Results 81 to 90 of about 209,030 (281)

Toughening β‐Ga2O3 via Mechanically Seeded Dislocations

Advanced Functional Materials, EarlyView.
β‐Ga2O3 is promising for next‐generation semiconductors but its brittleness limits flexible and high‐precision applications. Here, mechanically seeded dislocations introduced by surface deformation improved damage tolerance in (001) β‐Ga2O3. Nanoindentation and characterization show dislocations suppress cleavage cracks by enabling stable plastic ...
Zanlin Cheng, Jiawen Zhang, Peng Gao, Guosong Zeng, Xufei Fang, Wenjun Lu   +5 more
wiley   +1 more source

Thermomechanical modeling of orthogonal cutting including the effect of stick-slide regions on the rake face [PDF]

, 2007
An orthogonal cutting model including the primary and secondary shear zones is pre-sented in this study. The primary shear zone is modeled by a thermomechanical model where the rake contact is represented by two regions of respectively sticking and ...
Budak, Erhan, Molinari, Alain, Özlü, Emre   +2 more
core  

Signatures of granular microstructure in dense shear flows

, 2000
Granular materials react to shear stresses differently than do ordinary fluids. Rather than deforming uniformly, materials such as dry sand or cohesionless powders develop shear bands: narrow zones containing large relative particle motion leaving ...
A Karion, C Josserand, CT Veje, D Howell, Daniel M. Mueth, DM Hanes, DR Scott, E Fukushima, EE Ehrichs, Georges F. Debregeas, Greg S. Karczmar, H-B Mühlhaus, Heinrich M. Jaeger, J Bridgwater, J Rajchenbach, M Oda, MA Hopkins, O Pouliquen, Peter J. Eng, R Khosropour, RM Nedderman, S Grannick, Sidney R. Nagel, TG Drake, U Tüzün   +24 more
core   +1 more source

Ceramic Particle‐Reinforced Medium‐Entropy Alloys With Outstanding Mechanical Properties Prepared by Novel Micro‐LPBF

Advanced Functional Materials, EarlyView.
An innovative medium entropy alloy (MEA) composite material was fabricated via micro laser powder bed fusion (μ‐LPBF) with appropriate nano‐ceramic particles doping and exhibited markedly improved overall performance, including synergistically enhanced strength and ductility, increased hardness and compressive strength, improved wear resistance and ...
Zhonglin Shen, Mingwang Fu
wiley   +1 more source

Analysis of strain localization with a nonlocal plasticity model [PDF]

, 2017
In the present paper a nonlocal plasticity model is described, intended to reproduce the mechanical behaviour of stiff fine-grained soils, including the objective simulation of strain localization; the phenomenon of accumulation of deformations in narrow ...
Gens Solé, Antonio, Mánica, Miguel A., Ruiz, Daniel F., Vaunat, Jean   +3 more
core  

Permeability evolution during progressive development of deformation bands in porous sandstones [PDF]

, 2003
[1] Triaxial deformation experiments were carried out on large (0.1 m) diameter cores of a porous sandstone in order to investigate the evolution of bulk sample permeability as a function of axial strain and effective confining pressure.
Antonellini, Antonellini, Aydin, Aydin, B. T. Ngwenya, Beach, Bruno, Caine, Crawford, Evans, Fowles, Gibson, Grueschow, Hippler, I. G. Main, Jamison, Knipe, Knipe, Knott, Main, Main, Main, Mair, Mair, Manzocchi, Menendez, Moore, Ngwenya, Ngwenya, Ngwenya, O. Kwon, Ogilvie, Popp, Ramsay, Rhett, Rojstaczer, Rudnicki, S. C. Elphick, Scholz, Scott, Shipton, Sibson, Sverdrup, Taylor, Tuefel, Underhill, Wong, Zang, Zhang, Zhu, Zhu, Zoback   +51 more
core   +3 more sources

Biomimetic Ion‐Orchestrated Hierarchical Armored Hydrogel Coating for Robust and Multifunctional Surface Protection

Advanced Functional Materials, EarlyView.
Inspired by the skin‐toughening mechanism of marine sponges, an ion‐orchestrated structural engineering strategy is proposed to regulate the surface microstructure of hydrogel coatings, enabling the in situ formation of a robust armor layer that enhances mechanical integrity and provides multifunctional protection by suppressing fouling attachment and ...
Wenshuai Yang, Ziqian Zhao, Weiyan Zhu, Lu Gong, Yongxiang Sun, Haoyu Yang, Ling Zhang, Wenfei Zhang, Hao Zhang, Fang Zhou, Xuwen Peng, Hongbo Zeng   +11 more
wiley   +1 more source

Orogenic Gold in Transpression and Transtension Zones: Field and Remote Sensing Studies of the Barramiya–Mueilha Sector, Egypt

Remote Sensing, 2019
Multi-sensor satellite imagery data promote fast, cost-efficient regional geological mapping that constantly forms a criterion for successful gold exploration programs in harsh and inaccessible regions.
Basem Zoheir, Mohamed Abd El-Wahed, Amin Beiranvand Pour, Amr Abdelnasser   +3 more
doaj   +1 more source

Deformation Structures From Splay and Décollement Faults in the Nankai Accretionary Prism, SW Japan(IODP NanTroSEIZE Expedition 316): Evidence for Slow and Rapid Slip in Fault Rocks

Geochemistry, Geophysics, Geosystems, 2020
Drilling during IODP NanTroSEIZE Expedition 316 led to the recovery of cores from the basal décollement in the frontal part of the Nankai accretionary prism and from a splay fault branching from the décollement at 25‐km landward of the prism toe.
O. Fabbri, D. L. Goldsby, F. Chester, A. M. Karpoff, G. Morvan, K. Ujiie, A. Yamaguchi, A. Sakaguchi, C. F. Li, G. Kimura, A. Tsutsumi, E. Screaton, D. Curewitz   +12 more
doaj   +1 more source

Plastic response of a 2D amorphous solid to quasi-static shear : I - Transverse particle diffusion and phenomenology of dissipative events

, 2007
We perform extensive simulations of a 2D LJ glass subjected to quasi-static shear deformation at T=0. We analyze the distribution of non-affine displacements in terms of contributions of plastic, irreversible events, and elastic, reversible motions. From
Anaël Lemaître, Christiane Caroli, M. L. Falk   +2 more
core   +3 more sources