Results 21 to 30 of about 96,066 (70)

A novel 3D printed compliant ball-end grinding tool with crystal structure: Feasibility and performance analysis

Materials & Design
During grinding complex components with difficult-to-machine materials, compliance grinding tools often experience shortened life and weakened performance due to intense temperature rise. This paper presents a novel solution strategy of preparing crystal-
Mingcong Li, Yun Huang, Wenxi Wang, Shengbo Yan, Yingjie Liu, Lai Zou   +5 more
doaj   +1 more source

The application of epoxy resin polymers by laser induction technologies

Science and Engineering of Composite Materials
The fabrication of robust and high-performance graphene-based electrodes on engineering plastics has garnered significant attention in recent years. In this study, we present a novel methodology to produce porous graphene structures derived from epoxy ...
Yu Chao, Yang Weiwei, Meng Fanxing, Zhao Zhonghai, Cao Fubao, Xing Chengcheng, Du Jingxuan   +6 more
doaj   +1 more source

Multiscale water diffusivity prediction of plain woven composites considering void defects

Science and Engineering of Composite Materials
To reveal the effects of void defects on the diffusivities of plain woven composites, a multiscale analysis framework considering the microscale and mesoscale voids is developed in this study.
Wang Meng
doaj   +1 more source

Experimental studies for evaluation of the removal time of form on concrete using ultrasonic pulse velocity methods

Case Studies in Construction Materials
In this study, the form removal time of concrete was evaluated using ultrasonic pulse velocity (UPV). The evaluation was performed based on the form removal strength specified in the American Concrete Institute (ACI), British Standard (BS), and Korean ...
Wonchang Kim, Jusung Kim, Youngjin Kim, Taegyu Lee, Sungyu Park   +4 more
doaj   +1 more source

Continuum percolation of the realistic nonuniform ITZs in 3D polyphase concrete systems involving the aggregate shape and size differentiation

Science and Engineering of Composite Materials
The interfacial transition zone (ITZ) percolation is an effective parameter reflecting the connectivity of ITZs in cementitious materials, and its emergence may accelerate the penetration of inimical ions.
Lin Jianjun, Wang Yue, Li Mingqi, Chen Huisu, Cao Haiying, Jing Chao   +5 more
doaj   +1 more source

Experimental study on mechanical properties and toughness of recycled steel fiber rubber concrete

Case Studies in Construction Materials
Adding rubber particles to concrete can improve its brittleness, but it also significantly reduces its compressive strength. In order to maintain the compressive strength of concrete unchanged and enhance its tensile strength and toughness, waste steel ...
Man Peng, Yongtao Gao, Jiachen Wei, Yang Han, Xiuli Chen, Xiongjun Kou   +5 more
doaj   +1 more source

Electromagnetic optimization of piezoelectric ceramic and its application in mechanical antenna

IET Nanodielectrics
Mechanical antennas have garnered considerable attention due to their ability to address the challenges posed by the significant size and high energy consumption associated with traditional electric antennas when operating at low frequencies.
Song Gao, Liwei Wang, Jingtong Lu, Shuai Zhang, Hongyu Sun, Kai Huang, Jianchun Xu, Yanan Hao   +7 more
doaj   +1 more source

Anthropomorphic modular gripper finger actuated by antagonistic wire and shape-memory alloy (SMA) springs [PDF]

Mechanical Sciences
The traditional underactuated grippers can only passively adapt to the contour of the object, and the passive contact process may lead to the object slipping, affecting the stability of the grasping process.
L. Sun, L. Sun, Y. Lan, B. Wang
doaj   +1 more source

A strong dependence of sputtering power on c‐axis oriented aluminium nitride on Si (111): A structural and electrical study

IET Nanodielectrics
Growing and controlling the c‐axis orientation of the aluminium nitride (AlN) thin film on unheated Si (111) substrates using reactive magnetron sputtering are challenging.
Sandeep Sanjeeva, Jyothilakshmi Rudresh, K. B. Vinayakumar, K. K. Nagaraja   +3 more
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Siloxane‐containing polyimide films with high heat resistance and low dielectric constant

IET Nanodielectrics
A series of siloxane‐containing polyimide films (PIS) were prepared by copolymerising with rigid aromatic dianhydride, siloxane diamines and six different aromatic diamines.
Song Mo, Lei Zhai, Yi Liu, Gang Han, Yan Jia, Min‐Hui He, Lin Fan   +6 more
doaj   +1 more source