Results 101 to 110 of about 164,543 (307)

Novel Combined Feeding Approach to Produce Quality Al6061 Composites for Heat Sinks

High Temperature Materials and Processes, 2019
This elementary work aims to address agglomeration and non-uniform dispersion of reinforcement particles in stir casting using Al6061 alloy (AA 6061) as a matrix and Aluminium oxide (Al2O3) as reinforcement particles.
Asokan Manivannan, Rathinasabapathy Sasikumar, Khadar Shaik Dawood Abdul, Khan Mohammed Sadique   +3 more
doaj   +1 more source

Assessment of the properties of sprayed coatings for the thermal barrier applied to the piston of internal-combustion engine

Mechanical Engineering Journal, 2014
The properties of three thermal sprayed coatings (Coating①: Top coat; Al2O3, Bond coat; Ni-Cr, Coating②: Top coat; YSZ, Bond coat; CoNiCrAlY, Coating③: SUS316) were compared to select the effective sprayed coating for giving the thermal barrier to the Al
Keiji SONOYA, Masashi SEKINE, Masanobu NAKAMURA   +2 more
doaj   +1 more source

Giant Orbital Rashba–Edelstein Effect in Crystalline Cu2O/Cu Heterostructures

Advanced Materials, EarlyView.
An enhanced orbital Rashba–Edelstein effect is demonstrated in a crystalline Cu2O/Cu heterostructure, compared to naturally oxidized CuOx structures, highlighting the critical role of crystallinity and interface control in orbital torque generation. The resulting spin torque conductivity exceeds that of Pt, indicating the potential of orbital torque ...
San Ko, Jaimin Kang, Su Jae Kim, Hanhwi Jang, Do‐Kyeong Nam, Minseok Kang, Sunghoon Kim, Yeon Sik Jung, Se‐Young Jeong, Kab‐Jin Kim, Byong‐Guk Park   +10 more
wiley   +1 more source

CHARACTERIZATION OF SPECIFIC HEAT CAPACITY OF WATER-ALUMINUM OXIDE-BASED NANOFLUIDS

Rekayasa Mesin
Since the advent of nanofluids, engineers have expected major gains in thermal‐system efficiency. Yet a key property—specific heat capacity (Cp)—remains poorly understood, because Cp is not a single value but a spectrum governed by nanoparticle size ...
Roy Waluyo, Deendarlianto Deendarlianto, Indarto Indarto, Dwi Yuliaji, Sunandi Kharisma, Shendy Akbar Maryadi, Ryan Oktaviandi, Mulya Juarsa   +7 more
doaj   +1 more source

High‐Entropy Ceramic‐Enhanced Deformable Triboelectric Nanogenerator for Noncontact Biomechanical and Raindrop Energy Harvesting

Advanced Materials, EarlyView.
A large‐area, deformable high‐entropy‐ceramic (HEC)‐doped triboelectric nanogenerator with a trilayer architecture is developed, consisting of an HEC‐doped triboelectric layer, a graphite‐like textile charge‐storage layer, and stretchable carbon black electrodes.
Shengyou Li, Wei‐Chen Peng, Syun‐Hong Chou, Zhi‐Xian Yan, Jiann‐Yeu Chen, Dun‐Jie Jhan, Wei‐Chun Yang, Shi‐Hong Chen, Yi‐Lin Huang, Cheng‐Hung Tsai, Ming‐Yen Lu, Heng‐Jui Liu, Cheolmin Park, Ying‐Chih Lai   +13 more
wiley   +1 more source

Oxygen defects in amorphous Al2O3: A hybrid functional study [PDF]

The electronic properties of the oxygen vacancy and interstitial in amorphous Al2O3 are studied via ab initio molecular dynamics simulations and hybrid functional calculations.
Guo, Zhendong, Ambrosio, Francesco, Pasquarello, Alfredo   +2 more
core   +2 more sources

Barrier‐Assisted Plasma Doping for Spatially Selective Resistance Engineering in MoS2 Transistors

Advanced Materials, EarlyView.
Barrier‐assisted NH3 plasma doping enables damage‐free, spatially selective carrier modulation in monolayer MoS2 transistors. An ultrathin pV3D3/Al2O3 protective‐dielectric stack acts as a chemical filter that allows NHx radicals to reach the MoS2 surface while blocking plasma damage. This process achieves a high electron concentration of 4.3 × 1013 cm−
Inseong Lee, Joonho Park, Seungsun Yoo, Seunghyun Yu, Mingu Kang, Seohak Park, Min Kyu Lee, Hyeongjin Lim, Dongyoung Kim, Kunwoo Roh, Sejin Kim, Kihyuk Kim, Wonbae Ahn, Kibum Kang, Yong‐Hoon Kim, Sung‐Yool Choi   +15 more
wiley   +1 more source

Effects of Al2O3 on the thermal stability, glass configuration of Yb3+-doped TeO2-K2O-ZnO-Al2O3 based tellurite laser glasses

, 2013
A novel of Yb3+-doped TeO2-K2O-ZnO-Al2O3-based tellurite glasses with both good thermal stability and high-emission cross-section was prepared by verifying Al2O3 additions.
Li, Weinan, Peng, Bo, Wang, Cuicui, Lu, Min, Wang, Pengfei   +4 more
core   +1 more source

Electrocatalyst/Semiconductor Interfaces in Photoelectrocatalysts: Mechanistic Analysis of the Impact of Nanoparticle Electrocatalyst Coverage on Performance

Advanced Materials, EarlyView.
Reducing Ni nanoparticle coverage on n‐Si photoanodes enhances photovoltage by promoting thicker interfacial SiOx formation during photoelectrochemical oxygen evolution reaction (OER). Experiments, analytical modeling, and finite‐element simulations reveal that coverage‐dependent chemical interface evolution, rather than geometric effects alone ...
Aarti Mathur, Ahmet Sert, Suljo Linic
wiley   +1 more source

Obtenção de H2 através da decomposição do CH4 utilizando catalisadores metálicos suportados [PDF]

, 2007
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-graduação em QuímicaEste trabalho descreve a síntese de catalisadores compostos por uma fase ativa contendo Ni e Co em diferentes ...
Nuernberg, Giselle de Boit
core