Results 61 to 70 of about 25,297 (201)

Исследование процесса окисления механоактивированных ультрадисперсных порошков железа [PDF]

open access: yes, 2015
The oxidation of mechanically activated ultrafine iron powders was studied using X-ray powder diffractionand thermogravimetric analyzes. The powders with average particles size of 100 nm were made by the electricexplosion of wire, and were subjected to ...
Власов, Виталий Анатольевич   +2 more
core  

Synthesis of silicon doped SrMO3 (M=Mn, Co): stabilization of the cubic perovskite and enhancement in conductivity [PDF]

open access: yes, 2011
In this paper we report the successful incorporation of silicon into SrMO3 (M=Co, Mn) leading to a structural change from a hexagonal to a cubic perovskite.
Hancock, C, Slater, Peter.R.
core   +1 more source

Towards cubic modification of Li7La3ZR2O12 compound by mechanical milling and annealing of powders [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
The aim of these studies was to obtain single phase cubic modification of Li7La3Zr2O12 by mechanical milling and annealing of La(OH)3, Li2CO3 and ZrO2 powder mixture. Fritsch P5 planetary ball mill, Rigaku MiniFlex II X-ray diffractometer, Setaram TG-DSC
D. Oleszak   +5 more
doaj   +1 more source

Calcium manganite as oxygen electrode materials for reversible solid oxide fuel cell [PDF]

open access: yes, 2015
The authors thank EPSRC for funding under the contract of H2FC hub EPSRC: EP/J016454/1 and Platform EPSRC: EP/K006800/1 and JTSI thanks Wolfson Merit of Royal Society: WRMA 2012/R2For an efficient high-temperature reversible solid oxide fuel cell (RSOFC),
Irvine, John T.S., Ni, Chengsheng
core   +1 more source

Investigation of oxidation process of mechanically activated ultrafine iron powders [PDF]

open access: yes, 2008
The oxidation of mechanically activated ultrafine iron powders was studied using X-ray powder diffraction and thermogravimetric analyzes. The powders with average particles size of 100 nm were made by the electric explosion of wire, and were subjected to
E N Lysenko   +8 more
core   +1 more source

Effect of Precursor Blending Ratio and Rotation Speed of Mechanically Activated Fly Ash on Properties of Geopolymer Foam Concrete

open access: yesBuildings
This research used fly ash and slag to create geopolymer foam concrete. They were activated with an alkali, resulting in a chemical reaction that produced a gel that strengthened the concrete’s structural integrity.
Xuan Liu   +5 more
doaj   +1 more source

Effects of the speed ratio on the efficiency of planetary mills

open access: yesHeliyon, 2019
The ignition time (tig) of the mechanically induced self-sustaining reaction (MSR) process involving the formation of TiB2 from Ti/2B elemental mixtures was used to study the influence of the ratio (k = -ωv/ωd) between the rotational speed of the ...
C. Real, F.J. Gotor
doaj   +1 more source

Widespread abiotic methane in chromitites [PDF]

open access: yes, 2018
Recurring discoveries of abiotic methane in gas seeps and springs in ophiolites and peridotite massifs worldwide raised the question of where, in which rocks, methane was generated.
Etiope, G.   +8 more
core   +1 more source

Application of PFC3D to simulate a planetary ball mill [PDF]

open access: yes, 2015
Planetary ball mill is a versatile machine which has been used for grinding different types of materials for size reduction and lately for hemp decortication. PFC3D, software employing the discrete element method (DEM), was used to simulate the power and
Chen, Ying   +3 more
core   +1 more source

A study on physical properties of mortar mixed with fly-ash as functions of mill types and milling times [PDF]

open access: yes, 2016
Coal ash, a material generated from coal-fired power plants, can be classified as fly ash and bottom ash. The amount of domestic fly ash generation is almost 6.84 million tons per year, while the amount of bottom ash generation is 1.51 million tons.
���������
core   +1 more source

Home - About - Disclaimer - Privacy