE, MOCVD and ELOG methods and had different dislocation densities were studied via the electron-beam-induced ...
Eugene B. Yakimov +2 more
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High-Temperature Heat Pump Using CO2-Based Mixture for Simultaneous Heat and Cold Energy Reservation
Energies, 2023 To leverage temperature glide in evaporation, a transcritcal heat pump using a CO2-based mixture is investigated from a perspective of simultaneous heat and cold energy storage. Coefficient of performance for heating (COPh) and exergy efficiency are used
Chengyu Li +4 more
doaj +1 more source
Energy Science & Engineering, 2020 The organic Rankine cycle is an effective way to recover low‐temperature waste heat, and a mixture working fluid can effectively improve the performance of the organic Rankine cycle.
Jingxiang Lin, Guoliang Qin, Han Yue
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Temperature Below a Gliding Cross Country Ski
Procedia Engineering, 2014 AbstractThe temperature of snow under skating skis was studied with infrared sensors at four positions and three different velocities. To have an indication of causes and consequences of the heating the friction coefficient with a linear tribometer and the pressure distribution were measured as well. The friction increased with velocity.
Schindelwig, K. +4 more
openaire +1 more source
The source, quantity, and spatial distribution of interfacial water during glide-snow avalanche release: experimental evidence from field monitoring [PDF]
The CryosphereGlide-snow avalanches release at the soil–snow interface due to a loss friction which is suspected to be linked to interfacial water. Presently, the formation and distribution of the interfacial water are not well understood and glide-snow avalanches are
A. Fees +4 more
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Determining the drivers for snow gliding [PDF]
Natural Hazards and Earth System Sciences, 2018 Snow gliding is a key factor for snow-glide avalanche formation and soil erosion. This study considers atmospheric and snow variables, vegetation characteristics, and soil properties and determines their relevance for snow gliding at a test site ...
R. Fromm +4 more
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Journal of Materials Research and Technology, 2023 Dislocation-dominated plastic deformation in austenitic NiTi alloys is highly detrimental and it could be suppressed by precipitation of Ni4Ti3. Additionally, at a certain temperature range, not only Ni4Ti3 precipitate but also the B19’ martensite ...
Zhu Li +5 more
doaj +1 more source