Results 51 to 60 of about 560,963 (375)

IMPROVEMENT OF WORKABILITY OF PORCELAIN UNDER EFFECT OF ALUMINA

open access: yesDiyala Journal of Engineering Sciences, 2012
Adding of alumina to porcelain improve the mechanical properties of the green and fired body.         This improvement depend on the properties of the added alumina, such as surface area, morphology and the percentage of the alumina.
Jaleel I.k.Al.Robayie
doaj   +1 more source

Improved masers for X-band and Ku band [PDF]

open access: yes, 1973
Slow-wave structure of traveling-wave maser utilizes comb system which is comprised of ruby on one side and alumina on other; alumina also supports isolator material. Radiation at pump frequency is coupled to ruby through shaped alumina strips.
Clauss, R. C., Quinn, R. B.
core   +1 more source

Methodology of mechanical characterization of coated spherical materials [PDF]

open access: yes, 2008
The aim of this work was to develop a methodology for the mechanical characterization of catalyst beads with a core-shell structure and more especially for coated spherical granules.
Celse, Benoit   +3 more
core   +1 more source

MAGNETO-CONVECTION OF ALUMINA - WATER NANOFLUID WITHIN THIN HORIZONTAL LAYERS USING THE REVISED GENERALIZED BUONGIORNO'S MODEL

open access: yesFrontiers in Heat and Mass Transfer, 2018
The significance of an externally applied magnetic field and an imposed negative temperature gradient on the onset of natural convection in a thin horizontal layer of alumina-water nanofluid for various sizes of spherical alumina nanoparticles (e.g ...
Abderrahim Wakif   +6 more
semanticscholar   +1 more source

Challenges during Flash Lamp Annealing of Aerosol‐Deposited Barium Titanate Films

open access: yesAdvanced Engineering Materials, EarlyView.
Aerosol deposition is used to rapidly deposit barium titanate films with thicknesses ranging from 2 to 16 μm at room temperature, eliminating the need for further densification. However, to recover the electromechanical properties, annealing is required, which limits the usage of temperature‐sensitive substrates.
Michel Kuhfuß   +7 more
wiley   +1 more source

Preparation of Aluminum Matrix Composite Reinforced with Alumina Particles by In- Situe Method [PDF]

open access: yesEngineering and Technology Journal, 2013
In this work an Aluminum matrix composite reinforced with alumina prepared by insitu (liquid-gas) method were investigated. Gas was represented by an oxygen with flow rate 50, 100, and 150 Sml/min (Standard mile Liter/minute) at different temperature ...
Yasir Muhi Abdualsahib   +2 more
doaj   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

Wave propagation through alumina-porous alumina laminates

open access: yes, 2014
A Brazilian disk geometry of an alumina layered composite with alternating dense and porous layers was dynamically loaded using a Split-Hopkinson Pressure Bar (SHPB)apparatus under compression.
Kriven, Waltraud M.   +5 more
core   +1 more source

Mechanically Deposited Wear‐Resistant Amorphous Zr55Cu30Al10Ni5 Coatings

open access: yesAdvanced Engineering Materials, EarlyView.
Mechanically deposited from glassy ribbons, the Zr55Cu30Al10Ni5 amorphous coating formed a hard, continuous layer on AISI 1010 steel, tripling substrate hardness, lowering friction, and reducing wear. Despite its rough surface, it showed friction and wear behavior comparable to the crystalline alloy, highlighting its strong potential as a durable ...
Tales Ferreira   +8 more
wiley   +1 more source

Alumina Powder Properties Obtained by Neutralization Process of Sodium Aluminate

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2009
Today, the most production of alumina is used for aluminum production [1, 2] (metallurgy alumina), minor production of alumina is used for special purpose, as fire-resistant materials, electro porcelain and etc., and because this alumina are called ...
Mitar PERUŠIC   +3 more
doaj  

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