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Contribution A Letude Du Comportement Des Materiaux Ceramiques En Milieu Siderurgique
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Book Synopsis Contribution à l'étude du comportement des matériaux céramiques en milieu sidérurgique by : Abdelkader Lai͏̈meche
Download or read book Contribution à l'étude du comportement des matériaux céramiques en milieu sidérurgique written by Abdelkader Lai͏̈meche and published by . This book was released on 1993 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'ETUDE DE LA MOUILLABILITE DES DIFFERENTES NUANCES D'ACIER SUR LES CERAMIQUES NITRURES ET EN PARTICULIER SUR LE NITRURE D'ALUMINIUM, A MIS EN EVIDENCE L'EXISTENCE D'INTERACTIONS CHIMIQUES COMPLEXES AUX INTERFACES LIQUIDE-VAPEUR ET SOLIDE-LIQUIDE. L'INTERACTION A L'INTERFACE ALN-ACIER LIQUIDE FAIT APPEL, D'UNE PART A UN MECANISME DE DECOMPOSITION D'ALN AVEC OXYDATION DE L'ALUMINIUM, ET D'AUTRE PART A L'ATTAQUE DE LA PHASE ALON QUASI INEVITABLEMENT PRESENTE AUX JOINTS DE GRAINS D'ALN. NOUS AVONS ALORS CHERCHE A ELIMINER ALON DES JOINTS DE GRAINS EN AJOUTANT AVANT LE FRITTAGE, A LA POUDRE DE DEPART, UNE FAIBLE QUANTITE DE NITRURE DE BORE QUI PERMET D'EVITER LA FORMATION DES PHASES ALUMINATES OXYDEES ET EN PARTICULIER DES OXYNITRURES D'ALUMINIUM AUX JOINTS DE GRAINS LORS DU FRITTAGE. LE TAUX DE BN DOIT ETRE ADAPTE A LA STRICTE EPURATION DES JOINTS DE GRAINS, ET NOS MEILLEURS RESULTATS ONT ETE OBTENUS POUR LES TENEURS DE 10% EN POIDS. L'ETUDE DE LA CORROSION DES CERAMIQUES TESTEES PAR LA METHODE DU DOIGT PLONGEANT VIENT CONFIRMER LES RESULTATS DE LA MOUILLABILITE PUISQUE, DANS LE CAS OU L'INTERACTION SOLIDE-LIQUIDE EST FAIBLE (CAS DE L'ALUMINE), LA RESISTANCE A LA CORROSION EST BONNE. C'EST AUSSI CE QUI EST CONSTATE LORSQUE LES PRODUITS DE LA REACTION ACIER-CERAMIQUE OU LA DECOMPOSITION DU SUBSTRAT (CAS DU SIALON ) ABOUTISSENT A LA FORMATION D'UNE COUCHE D'ALUMINE A L'INTERFACE SOLIDE-LIQUIDE, QUI CONFERE AU MATERIAU UNE MEILLEURE RESISTANCE A LA CORROSION. L'ALUMINE N'EST PAS LE SEUL COMPOSE DONT IL FAUT RECHERCHER LA FORMATION IN SITU POUR AMELIORER LA RESISTANCE A LA CORROSION. LES ACIERS RICHES EN TITANE, COMME DANS LE CAS DU SIALON , FORMENT A L'INTERFACE UNE NOUVELLE PHASE QUI RESISTE PARTICULIEREMENT BIEN ET PROTEGE ALN CONTRE LA CORROSION
Book Synopsis CONTRIBUTION A L'ETUDE DU COMPORTEMENT TRIBOLOGIQUE DES CERAMIQUES THERMOMECANIQUES by : ZOLTAN.. SZIGA
