Results 31 to 40 of about 6,404 (261)

Analysis of the service life of wooden bridge structures using structural protection

Case Studies in Construction Materials
This article deals with the use of polyurea contact insulator as structural protection for wooden bridge structures. The waterproof coating is applied to a spruce wood substrate to create a composite element with a protective layer to protect the wood ...
Marek Jašek, Kateřina Stejskalová, Roman Fojtík, Rastislav Ingeli   +3 more
doaj   +1 more source

Resource utilization of composite insulator silicone rubber [PDF]

E3S Web of Conferences, 2020
Composite insulators provide highly effective insulation support, and their application in power transmission lines has seen rapid growth in recent years.
Jiang Yuze, Zhang Yong, Jiang Diwen, Wang Chao, Chen Yimin   +4 more
doaj   +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

MAIN BIRD EXCREMENT CONTAMINATION TYPE CAUSING INSULATOR FLASHOVERS IN 110 kV OVERHEAD POWER LINES IN ESTONIA; pp. 211–224 [PDF]

Oil Shale, 2013
The study aims to elucidate which type of bird excrement contamina­tion causes insulator flashovers in 110 kV overhead power lines in Estonia. Laboratory wetting and bird streamer tests performed on naturally contaminated glass and composite insulators ...
PAUL TAKLAJA, Rein Oidram, JAAN NIITSOO, Ivo Palu   +3 more
doaj   +1 more source

Mechanical Properties of High-Temperature Vulcanized Silicone Rubber Under Acid-Fog With AC Energized

IEEE Access, 2022
Due to excellent anti-pollution performance, composite insulators have been widely used in transmission lines. However, composite insulators present various failures after long-term outdoor operation under environmental, mechanical, and electrical stress.
Zhijin Zhang, Guohui Pang, Xiaodan MA, Tian Liang, Xingliang Jiang   +4 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Characteristics of powdered layer on silicone rubber surface

Journal of Materials Research and Technology, 2021
In recent years, varying degrees of surface pulverization had been found on composite insulators running for years in severe outdoor environment such as dry, high altitude, salt fog and intensive ultraviolet radiation.
Tian Liang, Zhijin Zhang, Xiaohong Ma, Yingzhu Xiang, Huan Huang, Xingliang Jiang   +5 more
doaj   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source