Concept

Solution solide

Publications associées (100)

Ferroelectric Lead Metaniobate and its Solid Solutions: Solid State Synthesis and Characterization

Orthorhombic Lead metaniobate (PbNb2O6) exhibits ferroelectric properties and has a Curie temperature, TC of 570 degrees C. This work reports on investigations made on ferroelectric Lead metaniobate, (PN) and its solid solutions with bismuth and titanium P ...

Ieee2012

Fe-containing Hydrates and their Fate during Cement Hydration

Belay Zeleke Dilnesa

Thermodynamic modeling is a versatile tool for predicting the chemical composition cement during the hydration of cement. The quality of the thermodynamic modeling depends directly on the quality and completeness of thermodynamic database used. One of the ...

EPFL2012

Grain Boundary Relaxation in 18-carat Yellow Gold

Daniele Mari, Robert Schaller, Iva Tkalcec Vâju

Au60Ag30Cu10 (in at%) gold alloy exhibits a mechanical loss spectrum composed of a Zener peak due to Cu atoms in the solid solution and of a second relaxation peak at higher temperature or lower frequency. It is shown that this second peak is related to th ...

Trans Tech Publications Ltd, Laublsrutistr 24, Ch-8717 Stafa-Zurich, Switzerland2012

Uptake of Fluoride from Aqueous Solution on Nano-Sized Hydroxyapatite: Examination of a Fluoridated Surface Layer

Janet Gordon Hering

Hydroxyapatite (Ca-10(PO4)(6)(OH)(2), HAP), both as a synthetic material and as a constituent of bone char, can serve as an effective and relatively inexpensive filter material for fluoride (F-) removal from drinking water in low-income countries. Fluoride ...

2012

Modelling migration and dissolution of mineral particles in saturated porous media

David Andrew Barry, Christof Holliger, Alessandro Brovelli, Elsa Marina Lacroix

Understanding and predicting the fate in soils and other porous media of solid mineral particles with grain diameters in the micrometer range is important in a number of environmental and civil engineering applications, including subsurface hydrology, wast ...

2012

Elastic, dielectric, and piezoelectric anomalies and Raman spectroscopy of 0.5Ba(Ti0.8Zr0.2)O3-0.5(Ba0.7Ca0.3)TiO3

Dragan Damjanovic, Alberto Biancoli, Leili Batooli, Amirhossein Vahabzadeh

The solid solution 0.5Ba(Ti0.8Zr0.2)O-3-0.5(Ba0.7Ca0.3)TiO3 (BCZT) is a promising lead-free piezoelectric material with exceptionally high piezoelectric coefficients. The strong response is related to structural instabilities close to ambient temperature. ...

American Institute of Physics2012

Evolution of microstructure and twin density during thermomechanical processing in a γ-γ' nickel-based superalloy

Roland Logé

Microstructure evolution has been studied in the nickel-based superalloy PER®72 subjected to hot torsion, to annealing below the primary γ' solvus temperature and to annealing at a supersolvus temperature, with a special emphasis on grain size and twin con ...

2012

Effects of solidification kinetics on microstructure formation in binary Sn-Cu solder alloys

Michel Rappaz, Tina Ventura

Three binary Sn-Cu solder alloys of near-eutectic composition have been directionally solidified at different growth rates. The competition between primary tetragonal Sn cells/dendrites and eutectic is interpreted with the coupled zone concept. It is also ...

Elsevier2011

Impact of chloride on the mineralogy of hydrated Portland cement systems

Barbara Lothenbach

Chloride ion is in part bound into ordinary Portland cement paste and modifies its mineralogy. To understand this a literature review of its impacts has been made and new experimental data were obtained. Phase pure preparations of Friedel's salt, Ca4Al2(Cl ...

2010

Thermodynamic assessment of the Cu-Ge binary system

Jian Wang, Christian Leinenbach, Alain Jacot, Shan Jin

The Cu-Ge binary system was assessed thermodynamically using the CALPHAD method through Thermocalc (R) software package based on the evaluation of all available experimental data from the published literature. The solution phases, including liquid, fcc, hc ...

Elsevier2010

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