Results 71 to 80 of about 101,401 (310)

Dynamic atomic-scale electron avalanche breakdown in solid dielectrics

Nature Communications
Electron avalanche breakdown plays a pivotal role in determining the efficiency and reliability of semiconductors and insulators in micro-nanoelectronics and power systems.
Jian Wang, Zhong-Hui Shen, Wei Li, Run-Lin Liu, Yu-Lin Duan, Yang Shen, Han-Xing Liu, Ce-Wen Nan   +7 more
doaj   +1 more source

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

Advanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim, Antônio Rogério de Souza, Tatiana Bendo, Aloisio Nelmo Klein, Rodrigo Perito Cardoso   +4 more
wiley   +1 more source

Dramatically enhanced electrical breakdown strength in cellulose nanopaper

AIP Advances, 2016
Electrical breakdown behaviors of nanopaper prepared from nanofibrillated cellulose (NFC) were investigated. Compared to conventional insulating paper made from micro softwood fibers, nanopaper has a dramatically enhanced breakdown strength.
Jianwen Huang, Yuanxiang Zhou, Zhongliu Zhou, Rui Liu   +3 more
doaj   +1 more source

Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding

Advanced Engineering Materials, EarlyView.
This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou, Mohammed Benwadih, Arnaud Gabas, Lina Kadura, Minh‐Quyen Le, Daniel Grinberg, Pierre‐Jean Cottinet   +6 more
wiley   +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

Experimental Study on Trap Characteristics of Nano-Montmorillonite Composite Pressboards

Energies, 2018
To improve space charge properties and the breakdown strength of insulation pressboard, nano-modifications with nano-montmorillonite fillers are developed using nanocomposite techniques in this study.
Qingguo Chen, Jiaxin Sun, Minghe Chi, Jinfeng Zhang, Peng Tan   +4 more
doaj   +1 more source

Cyclic Injection to Enhance Hydraulic Fracturing Efficiency: Insights from Laboratory Experiments

Geofluids, 2020
In hydraulic fracturing applications, there is substantial interest to reduce the formation breakdown pressure. Previous research results show that the cyclic injection method can be used to reduce that pressure.
Hao Kang, Jincai Zhang, Xin Fan, Zhiwen Huang   +3 more
doaj   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Effect of TiO2 size factor on the electrical properties of polyethylene matrix dielectrics

Results in Physics, 2018
In this study, the TiO2 nanoparticles and TiO2 nanofibers were chosen as inorganic fillers to dope into the linear low density polyethylene (LLDPE).
Qingguo Chi, Xubin Wang, Wei Zhao, Changhai Zhang, Tiandong Zhang, Xuan Wang, Qingquan Lei   +6 more
doaj   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source