Results 41 to 50 of about 28,253 (260)

Fabricating sound copper/thermosetting polyimide joint via in-situ generated chemical bonding by chemical plating and hot pressing

Journal of Materials Research and Technology
The hard-to-weld combination, thermosetting polyimide (PI) and copper (Cu) was strongly joined via a new joining method combining chemical plating and hot pressing.
Yidi Wu, Letong Wang, Jiaxun Li, Licheng Sun, Huihong Liu, Yongbing Li, Zhongqin Lin   +6 more
doaj   +1 more source

Variable Stiffness Flexure Structures Enabled by Phase‐Change Gallium and Adhesive Interfacial Locking for Soft Robotic Applications

Advanced Engineering Materials, EarlyView.
A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim, Sohee John Yoon, Yong‐Lae Park   +2 more
wiley   +1 more source

Wireless, non-invasive, high-resolution thrill sensor for continuous vascular access monitoring of hemodialysis patients

Nature Communications
Hemodialysis is the primary life-sustaining therapy for patients with end-stage renal disease (ESRD). Diagnosing and monitoring the health condition of vascular access (VA) for hemodialysis involves the use of ultrasonic imaging and angiography.
Yicong Wang, Jie Wang, Yuqi Tian, Zhiheng Xu, Mengyao Liu, Lin Zhou, Renhua Lv, Yujun Deng, Jinyun Tan, Linfa Peng, Zhongqin Lin   +10 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Thin-Walled Timber Structures [PDF]

, 2014
Due to their efficiency, lightweight, ease of erection and low cost, steel and aluminium thin-walled structures have become very popular in the construction industry over the past few decades. Applications include roof and wall systems (purlins and girts), storage racks, and composite concrete and steel slabs. The effectiveness of these structures lies
Gilbert, B. P., Hancock, S. B., Bailleres, Henri   +2 more
openaire   +2 more sources

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Influence of die morphology on microstructure and mechanical performance of friction forge riveted aluminum alloy sheets

Materials & Design
To address the issues of excessive riveting force, high noise and insufficient strength of aluminum alloy interference fit riveting, this study applies the friction forge riveting (FFR) process to join AA2A12-T4 sheets using AA7075-T651 rivets ...
Weilun Zheng, Zixuan Chen, Xuerui Wang, Bowen Zhang, Hailang Wan, Peng Li, Xiaojie Wang, Yunwu Ma, Yongbing Li, Zhongqin Lin   +9 more
doaj   +1 more source

Diagnostics of thin-walled structures of complex geometry and structure

Structural Mechanics of Engineering Constructions and Buildings, 2021
The main stages of the birth of thin-walled structures, changes in their relative thickness and mass of a unit area are given; ways of creating perfect thin-walled structures are indicated.
Nukh M. Yakupov, Samat N. Yakupov
doaj   +1 more source