Download or read book PROPRIETES PHYSIQUES ET STRUCTURALES DE L ALLIAGE PALLADIUM CHROME DEPOSE PAR PULVERISATION CATHODIQUE written by Laetitia Leca and published by . This book was released on 1995 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE BUT DE CETTE ETUDE EST L'OBTENTION D'UN ELEMENT RESISTIF EN COUCHES MINCES POUR UNE JAUGE DE DEFORMATION UTILISABLE A HAUTE TEMPERATURE (CINQ CENT - NEUF CENT DEGRE CELCIUS). IL S'EST AVERE QUE LES PROPRIETES ELECTRIQUES A HAUTE TEMPERATURE DE L'ALLIAGE MASSIF PALLADIUM-CHROME A TREIZE POURCENT EN MASSE DE CHROME, ETAIENT SATISFAISANTES POUR REALISER UN TEL CAPTEUR. LES CARACTERISTIQUES ELECTRIQUES DE COUCHES MINCES DE PALLADIUM-CHROME, OBTENUES PAR PULVERISATION CATHODIQUE, ONT ETE DETERMINEES. IL A ETE MONTRE QUE CES CARACTERISTIQUES, A HAUTE TEMPERATURE, DEPENDENT DE L'ETAT D'OXYDATION DE L'ALLIAGE. UNE ETUDE STRUCTURALE D'UN GRAND NOMBRE D'ECHANTILLONS A ETABLI QUE LES PROPRIETES ELECTRIQUES DE L'ALLIAGE A HAUTE TEMPERATURE SONT REPRODUCTIBLES SI SA COMPOSITION CHIMIQUE RESTE STABLE. CETTE CONDITION N'EST REALISEE QUE SI L'ALLIAGE EST RECOUVERT D'UN DEPOT D'OXYDE. LA NATURE DE CE DEPOT JOUE UN ROLE IMPORTANT SUR LES PROPRIETES. DES PERFORMANCES SATISFAISANTES ONT ETE OBTENUES POUR UNE COUCHE MINCE DE PALLADIUM-CHROME, D'ENVIRON UN MICRON D'EPAISSEUR, RECOUVERTE D'UN MELANGE D'ALUMINE A SIX POURCENT EN MASSE DE ZIRCONE

Download or read book Flexoelectricity in Liquid Crystals written by Agnes Buka and published by World Scientific. This book was released on 2013 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.

Download or read book Nonlinear Optical Materials written by Jerome V. Moloney and published by Springer Science & Business Media. This book was released on 1998-08-13 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical methods play a significant role in the rapidly growing field of nonlinear optical materials. This volume discusses a number of successful or promising contributions. The overall theme of this volume is twofold: (1) the challenges faced in computing and optimizing nonlinear optical material properties; and (2) the exploitation of these properties in important areas of application. These include the design of optical amplifiers and lasers, as well as novel optical switches. Research topics in this volume include how to exploit the magnetooptic effect, how to work with the nonlinear optical response of materials, how to predict laser-induced breakdown in efficient optical devices, and how to handle electron cloud distortion in femtosecond processes.

Download or read book Water Treatment Handbook written by and published by . This book was released on 2007 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt: