Results 51 to 60 of about 1,735,680 (298)

Atomistic simulations of plasticity heterogeneity in gradient nano-grained FCC metals

Materials & Design, 2022
Gradient nano-grained (GNG) metals are an emerging class of heterogeneous structured materials with extraordinary mechanistic performances and unnatural plasticity mechanisms, which are unachievable in traditional homogeneous nanocrystalline metals. Here,
Like Xu, Zhifeng Huang, Qiang Shen, Fei Chen   +3 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Grain Rotation in Plastic Deformation

Quantum Beam Science, 2019
The plastic deformation behaviors of crystalline materials are usually determined by lattice dislocations. Below a certain particle or grain size, focus is placed on the grain-boundary-mediated mechanisms (e.g., grain rotation, grain boundary sliding ...
Bin Chen, Linli Zhu, Yunchang Xin, Jialin Lei   +3 more
doaj   +1 more source

Deformation nanomechanics and dislocation quantification at the atomic scale in nanocrystalline magnesium

Journal of Magnesium and Alloys, 2020
Classical molecular dynamics (MD) simulation method is employed to study the uniaxial tensile deformation of nanocrystalline magnesium (Mg) of varying grain size levels.
Md. Shahrier Hasan, Rachell Lee, Wenwu Xu   +2 more
doaj   +1 more source

Efficient Coarse‐Grained Superplasticity of a Gigapascal Lightweight Refractory Medium Entropy Alloy

Advanced Science, 2023
Superplastic metals that exhibit exceptional ductility (>300%) are appealing for use in high‐quality engineering components with complex shapes. However, the wide application of most superplastic alloys has been constrained due to their poor strength ...
Yuefei Jia, Shiwei Wu, Yongkun Mu, Long Xu, Chang Ren, Kang Sun, Jun Yi, Yandong Jia, Wentao Yan, Gang Wang   +9 more
doaj   +1 more source

Memristive‐Gated RC‐Delay Synaptic Transistors for Time‐Encoded Analog in‐Memory Computing

Advanced Functional Materials, EarlyView.
A Memristive‐Gated Transistor for Time‐Encoded Analog In‐Memory Computing — By exploiting the RC delay of a self‐rectifying interface‐type memristor, nonlinear I–V distortion is structurally bypassed, enabling 3‐bit nonvolatile memory, spike‐timing‐based analog encoding, and hardware‐calibrated reservoir‐computing validation within a unified device ...
Yun‐Seo Shin, Eunjoo Yoo, Ki‐Hoon Son, Hyun‐Sik Kim, Dae‐Hee Han, Jeong Hyeon Son, Seung Hwan Lee, Hong‐Sub Lee   +7 more
wiley   +1 more source

Influences of Post-Heat Treatment on the Microstructure Evolution and Creep Properties of Ni-Based Superalloy IN718 Fabricated by Electron Beam Melting

Metals, 2022
In this study, the Ni-based superalloy IN718, fabricated using an electron beam melting process, was investigated in as-built and various heat-treated conditions.
Thaviti Naidu Palleda, Santhosh Banoth, Yen-Ling Kuo, Koji Kakehi   +3 more
doaj   +1 more source

Grain-boundary sliding in nanocrystalline fcc metals

, 2001
Molecular-dynamics computer simulations of a model Ni nanocrystalline sample with a mean grain size of 12 nm under uniaxial tension is reported. The microscopic view of grain-boundary sliding is addressed.
Derlet, P.M. (author), Van Swygenhoven, H. (author)   +1 more
core   +1 more source

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

Advanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

Direct Observation of Grain Boundary Sliding in Forsterite Bicrystals

, 2023
Olivine is the most abundant mineral in Earth’s mantle, and its rheology is likely to control upper-mantle convection. While the rheology of olivine is widely studied, little is known about the rheology of olivine grain boundaries and their ...
Singh, Shobhit Pratap, Mecklenburgh, Julian, Marquardt, Katharina, Hansen, Lars, Wheeler, John, Mariani, Elisabetta, Thom, Christopher   +6 more
core   +1 more source