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2012 (v1)PublicationUploaded on: April 14, 2023
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2012 (v1)Publication
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Uploaded on: April 14, 2023 -
2012 (v1)Publication
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Uploaded on: April 14, 2023 -
2011 (v1)Publication
The standard enthalpies of formation at 300 K of the RPdAl phases (R = Nd, Sm, Gd, Tb, Dy, Ho and Er) have been obtained by using a high-temperature direct reaction drop calorimeter. The reliability of the calorimetric results has been determined and supported by using different analytical techniques: light optical microscopy, scanning electron...
Uploaded on: March 31, 2023 -
2014 (v1)Publication
Phase relations in the Gd-Ni-Al ternary system have been established for two isothermal sections (500 and 800°C) based on X-ray powder diffraction analysis (XRD), Light Optical Microscopy (LOM), Scanning Electron Microscopy (SEM) coupled with Energy dispersive Microprobe Analysis (EPMA) on about 31 annealed alloys in the 50 - 100 at.% Al...
Uploaded on: April 14, 2023 -
2014 (v1)Publication
The paper focuses on the thermochemical behaviour of the binary Sm-Mg alloys. The enthalpies of formation of the Sm-Mg intermetallic compounds have been determined at 300 K by high temperature direct synthesis calorimetry. The following results in kJ/mole of atoms are reported: -18.5±2 (SmMg), -16.0±2 (SmMg2), -12.0±2 (SmMg3), -8.5±2 (SmMg5)...
Uploaded on: March 27, 2023 -
2008 (v1)Publication
For a long time now, our group has been doing research on thermodynamic properties of selected alloy systems. Our interest has mainly centered on the determination of the enthalpies of formation of solid alloys by using calorimetric methods. This fundamental study is the basis for the modern material science which has the objective to tailor a...
Uploaded on: March 31, 2023 -
2008 (v1)Publication
Cubic cP4-AuCu3 trialuminides have long been of interest because of their possible use as low density, high-temperature structural materials. The inherent brittleness of trialuminides, however, has limited their use in such applications so, many of the efforts to increase the ductility of these alloys have focused on identifying alloying...
Uploaded on: March 31, 2023 -
2013 (v1)Publication
A calorimetric study of the RNi2 Laves phases (R = Pr, Nd, Sm, Gd, Tb, Dy, Ho and Er) has been carried out to determine the heat of formation (DfH) at 300 K using a high temperature direct drop calorimeter. The reliability of the calorimetric results has been determined and supported by using different analytical techniques: light optical...
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2005 (v1)Publication
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Uploaded on: March 31, 2023 -
2008 (v1)Publication
The isothermal section at 500 °C of the Sm–Ni–Al ternary system in the 40–100 at.% Al region has been investigated by means of optical and electronic microscopy, quantitative microprobe microanalysis and X-ray powder diffraction. At this temperature six intermetallic phases have been determined. The existence of the Sm4Ni6Al23, SmNiAl4, SmNiAl2...
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2003 (v1)Publication
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2009 (v1)Publication
A calorimetric study of alloys along the section TiZn3-TiAl3 is carried out to determine their heat of formation (Δf H{ring operator}) at 300 K using a high temperature direct drop calorimeter. The target compositions of the alloys lie in the range of 10-65 at.% Al. The structure and composition of the reacted samples are characterized by X-ray...
Uploaded on: April 14, 2023 -
2014 (v1)Publication
The peculiarities in the phase formation in the Al-rich region of the Ce-Ni-Al and Sm-Ni-Al ternary systems have been investigated by means of optical and scanning electron microscopy, electron probe microanalysis and x-ray powder diffraction (XRD) study. The following ternary phases have been identified: Ce4Ni6Al23 (τ1, mS66-Y4Ni6Al23),...
Uploaded on: March 27, 2023 -
2015 (v1)Publication
More than 35 samples of the Cu-Zn-Sn-S system were prepared along the ZnS-Cu2SnS3 section, in order to study the bulk properties of the Cu2ZnSnS4 semiconductor. During the investigation of these samples, a new quaternary phase was detected by Scanning Electron Microscopy coupled with Energy Dispersive Spectroscopy (SEM/EDS) analyses. The...
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2007 (v1)Publication
The electrocatalytic activity of crystalline Ni65Co29Y6 alloy with respect to the hydrogen evolution reaction (HER) was studied in relation to its microstructure examined by optical microscopy, scanning electron microscopy coupled with electron probe microanalysis measurements. Kinetic parameters of the HER were evaluated on the basis of...
Uploaded on: May 11, 2023 -
2012 (v1)Publication
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Uploaded on: April 14, 2023 -
2008 (v1)Publication
The thermodynamic properties play a crucial role in the development of new solder materials. In this work a calorimetric investigation of the ternary Cu-Sn-Bi system was carried out by using a Calvet-type calorimeter in order to obtain the molar limiting partial enthalpy of Cu in liquid Sn-Bi alloys with different compositions. The molar...
Uploaded on: March 31, 2023 -
2008 (v1)Publication
The corrosion performance of two crystalline Co–Ni–Pr and Co–Ni–Er alloys (Pr5.5Co58Ni36.5 and Er6.5Co57.5Ni36) in an alkaline solution, like the one used in water electrolysis, was studied and compared with that of a commercially employed binary Co–Ni alloy (Co57Ni43) in order to assess the influence of rare earth elements on its corrosion...
Uploaded on: April 14, 2023 -
2017 (v1)Publication
The corrosion behaviour of binary Al–Sc alloys (Al-0.3Sc and Al-1Sc, wt%) is investigated in de-aerated 0.6 M NaCl solution, performing potentiodynamic polarisation, potentiostatic transients and electrochemical impedance spectroscopy (EIS) measurements complemented with scanning electron microscopy (SEM). In the presence of chloride ions, both...
Uploaded on: March 27, 2023 -
2011 (v1)Publication
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Uploaded on: April 14, 2023 -
2010 (v1)Publication
The Sm-rich side of the Sm-Co system has been experimentally reinvestigated using the differential scanning calorimetry (DSC) method with slow rates of 1 °C/min and 0.5 °C/min as well as microscope and X-ray diffraction (XRD) analyses. Combining the experimental results from DSC, XRD and EPMA (Electron Probe MicroAnalysis) analyses, five...
Uploaded on: April 14, 2023