Materials Literature
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Les matrices vitreuses aluminosilicatées de lanthanides {SiO2 –Al2O3 – (CaO) – Y2O3 – La2O3} constituent, une matrice potentielle d’intérêt nucléaire, dans le cadre du stockage des déchets des actinides. Alors que de nombreuses études sont encore menées pour établir leurs propriétés macroscopiques (durabilité, mécanis…
Ce document synthétise mes travaux de recherches sur la période 2002-2009. Les axes majeurs de mon activité portent sur le couplage de molécules avec des particules métalliques, supportant des modes plasmons (SPP) : - Microscopie et spectroscopie optiques en champ proche, - Relaxation moléculaire par couplage aux plas…
L'étape clé pour intégrer des nanotubes de carbone à une échelle industrielle demeure un meilleur contrôle de leur croissance et notamment le contrôle sélectif de leurs chiralités en lien avec leurs propriétés électroniques. Ce travail a pour but de s'intéresser à la synthèse in-situ et à la caractérisation de nanotub…
Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.
This book is concerned with a speci c aspect of the structure of natural and technological materials-the crystallographic orientation of its component units. The crystallographic orientation, or in this context simply orientation, refers to how the atomic planes in a volume of crystal are positioned relative to a xed…
Euler angles: a description of orientation involving sequential rotations of the crystal coordinate system through three angles with respect to the specimen coordinate system Euler space: three-dimensional (usually Cartesian) space wherein Euler angles are represented Friedel’s law: radiation is diffracted in the same…
Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.
The 2009 Best Paper Award, sponsored by Taylor and Francis and selected by the Editorial Board from papers published in 2008 was presented to: J. Lynch, Harrow Business School, University of Westmi...
This chapter contains sections titled: Review Questions Answers
A water control system for an hydraulic fill tailings storage is intended to fulfil the following functions: Because of the differing elevations of a tailings storage and the terrain in which it is constructed, a number of different catchments will be created both on and surrounding the storage. Some of these catchmen…
Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.
The fermion-doubling problem can be an obstacle to getting half-a-qubit in two-dimensional fermionic tight-binding models in the form of Majorana zero modes bound to the core of superconducting vortices. We argue that the number of such Majorana zero modes is determined by a Z_2 x Z_2 topological charge for a family o…
International audience
Part I
Materiais mesoporosos ordenados tem sido objeto de um numero crescente de estudos em aplicacoes distintas. A silica mesoporosa com estrutura hexagonal, SBA-15, apresenta elevada area superficial (690-1040m2.g-1) e tamanho de poros usualmente em torno de 4,6 a 30nm, sendo assim, um material apropriado para incorporar e…
International audience
The atomic and magnetic structures of (Cu$X$)LaNb$_2$O$_7$ ($X$=Cl and Br) are investigated using the density-functional calculations. Among several dozens of examined structures, an orthorhombic distorted $2\times 2$ structure, in which the displacement pattern of $X$ halogens resembles the model conjectured previous…
The scanning electron microscope (SEM) is a powerful instrument for acquiring microtexture data and characterizing the local crystallography of materials (Wilkinson and Hirsch, 1997). EBSD is the technique that has become almost universally used to obtain such data, so most of this chapter is devoted to a description…
In this chapter we introduce methods for texture determination that do not t into the earlier sections on x-ray or neutron macrotexture or electron microscope-based microtexture techniques. Although x-ray diffraction is usually associated with macrotexture (Section 4.3), such methods can in principle also be used for…
Bone defects caused by trauma, tumor resection or disease present a significant clinical problem. Failures in 'high risk' fractures and large bone defects have been reported to be as high as 30-50%. The drawbacks associated with current bone grafting procedures have stimulated the search for improved techniques for bo…