Zobrazeno 1 - 10
of 227
pro vyhledávání: '"Robert A. Varin"'
Publikováno v:
Materials, Vol 8, Iss 6, Pp 3479-3490 (2015)
LiAlH4 and CaCl2 were employed for mechano-chemical activation synthesis (MCAS) of Ca(AlH4)2 and LiCl hydride composite. After short ball milling time, their X-ray diffraction (XRD) peaks are clearly observed. After ball milling for a longer duration
Externí odkaz:
https://doaj.org/article/5ae4867ad2ba4c7e8787c593e36e18ac
Publikováno v:
AIMS Energy, Vol 3, Iss 1, Pp 121-143 (2015)
Complex hydride systems for hydrogen (H2) generation for supplying fuel cells are being reviewed. In the first group, the hydride systems that are capable of generating H2 through a mechanical dehydrogenation phenomenon at the ambient temperature are
Externí odkaz:
https://doaj.org/article/1a063173f64a4080a2f721bca0206b0b
Autor:
Tomasz Durejko, Magdalena Łazińska, Julita Dworecka-Wójcik, Stanisław Lipiński, Robert A. Varin, Tomasz Czujko
Publikováno v:
Materials, Vol 12, Iss 9, p 1366 (2019)
A Tribaloy family of alloys (CoMoCrSi) are characterized by a substantial resistance to wear and corrosion within a wide range of temperatures. These properties are a direct result of their microstructure including the presence of Laves phase in vary
Externí odkaz:
https://doaj.org/article/cea596878ff44778bbab137888cdee21
Autor:
Leszek Zbroniec, Robert A. Varin
Publikováno v:
Crystals, Vol 2, Iss 2, Pp 159-175 (2012)
Hydrogen storage properties of the (nLiAlH4 + LiNH2) hydride composite where n = 1, 3, 11.5 and 30, synthesized by high energy ball milling have been investigated. The composite with the molar ratio n = 1 releases large quantities of H2 (up to ~5 wt.
Externí odkaz:
https://doaj.org/article/21039c40eeca45569b5bd0d4cdbfea15
Publikováno v:
Energies, Vol 4, Iss 1, Pp 1-25 (2010)
The recent advances on the effects of microstructural refinement and various nano-catalytic additives on the hydrogen storage properties of metal and complex hydrides obtained in the last few years in the allied laboratories at the University of Wate
Externí odkaz:
https://doaj.org/article/77e1c00dd28946169b020021665eb031
Autor:
Robert A. Varin, Deepak K. Mattar, Marek Polanski, Amirreza Shirani Bidabadi, Leszek Stobinski
Publikováno v:
Energies, Vol 10, Iss 11, p 1741 (2017)
A non-stoichiometric, amorphous a-Mn(BH4)(2x) hydride, accompanied by a NaCl-type salt, was mechanochemically synthesized from the additive-free mixture of (2NaBH4 + MnCl2), as well as from the mixtures containing the additives of ultrafine filamenta
Externí odkaz:
https://doaj.org/article/a58965df82b344819ed142bf13ff889f
Directed precipitation of anhydrous magnesite for improved performance of mineral carbonation of CO2
Publikováno v:
Journal of Environmental Chemical Engineering. 5:3362-3372
This paper studies the indirect aqueous carbon sequestration via Mg(OH) 2 using directed precipitation technique. This technique produces anhydrous MgCO 3 (magnesite), the most desirable carbonated phase for sequestration. The formation of magnesite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5682e49658cf1c265a24c9ce0942f2ea
https://doi.org/10.1016/j.jece.2017.06.048
https://doi.org/10.1016/j.jece.2017.06.048
Autor:
Stanisław Jóźwiak, Przemysław Litwa, Łukasz Kurpaska, Robert A. Varin, Krzysztof Perkowski, Jacek Jagielski, Tomasz Czujko
Publikováno v:
Journal of Alloys and Compounds. 711:111-120
A composite rod, designed for the neutron absorption in nuclear research reactors or Nuclear Power Plants (NPPs), was synthesized by ball milling and subsequent Hot Isostatic Pressing (HIP-ing), similarly to the one reported in Ref. [3]. Its core con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::373421a89c1fb72e0c03645f1d8d1204
https://doi.org/10.1016/j.jallcom.2017.03.350
https://doi.org/10.1016/j.jallcom.2017.03.350
Publikováno v:
Journal of Energy Chemistry. 26:24-34
The mixture of (2NaBH 4 + MnCl 2 ) was ball milled in a magneto-mill. No gas release was detected. The XRD patterns of the ball milled mixture exhibit only the Bragg diffraction peaks of the NaCl-type salt which on the basis of the present X-ray diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::100bba7a551869b3e842dce2d2b5606d
https://doi.org/10.1016/j.jechem.2016.08.011
https://doi.org/10.1016/j.jechem.2016.08.011
Publikováno v:
Journal of Materials Science. 52:2902-2914
Tri-axial plane-strain forging was applied to the Fe–28Al–5Cr–0.8Zr–0.04B intermetallic alloy, in order to study its grain refinement and possible improvement in mechanical properties. The forging temperature range was from 20 to 600 °C. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4dc6f784cda29a9b4e7ef53021eb9ca
https://doi.org/10.1007/s10853-016-0584-2
https://doi.org/10.1007/s10853-016-0584-2