Download or read book CONTRIBUTION A L'ETUDE DU COMPORTEMENT TRIBOLOGIQUE DES CERAMIQUES THERMOMECANIQUES written by ZOLTAN.. SZIGA and published by . This book was released on 1995 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL EST CONSACRE A L'ETUDE EXPERIMENTALE DU COMPORTEMENT TRIBOLOGIQUE DE PLUSIEURS COUPLES CERAMIQUE/CERAMIQUE ET CERAMIQUE/METAL. LES MATERIAUX ETUDIES SONT: LE CUIVRE, LE NICKEL, LE TITANE, ET L'ALUMINIUM (POUR LES METAUX), L'ALUMINE, LE CARBURE DE SILICIUM ET LA ZIRCONE PARTIELLEMENT STABILISEE (POUR LES CERAMIQUES). LES ESSAIS DE FROTTEMENT ONT ETE REALISES A L'AIDE D'UN TRIBOMETRE TRAVAILLANT DANS UNE CONFIGURATION DU TYPE SPHERE/PLAN. NOUS AVONS EN PARTICULIER ANALYSE L'INFLUENCE DE L'HUMIDITE RELATIVE ET DE LA CHARGE APPLIQUEE SUR LE COMPORTEMENT TRIBOLOGIQUE DES DIFFERENTS COUPLES TESTES. LES MECANISMES D'USURE ONT ETE CARACTERISES PAR RUGOSIMETRIE TACTILE TRIDIMENSIONNELLE ET PAR MICROSCOPIE ELECTRONIQUE A BALAYAGE (MEB). LA SPECTROSCOPIE DE PHOTOELECTRONS (ESCA) ET LA SPECTROMETRIE DE RAYONS X A DISPERSION EN ENERGIE (EDS) ONT ETE MISES EN UVRE POUR ETUDIER LES REACTIONS TRIBOCHIMIQUES ET CARACTERISER LE TROISIEME CORPS. DANS LE CAS DES COUPLES CERAMIQUE/METAL, NOS RESULTATS MONTRENT QUE L'ADHESION A L'INTERFACE JOUE UN ROLE DETERMINANT DANS LA DETERIORATION DE LA SURFACE. AU COURS DU FROTTEMENT, DES JONCTIONS SE FORMENT ET SONT ROMPUES PAR CISAILLEMENT DANS LE METAL QUI EST TRANSFERE SUR LA CERAMIQUE. LA FORMATION DES LIAISONS INTERFACIALES DEPEND FORTEMENT DE L'APTITUDE DU METAL A L'ADHESION (REACTIVITE) ET EST INFLUENCEE PAR L'HUMIDITE. LE TAUX D'HUMIDITE RELATIVE INFLUENCE EGALEMENT, DE MANIERE DETERMINANTE, LE COMPORTEMENT TRIBOLOGIQUE DES COUPLES CERAMIQUE/CERAMIQUE TESTES. NOUS AVONS CONSTATE DANS TOUS LES CAS UNE NETTE DIMINUTION DU FROTTEMENT ET DE L'USURE LORSQUE L'HUMIDITE CROIT. DES OXYDES (OU HYDROXYDES) SE FORMENT A LA SURFACE DES CERAMIQUES ET JOUENT LE ROLE DE LUBRIFIANT. LES PROPRIETES TRIBOLOGIQUES DES CERAMIQUES DEPENDENT D'UNE PART DE LA FORMATION ET DE L'EPAISSEUR DE CES FILMS SUPERFICIELS, D'AUTRE PART DE LEURS CARACTERISTIQUES MECANIQUES, NOTAMMENT LEUR TENACITE. DANS LE CAS DU COUPLE SIC/SIC, NOUS AVONS ANALYSE FINEMENT L'EVOLUTION DU TROISIEME CORPS AU COURS DU FROTTEMENT ET MIS EN EVIDENCE LE MECANISME D'USURE DE CE MATERIAU. DES RESULTATS CONCERNANT LES EFFETS DE L'IMPLANTATION D'IONS BORE DANS LE NICKEL OU D'IONS CUIVRE ET TITANE DANS SIC SONT EGALEMENT PRESENTES
Book Synopsis Dictionary of Building and Civil Engineering by : Don Montague
Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.
