Results 61 to 70 of about 136,476 (299)
Platinum/ceria/alumina catalysts on microstructures for carbon monoxide conversion [PDF]
, 2005 Platinum/ceria/alumina catalysts have been prepared by a sol–gel method and coated in the microchannels of stainless steel platelets. These catalysts are very active for the water-gas shift reaction between 300 and 400°C.
Germani, G. +4 more
core +1 more source
Science and Engineering of Composite Materials, 2017 Alumina-based composites were fabricated by reaction sintering from two different sintering powder mixtures: alumina with silica (SiO2) and alumina with silicon carbide (SiC; to allow oxidation to form SiO2).
Limpichaipanit Apichart +2 more
doaj +1 more source
Recent progress in preparations and applications of meso-porous alumina
Materials Science for Energy Technologies, 2019 Meso-porous structure of alumina has a narrow pore size distribution, high specific surface area with good thermal stability compared to conventional alumina. Meso-porous alumina is characterized by surface area ∼800 m2/g and pore size from 2.0 to 10 nm.
S. Said, S. Mikhail, M. Riad
doaj +1 more source
Advanced Engineering Materials, EarlyView.Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova +2 more
wiley +1 more source
, 2010 The image shows the classic angular shape of corundum (alumina) grains formed in a liquid medium. The intergranular regions are dark and contain the aluminosilicate glass left from the cooled liquid.
DoITPoMS, University of Cambridge +1 more
core
Alumina-embedded Au nanowires for SERS sensing [PDF]
, 2011 We propose a novel substrate for SERS bio-sensing composed of an hexagonal array of gold nanorods embedded in an anodically-oxidized alumina substrate, reaching a surface field enhancement up to 220 ...
Richard Buividas (18943996) +4 more
core +1 more source
Journal of Materials Research and Technology, 2020 Micro- and meso-porous structures of alumina have attracted attention for their potential use in different applications. In this research, a novel and facile route was introduced for dual growth of alumina nanoparticles and carbon nanotubes together to ...
Osama Saber +4 more
doaj +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 +8 more
wiley +1 more source
, 2010 The fused alumina ceramic grain and natural graphite flakes (seen edge on in the micrograph) are held together by a polymer-derived carbon bond and protected from oxidation by a metal (bright Si) which betters oxygen in use to form e.g. SiO2.
DoITPoMS, University of Cambridge +1 more
core
Mineral phase transition of desilicated high alumina fly ash with alumina extraction in mixed alkali solution [PDF]
, 2016 High alumina fly ash (HAFA), a main industrial solid waste produced in increasing amounts in western China, is a type of alumina-rich resource that can replace bauxite in the preparation of alumina.
Wang, Chenye +3 more
core +1 more source