Results 151 to 160 of about 1,571 (276)

Modelling crack tip plastic zones and brittle-ductile transitions

, 1996
Plasticity at crack tips has been modelled as self-organising arrays of dislocations emitted from a source near the crack tip. The model takes into account dislocation shielding, but not blunting.
Hirsch, PB, Roberts, Steve, Roberts, SG
core  

Sustainable Polymer Biocomposites for Food Packaging: Green Nanotechnology, Circular Plastic Upcycling and Smart Functional Materials

Packaging Technology and Science, EarlyView.
Graphical abstract showing the development of biodegradable polymer biocomposites reinforced with natural fibres, green nanoparticles and waste‐plastic upcycling pathways toward sustainable smart food packaging materials ABSTRACT The fundamental hypothesis behind this review is that the combination of biodegradable polymer‐based biocomposites, which ...
Chandra Sekhar Espenti, Jaewoong Lee
wiley   +1 more source

Welding X65 for Sour Service: Microstructural Evolution and Mechanical Degradation of Pulsed GMAW Joints in H₂S Environments. [PDF]

Materials (Basel)
Goswami R, Vora J, Bhattacharya B, Bandhu D, Kumar K, Tamyis NM.   +5 more
europepmc   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Spontaneous crack healing in calcite reveals the influence of dynamic strain evolution and surface chemistry. [PDF]

Nat Commun
Devoe M, P Lisabeth H, Nakagawa S, Hao Z, Tamura N, Wenk HR.   +5 more
europepmc   +1 more source

Efficient water‐soluble blue/red‐emissive carbon dots matching plant absorption spectra: Synthesis, tunable control, and their applications in promoting plant growth

Responsive Materials, EarlyView.
Guided by the spectral demand of plant photosystems, this review summarizes the synthesis, emission regulation, dual‐emission design, and gram‐scale production of CDs for agricultural applications. Spectrally matched blue‐ and red‐emissive CDs enhance plant light utilization by converting underutilized light into photosynthetically active radiation and
Yijing Chen, Ziyue Mu, Haoran Zhang, Xuejie Zhang, Wei Li, Bingfu Lei   +5 more
wiley   +1 more source

Experimental Study on Fatigue Performance of Steel Used in U75V Rails. [PDF]

Materials (Basel)
Xu D, Liu G, Wang X, Liu H.
europepmc   +1 more source

DNA‐Enzyme Hybrid Nanostructures: Functional Materials to Modulate Enzymatic Activity

Small, EarlyView.
DNA–enzyme hybrid nanostructures enable precise spatial and stoichiometric control over enzyme organization, offering a powerful platform to modulate catalytic activity. This review critically evaluates key mechanistic hypotheses, including proximity effects, microenvironment changes, confinement, and stabilization, as well as highlighting ...
Manar Elnaggar, Amelie Heuer‐Jungemann
wiley   +1 more source

Fracture behavior of rod-in-tube layered configurations under three-point bending: an experimental investigation. [PDF]

Sci Rep
Kumar M, Londhe NV, Ramachandra CG, Prabhu MS, Kanti PK, Prakash C, Kumar HGP, Allasi HL.   +7 more
europepmc   +1 more source

Additive Manufacturing of Hot‐Work Tool Steel by In Situ Alloying Using Laser Powder Bed Fusion and Directed Energy Deposition—Strategies to Improve Chemical Homogeneity

steel research international, EarlyView.
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source