Results 31 to 40 of about 1,218 (181)

Mechanically Assisted Magnetic Actuation in Ceramic‐Based Microscrolls for Fast and Durable Soft Robotic Systems

Advanced Materials, EarlyView.
Ceramic‐based V2O5/Fe3O4 hybrid films are shaped into butterfly‐proboscis‐inspired microscroll actuators. Magnetic triggering initiates unrolling, while geometry‐programmed elastic strain energy drives rapid recoil, enabling fast, reversible, durable, and load‐bearing actuation under near‐field magnetic stimulation.
Semi Kim, Shravan R. Kousik, Petia Atanasova, Eberhard Goering, Joachim Bill, Zaklina Burghard   +5 more
wiley   +1 more source

Frustrated Lewis Pairs and Metallic Ni Synergistically Enabled Low‐Temperature Hydrogenolysis of Lignin Models

Advanced Science, EarlyView.
Nickel–aluminum composite oxide (NiAlOx‐300) derived from NiAl layered double hydroxide showed high activity for hydrogenolysis of various lignin models. Especially, hydrogenolysis of benzyl phenyl ether could be efficiently proceeded at 20°C and 1 MPa H2.
Jinpeng Liang, Ziyi Ma, Zhaoxi Cai, Kongqian Liang, Chenglei Xiao, Sitong Chen, Na Wang, Zhimin Xue, Chao Xie, Jinliang Song   +9 more
wiley   +1 more source

K+‐Triggered Defect Engineering and Proton‐Coupled Storage in V2O5·nH2O for Advanced Zn‐Ion Thin‐Film and Microbatteries

Advanced Science, EarlyView.
K+ pre‐intercalation in V2O5·nH2O induces interlayer contraction, oxygen‐vacancy formation, and mixed‐valence states, activating defect‐mediated proton‐dominated transport. This enables cooperative H+/Zn2+ storage with enhanced kinetics and stability. The resulting Zn‐based thin‐film and microbatteries deliver high areal energy and capacity, offering a
Jingli Luo, Sanat Nalini Paltasingh, Bastola Narayan, Yijia Zhu, Debashish Das, Shuhui Li, Firoz Alam, Subhra R. Pattanayak, Sijin Liu, Tharangattu N. Narayanan, Georgios Nikiforidis, Gopinathan Sankar, Ivan P. Parkin, Saroj Kumar Nayak, Buddha Deka Boruah   +14 more
wiley   +1 more source

Tuning Local Modulus at Liquid Metal‐Polymer Interfaces Regulates Electrocaloric Effect in Ferroelectric Nanocomposites

Advanced Electronic Materials, EarlyView.
Liquid metal nanoparticles create mechanically compliant polymer interfaces that facilitate reversible dipolar reorientation under electric fields, whereas rigid interfaces impose stronger local constraints. This soft–rigid interface comparison reveals local interfacial modulus as a key parameter for tuning electrocaloric entropy change in ...
Tian Yao, Shanyu Zheng, Binzhou Sun, Zhenhua Ma, Feiyu Zhang, Lu Yu, Qiang Li, Ruhong Luo, Feihong Du, Yifan Zhao, Yezhan Lin, Chunyu Wang, Xin Chen, Shi‐Yang Tang, Tiannan Yang, Xiaoshi Qian   +15 more
wiley   +1 more source

Effect of microstructure and mechanical properties on cutting force of different cast irons with similar tensile strength [PDF]

China Foundry, 2019
Flake graphite iron, compacted graphite iron and spheroidal graphite iron with various tensile strengths were cast. They were selected and grouped according to roughly the same tensile strength, and then the main cutting force in each group was ...
Jiang-zhuo Ren1, Zong-liang Li2, Yi Xiong2   +2 more
doaj   +1 more source

Development and characterisation of low-cost powder metallurgy Ti–Cu–Fe alloys

Journal of Materials Research and Technology, 2023
The high cost of Ti alloys is still a primary hindering factor for their wider adoption in different engineering sectors in which they would bring significant benefits. This study analysed the simultaneous addition of cheap alloying elements (i.e. Cu and
L. Bolzoni, F. Yang, M. Paul
doaj   +1 more source

Differences in predominant collagen fiber orientation between dorsal and plantar trabecular bone tracts of adult mule deer calcanei suggest strain‐mode‐specific adaptation

The Anatomical Record, EarlyView.
Polarized microscopic images of the outer bone cortex (a and b) and deeper trabecular bone (c and d) of the deer calcaneus in thin cross‐sections. The brighter gray levels reflect more oblique‐to‐transverse collagen fibers in the compression/dorsal bone (a, c) and the darker gray levels reflect more longitudinal collagen in the tension/plantar bone (b,
John G. Skedros, John T. Cronin, Chad S. Mears, Brett W. Richards   +3 more
wiley   +1 more source

Effect of microstructure on the cleavage fracture stress of high-speed railway wheel steel

工程科学学报, 2016
The microstructures with different grain sizes and pearlite interlamellar spacings of high-speed railway wheel steel with a carbon mass fraction of 0.54% were achieved by heat treatment at different austenitizing temperatures and cooling rates. Notched 3-
GONG Shuai, REN Xue-chong, CHEN Gang, ZHAO Hai, JIANG Bo   +4 more
doaj   +1 more source

Automatic measurement of pearlitic interlamellar spacing with computer image processing.

ISIJ International, 1990
For metallurgical studies or routine control of eutectoid steels, it is necessary to perform automatic measurement of pearlitic interlamellar spacing. Various methods, using a combined system of a scanning electron microscope (SEM) and an image analyzer (IA) have been compared and the optimum procedure has been studied.
Petitgand, H., Benoit, D., Moukassi, M., Debyser, B.   +3 more
openaire   +2 more sources

Nacre‐inspired layered composite with excellent mechanical support and osteogenic potential for cervical interbody cage

BMEMat, EarlyView.
The cervical interbody cage needs to take both biomechanical and biological requirements into account. Here, a new‐style degradable, multicomponent, and bioinspired nacre‐like cervical interbody cage composite, which exhibits promising mechanical‐support‐related behavior and osteogenesis‐related potential, is designed and prepared.
Xiu‐Wu Guo, Shao‐Meng Wen, Tian‐Yu Xing, Yang Zhou, Chun‐Xin Wang, Chang Ge, Si‐Ming Chen, Wen‐Zhi Zhang, Shu‐Hong Yu   +8 more
wiley   +1 more source