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Showing 1 to 20 of 59 for “"intermetallic compounds"”.
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Intermetallic compounds by reductive annealing
… of a new synthetic route to binary and ternary intermetallic compounds, which avoids the need for reaction at very high temperatures, multi-step reactions, reaction under vacuum and/or the synthesis of precursors. The route was adapted from a synthetic route reported for the synthesis of ternary …
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Chemical properties of copper-tin intermetallic compounds
Thesis: M.S., Massachusetts Institute of Technology, Department of Metallurgy, 1949
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Properties and applications of metastable precious metal intermetallic compounds
Precious metal alloys and compounds have myriad applications in the fast-expanding horizons of the commercial and industrial worlds. They are also fascinating topics for scientific research. These materials have a long history, with gold and silver amongst the very earliest metals used by humans. …
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Thermal Transport in Strongly Correlated Rare-Earth Intermetallic Compounds
In dieser Arbeit wurden mit Hilfe von Transportmessungen – vor allem mit thermischem Transport bei sehr tiefen Temperaturen – intermetallische Seltenerdverbindungen untersucht. Diese Materialien sind oft durch starke elektronische Korrelationen gekennzeichnet, die zu neuartigen Eigenschaften …
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A resonant ultrasound spectroscopy study of hydrogen-absorbing intermetallic compounds
… used to study four different hydrogen-absorbing intermetallic compounds. A fundamental study of the properties of hydrogen motion within a host metal lattice was undertaken, on two different Cl5 Laves-phase compounds. These results have been obtained by determining the ultrasonic attenuation as a …
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Structure and Mechanical Properties of Cement and Intermetallic Compounds via ab-initio Simulations
… be applicable for cement. Thus, this study used intermetallic compounds as a test case to develop new AIMD methods. In light of this objective, a direct method to calculate high temperature mechanical properties was devised for Mo₅Si₃ (T1 phase) and Mo₅B2Si₃ (T2 phase). It was found that thermal …
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The magnetic and electronic structures of several rare earth-transition metal intermetallic compounds
… (x = 0, 1, 1.5, and 2) compounds have been studied by x-ray and neutron diffraction, SQUID and Mössbauer spectroscopy (LaNi<sub>5-x</sub>Fe<sub>x</sub> only). All of the samples crystallized in the hexagonal CaCu<sub>5</sub>-type structure with space group P6/mmm. Both Fe …
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Polar intermetallic compounds of the silicon and arsenic family elements and their ternary hydrides and fluorides
… in the A5Pn3 systems are hydrogen-stabilized compounds. Reactions in absence of hydrogen lead to compounds with the Mn5Si3-type structure. The structure type [beta]- Yb5Sb3 (=Ca5Sb3F) was found to be characteristic of ternary systems and inaccurately associated with phases that form in the …
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Diffusion problems in lead-tin overlay bearings
… substrate results in the formation of copper-tin intermetallic compounds, consequently depleting tin in the overlay. This renders the bearing subject to corrosion in degraded oil. Attempts have been made to slow down this diffusion process by placing electro- deposited barriers between the bonding …
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ΚΑΤΑΣΚΕΥΗ ΣΥΣΤΗΜΑΤΟΣ ΑΝΑΔΙΑΛΥΤΙΚΗΣ ΠΟΤΕΝΣΙΟΜΕΤΡΙΑΣ ΕΛΕΓΧΟΜΕΝΟΥ ΑΠΟ ΜΙΚΡΟΥΠΟΛΟΓΙΣΤΗ-ΓΕΝΙΚΕΣ ΜΕΛΕΤΕΣ ΣΤΗ ΜΕΘΟΔΟ ΚΑΙ ΑΝΑΛΥΤΙΚΕΣ ΕΦΑΡΜΟΓΕΣ
… MADE. 5. THE PROBLEMS CAUSED BY THE FORMATION OF INTERMETALLIC COMPOUNDS HAVE BEEN STUDIED. 6. THE FORMATION OF INTERMETALLIC COMPOUNDS BETWEEN ZNAND CU WAS STUDIED AND THE SUCCESSIVE FORMATION OF CUZN, CUZN2 AND CUZN3 WAS CONFIRMED. 7. THE APPLICABILITY OF GALLIUM AS COPPER SCAVENGER IN THE …
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The Influence of Alloying Additions on Diffusion and Strengthening of Magnesium
… are determined by way of the Hall method. The intermetallic compounds and solid solutions formed during diffusion bonding of the combinatorial samples are subjected to nanoindentation tests, and the nominal and compositionally dependent mechanical properties are extracted by the Oliver-Pharr …
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Dissimilar Metal Friction Stir Welding of Aluminum to Magnesium Alloys
… (Mg) by friction stir welding resulted in the intermetallic formation inside the stir zone under all conditions of welding. The presence of brittle and low toughness intermetallic phases results in low strength and ductility of the weld joint. The strength of 6063 Al and AZ31B Mg (3.25 mm) butt …
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Field-induced magnetic phase transitions and correlated electronic states in the hexagonal RAgGe and RPtIn series
<p>Rare earth intermetallic compounds provide rich grounds for investigating the properties of both local moment and strongly correlated, hybridized moment systems. These areas have been intensively explored mostly on cubic and tetragonal intermetallic compounds, and very little work existed on …
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Solid-state joining of titanium alloy to stainless steel
… steels. Current joining methods produce intermetallic compounds (intermetallics) at the joint interface which are detrimental to joint strength. In this study, dissimilar joints between 436L stainless steel and a titanium alloy, Ti 1.2 ASN, were made by the solid-state welding methods of …
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Defect and deformation studies in transition metal trialuminide compounds
Defect studies have been performed on the intermetallic compounds $\rm Al\sb3Ti$, $\rm Al\sb3V$ and $\rm Al\sb{67}Ni\sb8Ti\sb{25}$ which were deformed at elevated temperatures. Test materials were prepared via the rapid solidification route. TEM characterizations indicated that the microstructure …
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Crystal growth and perfection of selected intermetallic and oxide compounds
… and structural perfection of grown crystals of intermetallic compounds and oxides and their physical properties. This technological chain includes detailed studies of unknown or insufficiently known phase diagrams, their correlation with growth conditions and optimisation of process parameters …
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