63 citations · 237 across the 18 of their papers we have counts for
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Room temperature cathodoluminescence quenching of Er3+ in AlNOEr
Valerie Brien, P. R. Edwards, Pascal Boulet +1
This paper reports a cathodoluminescence (CL) spectroscopic study of nanogranular AlNOErx samples with erbiumcontent, x, in the range 0.5--3.6 at%. A wide range of erbium concentra…
Low cycle fatigue of a nickel based superalloy at high temperature: deformation microstructures
Valerie Brien, B. Décamps
The microstructural characteristics of a single crystalline nickel based superalloy (AM1) tested under high temperature fatigue at 950C are reported. For repeated fatigue (…
Low-cycle fatigue of a nickel-based superalloy at high temperature: Simplified micromechanical modelling
Valerie Brien, L. Kubin, B. Décamps
This work is focused on the micromechanical modelling of the low cycle fatigue of the nickel based superalloy AM1 at high temperature. The nature of the activated slip syste…
Structural, chemical and optical characterizations of nanocrystallized AlN:Er thin films prepared by r.f. magnetron sputtering
Valerie Brien, P. Miska, H. Rinnert +2
Nanocrystalline n-AlN:Er thin films were deposited on (001) Silicon substrates by r. f. magnetron sputtering at room temperature to study the correlation between 1.54 m IR photo…
Scratch-induced surface microstructures on the deformed surface of Al-Cu-Fe icosahedral quasicrystals
J. S Wu, Valerie Brien, P. Brunet +2
Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) investigations of sintered Al-Cu-Fe icosahedral quasicrystal (IQC) have been carried out to understand…
Transversal growth microstructures of quasicrystalline Ti-Zr-Ni films
Valerie Brien, A. Dauscher, P. Weisbecker +2
Pulsed laser deposition from a Nd:YAG laser was employed in production of hundreds of nanometer thick quasicrystalline Ti-Zr-Ni films on glass substrate. The influence of depositio…
Optical characterization of nanocrystallized AlN:Er films prepared by magnetron sputtering
Valerie Brien, Manuel Dossot, Hervé Rinnert +3
In the prospect of understanding the photoluminescence mechanisms of AlN films doped with erbium and targeting photonic applications we have synthesized non doped and Er-doped AlN…
Structural evolution of the elastic properties in nano-structured AlN film
Rafael J. Jimenez-Rioboo, Valerie Brien, Philippe Pigeat
A study of the transverse acoustic phonons on nano-structured AlN films has been carried out by using high-resolution micro-Brillouin spectroscopy. Dense films have been deposited…
Properties of amorphous CoZr(RE) (RE=Gd, Sm, Dy) films with various uniaxial anisotropies, prepared by a new process
D. H Shin, H Niedoba, Y. Henry +5
If a DC magnetic field is applied parallel to the plane of amorphous CoZr(RE) thin films during sputter depositing, a uniaxial anisotropy is formed the direction of which depends u…
Effect of tensile stresses on bainitic isothermal transformation
T. Su, M. Veaux, E. Aeby-Gautier +3
The effects of tensile stresses on isothermal bainitic transformation were studied in the case of a 35MV7 steel. The modification of transformation kinetics and the presence of tra…
Growth of a textured quasicrystalline phase in Ti-Ni-Zr films prepared by pulsed laser deposition
Valerie Brien, A. Dauscher, P. Weisbecker +1
The preparation in thin film form of the known icosahedral phase in Ti-Ni-Zr bulk alloys has been investigated as a function of substrate temperature. Films were deposited by Pulse…
Ab initio investigation of the AlN:Er system
Th. Pavloudis, Valérie Brien, Joseph Kioseoglou
In the present study an ab initio investigation on the AlN:Er system for concentrations of Er ranging from 0.78 to 12.5 % is presented. The crystallographic localisation of the rar…
Erbium location into AlN films as probed by spatial resolution experimental techniques
Valerie Brien, Pascal Boulet
This paper presents a thorough experimental investigation of erbium-doped aluminium nitride thin films prepared by R.F. magnetronsputtering, coupling Scanning Transmission Electron…
Influence of the magnetron power on the Er-related photoluminescence of AlN:Er films prepared by magnetron sputtering
Syed Sajjad Hussain, Valerie Brien, Hervé Rinnert +1
The effect of magnetron power on the room temperature 1.54 m infra-red photoluminescence intensity of erbium doped AlN films grown by r. f. magnetron sputtering, has been studie…
Microstructures Diagram Of Magnetron Sputtered Aln Deposits : Amorphous And Nanostructured Films
Valerie Brien, P. Pigeat
In order to get homogeneous nanostructured Aluminum Nitride deposits, thin films were grown at room temperature on [001] Si substrates by radio frequency magnetron reactive sputter…
Extended X-ray absorption fine structure study of the Er bonding in AlNO:Er x films with x 3.6%
M. Katsikini, V. Kachkanov, Pascal Boulet +3
The structural properties of Er-doped AlNO epilayers grown by radio frequency magnetron sputtering were studied by Extended X-ray Absorption Fine Structure (EXAFS) spectra recorded…
Photoluminescence properties of Er-doped AlN films prepared by magnetron sputtering
H. Rinnert, S. S. Hussain, Valerie Brien +1
Er-doped aluminum nitride films, containing different Er concentrations, were obtained at room temperature by reactive radio frequency magnetron sputtering. The prepared samples sh…