Results 51 to 60 of about 547,292 (342)

Thickness-dependent thermal properties of amorphous insulating thin films measured by photoreflectance microscopy [PDF]

, 2017
In this work, we report on the measurement of the thermal conductivity of thin insulating films of SiO2 obtained by thermal oxidation, and Al2O3 grown by atomic layer deposition (ALD), both on Si wafers.
Al Mohtar, A., Chapuis, P.O., Dobson, P., Gomès, S., Matvejeff, M., Ritasalo, R., Roger, J.P., Stormonth-Darling, J., Tessier, G.   +8 more
core   +3 more sources

A study of Ni/La-Al2O3 catalysts: A competitive system for CO2 methanation

Applied Catalysis B: Environmental, 2019
Ni/La-γ-Al2O3 samples containing 13.6 wt.% Ni and a variable amount of lanthana (0, 4, 14 and 37 wt.%) were prepared by incipient wetness impregnation, using silica-free γ-Al2O3 support.
G. Garbarino, Chongyang Wang, Tullio Cavattoni, E. Finocchio, P. Riani, M. Flytzani-Stephanopoulos, G. Busca   +6 more
semanticscholar   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Enhanced Long-term Stability and Carbon Resistance of Ni/MnxOy-Al2O3 Catalyst in Near-equilibrium CO2 Reforming of Methane for Syngas Production

Bulletin of Chemical Reaction Engineering & Catalysis, 2020
Herein we study the catalytic activity/stability of a new generation of cheap and readily available Ni and Al-based catalysts using two Mn precursors, namely Mn(NO3)2 and Mn(EDTA)2- complex in the reaction of CO2 reforming of methane. In this respect, Ni/
Baya Djebarri, Fouzia Touahra, Nadia Aider, Ferroudja Bali, Moussa Sehailia, Redouane Chebout, Khaldoun Bachari, Djamila Halliche   +7 more
doaj   +1 more source

The effect of reinforcement ratio on corrosion properties in Al2O3 reinforced composites with AA2024 aluminum matrix produced by hot pressing

Gazi Üniversitesi Fen Bilimleri Dergisi, 2023
In this study, corrosion properties of AA2024 aluminum alloy matrix composite materials reinforced with Al2O3 in three different ratios were investigated.
Hasan KARABULUT, Kubilay KARACİF
doaj   +1 more source

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

Advanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani, Miguel Angel Selles, Maziar Ramezani   +2 more
wiley   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Research Regarding Aluminium Eloxation from Phosphoric Acid Electrolyte

Acta Universitatis Cibiniensis. Series E: Food Technology, 2014
The study presents the influence of production parameters on the aluminium eloxation from H3PO4 solution. The thickness and aspect of the deposited Al2O3 were determined.
Cretu Carmen Monica
doaj   +1 more source

The Investigation of Electrochemical Corrosion Behaviour of Fe Matrix Composites at Room and Elevated Temperatures

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020
In this study,pure Fe and Fe matrix composites (5 wt. % nano-Al2O3, 5wt. % micron-B4C and 2.5 wt. % nano-Al2O3-2.5wt. % micron-B4C) were manufactured via powder metallurgy.
Fatih Aydın, Mehmet Akif Erden
doaj   +1 more source

Application of Ceramic Injection Moulding and Pressure Infiltration to the Manufacturing of Alumina/AlSi10Mg Composites [PDF]

Archives of Metallurgy and Materials, 2018
Ceramic injection moulding and gas pressure infiltration were employed for the manufacturing of alumina/AlSi10Mg composites. Porous ceramic preforms were prepared by mixing alumina powder with a multi-binder system and injection moulding of the powder ...
G. Matula
doaj   +1 more source