Results 81 to 90 of about 164,543 (307)

Numerical Simulation of Tilted Obstacles Effect on the Water-Al2O3 Nanofluid Heat Transfer in the Internal Flow [PDF]

Iranian Journal of Chemistry & Chemical Engineering
In this research, a novel geometry consisting of a converging-diverging channel with three tilted obstacles is proposed to enhance the heat transfer of water-Al2O3 nanofluid in internal flow. Grid independence and validation have also been performed. The
Ahmad Bedram
doaj   +1 more source

Síntese e caracterização do compósito Al2O3 -YAG e do Al2O3-YAG e Al2O3 aditivados com Nb2O5 Synthesis and characterization of Al2O3 -YAG composite and Al2O3-YAG and Al2O3 with Nb2O5 additives

Cerâmica, 2012
O compósito Al2O3-YAG possui alta resistência à corrosão e à fluência em ambientes agressivos, o que permite vislumbrar aplicações bastante atrativas, tais como aletas de motores a jato e de turbinas a gás. Este compósito também apresenta elevada dureza e alta resistência à abrasão possibilitando o seu emprego em blindagens balísticas.
R. F. Cabral, L. H. L. Louro, M. H. Prado da Silva, J. B. Campos, E. S. Lima   +4 more
openaire   +2 more sources

Lewis Acid Site Engineering in MOF‐Derived Aluminum Oxide/Carbon Composites for Dechlorination of Waste Plastic Pyrolysis Oil

Advanced Functional Materials, EarlyView.
Controlled carbonization of an Al‐MOF partially decomposes its linkers, exposing coordinatively unsaturated Al centers within an oxide/carbon composite. The resulting Lewis acid sites, rather than surface area, govern organochlorine capture: the composite removes chemically diverse organochlorines from waste plastic pyrolysis oil, outperforms a ...
Seong Cheon Kim, Byeongju Jeon, Suk Hyun Lim, Eun Hee Kwon, Nam Sun Nho, Siyoung Q. Choi, Jeasung Park   +6 more
wiley   +1 more source

Influence of pulse current during Spark Plasma Sintering evidenced on reactive alumina–hematite powders [PDF]

, 2011
Spark Plasma Sintering (SPS) is increasingly used. The temperature and current are not independent parameters, making it difficult to separate the current intrinsic role from Joule heating.
Gurt Santanach, Julien, Estournès, Claude, Vincent Bley, Weibel, Alicia, Claude Estournès, Alain Peigney, Bley, Vincent, Chevallier, Geoffroy, Geoffroy Chevallier, Peigney, Alain, Christophe Laurent, Laurent, Christophe, Alicia Weibel, Julien Gurt Santanach   +13 more
core   +1 more source

Dynamic Loading Regulates Meniscus‐Like Matrix Production in Human Mesenchymal Stromal Cell‐Seeded PET Scaffolds

Advanced Healthcare Materials, EarlyView.
Dynamic compression enhances mesenchymal stromal cell proliferation in nonwoven PET scaffolds under chondrogenic differentiation conditions and triggers mechanosensitive transcriptional programs associated with extracellular matrix remodeling. These findings highlight the potential of mechanically stimulated PET scaffolds as a promising platform for ...
Graciosa Quelhas Teixeira, Luisa de Roy, Anna‐Lotta Feldmeier, Mubashir Ahmad, Sofia Pilão, Maria Ahrens, Anita Ignatius, Carsten Linti, Andreas Martin Seitz   +8 more
wiley   +1 more source

Experimental and numerical investigation of Al2O3-SiO2 Nanopowder for stainless steel 304 L [PDF]

Engineering and Technology Journal
Electro-Discharge Machining (EDM) is a unique manufacturing method. Recently developed thermo-electric methods include Nano Powder-Mixed Electric Discharge Machining (NPMEDM), which suspends metallic Nanopowder in a dielectric.
Qasim Sachit, Maan Tawfiq, Muhssn Shamky, Waseem Abbas   +3 more
doaj   +1 more source

Electronic Properties of a-Al2O3

Journal of Nano- and Electronic Physics, 2022
Фізика твердого тіла вивчає фундаментальні властивості твердих, кристалічних або аморфних матеріалів, енергетичних зон (зонних структур або електронних зонних структур) твердих тіл. Вона пояснює діапазон рівнів енергії, які електрони можуть мати всередині, і діапазон енергетичних рівнів, яких вони можуть не мати.
openaire   +2 more sources

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Síntese e caracterização de compósitos de vitrocerâmica do sistema LZS/A12O3-a para aplicações na tecnologia LTCC [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2013Neste trabalho, misturas de precursor vitrocerâmico particulado (matriz vitrocerâmica)
Arcaro, Sabrina
core  

Characterizations and activities of the nano-sized Ni/Al2O3 and Ni/La-Al2O3 catalysts for NH3 decomposition

, 2005
A series of nano-sized Ni/Al2O3 and Ni/La-Al2O3 catalysts that possess high activities for NH3 decomposition have been successfully synthesized by a coprecipitation method. The catalytic performance was investigated under the atmospheric conditions and a
Ge, QJ, 徐恒泳, Li, WZ, Jin, XL, Xu, HY, Zhang, J   +5 more
core   +1 more source