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Influence of Load, Surface Finish and Lubrication on Friction Coefficient of AISI 304 Stainless Steel
(Springer, 2020-05)
The present work aims to evaluate the friction and wear behavior of a metastable stainless steel AISI 304L against steel AISI 52100 ball. Friction tests using the “ball-on-disc” technique at constant velocity (0.03 m/s) ...
Ethylene adsorption onto thermally treated AgA-Zeolite
(Elsevier Science, 2021-03-15)
Ag-Zeolite-based adsorbents were prepared in order to investigate the nature of the Ag species present in the zeolite structure and its correlation with their adsorption capacity and affinity towards ethylene. Na+ in NaA ...
Effects of neodymium doping on oxygen reduction activity in Pr2−xNdxNiO4+δ cathodes
(Elsevier Science, 2020-04)
Single phase Pr2−xNdxNiO4+δ (x = 0, 0.3, 1, 1.7 and 2) (PNNO) compounds were synthetized by a sol-gel route. The thermal behavior of these compounds has been studied by Differential Thermal Analysis (DTA) and High Temperature ...
Sorbent materials characterization based on mechanical or thermal pretreated montmorillonite modified by surfactant loading for improved chromium retention
(Springer, 2020-01)
t To improve hexavalent chromium (Cr(VI)) retention of montmorillonite (Mt) at pH 3, Mt sample was subjected to different treatments: thermal ones at 600 °C or 950 °C, 2 h, or mechanical grinding for 300 s. Then, the ...
Bone Regeneration with Wharton's Jelly-Bioceramic-Bioglass Composite
(Elsevier, 2015-12)
The aim of this development is to optimize a bone substitute (BS) for use in tissue engineering. This is achieved through the combination of three phases in a biocomposite (BCO), in which each is reabsorbed in the site of ...
Stability of the Fe23Zr6 phase in Zr alloys
(Asociación Argentina de Materiales, 2021)
Alloyed with iron (Fe), niobium (Nb) and tin (Sn), zirconium (Zr) is the main element in the Zirlo-type alloys, vastly used as structural elements and as containers of burnable elements in nuclear reactors. Although Zr is ...
Effect of EDTA in preparation of Ni catalysts toward a carbon-resistant ethanol reforming
(Elsevier Science, 2020-05)
Ni supported catalysts were prepared by an EDTA complexing method with different EDTA/Ni molar ratios: 0, 0.5, 1 and 2. The catalysts were characterised by X-ray diffraction, adsorption-desorption isotherms of N2, infrared ...
High temperature orthorhombic/tetragonal transition and oxygen content of Pr2-xNdxNiO4+δ (x= 0, 0.3, 1, 1.7 and 2) solid solutions
(Academic Press Inc Elsevier Science, 2019-08)
Single-phase Ruddlesden popper of Pr2-xNdxNiO4þδ with x ¼ 0, 0.3, 1, 1.7 and 2, were successfully synthesized by a sol-gel route. The thermal behavior of the prepared samples has been studied at the temperature range 25–800 ...
Intermolecular interactions in crystalline 1-(adamantane-1-carbonyl)-3-substituted thioureas with Hirshfeld surface analysis
(Royal Society of Chemistry, 2015-08)
The conformationally congested species 1-(adamantane-1-carbonyl)-3-(2,4,6-trimethylphenyl)thiourea has been prepared and fully characterized by elemental analyses, FTIR, 1H NMR, 13C NMR and mass spectrometry. Its crystal ...
Electrophoretic Codeposition of La0.6Sr0.4Co 0.8Fe0.2O3-δ and carbon nanotubes for developing composite cathodes for intermediate temperature solid oxide fuel cells
(Wiley Blackwell Publishing, Inc, 2010-01)
Carbon nanotubes (CNTs)/La0.6Sr0.4Co 0.8Fe0.2O3-δ (LSCF) composite films have been fabricated by electrophoretic codeposition on Ce0.9Gd 0.1O1.95 (CGO) substrates. CNTs are used as a sacrificial phase to produce ordered ...