Results 121 to 130 of about 347,437 (244)

High‐Power Hybrid Nanogenerator With Multi‐Degree‐of‐Freedom Mechanical Coupling for Harvesting Water Wave Energy

Advanced Science, EarlyView.
A high‐power hybrid nanogenerator (HP‐HNG) with multi‐degree‐of‐freedom mechanical coupling is reported, integrating multi‐directional wave energy for output to achieve 1 + 1 > 2 energy harvesting. The HP‐HNG achieves a peak output power of 0.764 W, corresponding to a peak power density of 127.303 W m−3. At a wave frequency of 1 Hz, the HP‐HNG delivers
Shuai Ding, Hua Zhai, Hao Gong, Xiao Long, Yuanzhuo Tian, Zhanyong Hong, Long Zheng, Xucong Wang, Xiangyu Chen, Zhong Lin Wang   +9 more
wiley   +1 more source

Synergistic Effect between Corrosion and Wear for Nickel-Aluminium Bronze Sliding against Si3N4 Ceramic Ball in Artificial Seawater

Tribology Online
The present study investigated the tribocorrosion behavior and mechanisms of nickel-aluminum bronze alloys in artificial seawater, offering theoretical support for the advancement and application of marine’s equipment.
Di He, Ying Lian, Yang Li
doaj   +1 more source

Hydrogen‐Bond Enabled Phosphite Based Intrinsic Flame‐Retardant Solid‐Solid Phase Change Materials Using Catalyst/Solvent‐Free Multi‐Component Reaction for Battery Thermal Management

Advanced Science, EarlyView.
The phosphite group endows intrinsic flame retardancy, while the P = O bond enhances intermolecular interactions to realize solid‐solid phase transition. Battery thermal management tests show the materials extend the safe working time of lithium‐ion batteries by 200%. Cone calorimeter tests indicate a 14s delay in ignition time, and reductions of 37.6%,
Changhui Liu, Guangyuan Liang, Yuanzheng Liu, Jiantang Gao, Zeyang Li, Lin Huang, Jiateng Zhao, Junbing Xiao, Xiaoxing Zhong, Jun (Joelle) Wang   +9 more
wiley   +1 more source

Investigation of tribo-corrosion behaviors of SLM-printed CX stainless steel under different loads

Journal of Materials Research and Technology
CX stainless steel, produced through selective laser melting technology, exhibits a predominance of martensite with minor austenite. The fine-grained structure of CX stainless steel promote corrosion resistance, while a high density of dislocations and ...
Xiaojie Zhao, Deli Jia, Songbo Wei, Yang Gao, He Liu   +4 more
doaj   +1 more source

Surface Neuronal‐Like Structuring of High‐Strength CFRP for Enhanced Electromagnetic Interference Shielding

Advanced Science, EarlyView.
This study elucidates the microstructural evolution at the material interface of Ni‐plated plain‐weave carbon fiber fabric following vacuum heat treatment at 500°C–900°C under different current densities, as well as the mechanism underlying the synergistic enhancement of electromagnetic shielding and ductility.
Wei Cheng, Ben Jia, Shuhan Xiang, Biao Chen, Yongjun Zhang, Zhuo Liu, Xiaopeng Wan, Heyuan Huang   +7 more
wiley   +1 more source

Additive Manufacturing of High‐Performance Polymers for Extreme Environments

Advanced Science, EarlyView.
Additive manufacturing of high‐performance polymers for extreme environments is critically reviewed through an integrated chemistry‐processing‐structure‐property‐qualification framework. The review compares fused filament fabrication, selective laser sintering, and direct ink writing, linking rheology and thermal history to crystallization, defect ...
Md Tofazzal Hossain, Mohammed Intishar Nur, Md Shajedul Hoque Thakur, Indranil Dey, Md Mesbahul Maruf, Md Jahid Hasan, Suryasarathi Bose, Muhammad M. Rahman   +7 more
wiley   +1 more source

Tribocorrosion resistance of passivable alloys in 3.5%NaCl aqueous solution

Cailiao gongcheng
The friction pairs， such as the valve core and valves of seawater pumps， are under the conditions of seawater corrosion and wear （referred to as “tribocorrosion”）.
DIAO Wang, WANG Junwei, LU Yi, XIAO Shuaiheng, WEN Wenhui, CHENG Jun, ZENG Buhui, DAI Leyang   +7 more
doaj   +1 more source

Wear mechanism study of exhaust valve system in modern heavy duty combustion engines

, 2011
The increasing demands from environmental legislations are changing the conditions that the valve system is exposed to in heavy duty engines. Increased pressures, higher temperatures and lower amounts of soot which can build up a protective film are some
Hollman, Patrik,, Jacobson, Staffan,, Forsberg, Peter,, P. Hollman, S. Jacobson, P. Forsberg   +5 more
core   +1 more source

ZrCo3B2 and HfCo3B2 Electrodes Go on Stage for Oxygen Evolution Reaction

Advanced Science, EarlyView.
The intermetallic compounds ZrCo3B2 and HfCo3B2 with distinctive chemical bonding features are excellent OER precursors, restructuring into OER‐active electrocatalysts delivering significantly high OER activities compared to the elemental Co, which is obvious from their lower onset potentials and increased obtained current densities.
Fatma Aras, Ulrich Burkhardt, Simone G. Altendorf, Yuri Grin, Iryna Antonyshyn   +4 more
wiley   +1 more source

Corrosion inhibition of imidazoline and porphyrin on hot-pressed impregnated diamond bits in NaCl solution

Jin'gangshi yu moliao moju gongcheng, 2020
The corrosion inhibition behavior of imidazoline and porphyrin in hot pressing impregnated diamond bit matrix material in NaCl solution with pH10 and mass fraction of 20% was studied by electrochemical method, weight loss test and Raman spectroscopy. The
YAO Yuanji, PAN Bingsuo, LIU Zhijiang
doaj