Book Synopsis Experiments Past by : Jodi Reeves Flores
Download or read book Experiments Past written by Jodi Reeves Flores and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: With Experiments Past the important role that experimental archaeology has played in the development of archaeology is finally uncovered and understood. Experimental archaeology is a method to attempt to replicate archaeological artefacts and/or processes to test certain hypotheses or discover information about those artefacts and/or processes. It has been a key part of archaeology for well over a century, but such experiments are often embedded in wider research, conducted in isolation or never published or reported. Experiments Pasts provides readers with a glimpse of experimental work and experience that was previously inaccessible due to language, geographic and documentation barriers, while establishing a historical context for the issues confronting experimental archaeology today. This volume contains formal papers on the history of experimental methodologies in archaeology, as well as personal experiences of the development of experimental archaeology from early leaders in the field, such as Hans-Ole Hansen. Also represented in these chapters are the histories of experimental approaches to taphonomy, the archaeology of boats, building structures and agricultural practices, as well as narratives on how experimental archaeology has developed on a national level in several European countries and its role in encouraging a wide-scale interest and engagement with the past.
Download or read book World List of Universities written by and published by . This book was released on 1952 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Accidental and Experimental Archaeometallurgy by : David Dungworth
Download or read book Accidental and Experimental Archaeometallurgy written by David Dungworth and published by . This book was released on 2013-05 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :International Atomic Energy Agency Publisher :International Atomic Energy Agency ISBN 13 :9789201063205 Total Pages :72 pages Book Rating :4.0/5 (632 download)
Book Synopsis In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906 by : International Atomic Energy Agency
Download or read book In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906 written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2020-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.
Book Synopsis Per and polyfluorinated substances in the Nordic Countries by : Stefan Posner
Download or read book Per and polyfluorinated substances in the Nordic Countries written by Stefan Posner and published by Nordic Council of Ministers. This book was released on 2013-06-19 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Tema Nord report presents a study based on open information and custom market research to review the most common perfluorinated substances (PFC) with less focus on PFOS and PFOA. The study includes three major parts:1) Identification of relevant per-and polyfluorinated substances and their use in various industrial sectors in the Nordic market by interviews with major players and database information; 2) Emissions to and occurence in the Nordic environment of the substances described in 1); 3) A summary of knowledge of the toxic effects on humans and the environment of substances prioritized in 2); There is a lack of physical chemical data, analystical reference substances, human and environmental occurrence and toxicology data, as well as market information regarding PFCs other than PFOA and PFOS and the current legislation cannot enforce disclosure of specific PFC substance information.
Book Synopsis The Emergence of Pressure Blade Making by : Pierre M. Desrosiers
Download or read book The Emergence of Pressure Blade Making written by Pierre M. Desrosiers and published by Springer Science & Business Media. This book was released on 2012-03-13 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human development is a long and steady process that began with stone tool making. Because of this skill, humans were able to adapt to climate changes, discover new territories, and invent new technologies. "Pressure knapping" is the common term for one method of creating stone tools, where a larger device or blade specifically made for this purpose is use to press out the stone tool. Pressure knapping was invented in different locations and at different points in time, representing the adoption of the Neolithic way of life in the Old world. Recent research on pressure knapping has led for the first time to a global thesis on this technique. The contributors to this seminal work combine research findings on pressure knapping from different cultures around the globe to develope a cohesive theory. This contributions to this volume represents a significant development to research on pressure knapping, as well as the field of lithic studies in general. This work will be an important reference for anyone studying the Paleolithic, Mesolithic, and Neolithic periods, lithic studies, technologies, and more generally, cultural transmission.
Author :Lord William Taylour Publisher :W W Norton & Company Incorporated ISBN 13 :9780500275863 Total Pages :180 pages Book Rating :4.2/5 (758 download)
Book Synopsis The Mycenaeans by : Lord William Taylour
Download or read book The Mycenaeans written by Lord William Taylour and published by W W Norton & Company Incorporated. This book was released on 1990 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies the distinctive culture of the Mycenaeans, examining the architectural, engineering and artistic achievements of this civilization which dominated the pre-Classical era of Greek history.
Book Synopsis Historical Dictionary of Laos by : Martin Stuart-Fox
Download or read book Historical Dictionary of Laos written by Martin Stuart-Fox and published by Rowman & Littlefield. This book was released on 2023-02-06 with total page 751 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laos has the smallest population, the weakest military, and despite rapid economic growth in recent years, one of the lowest levels of per capita income in mainland Southeast Asia. Yet a glance at the map reveals its strategic location, between China and Cambodia and Thailand and Vietnam. As Laos was formerly a crossroads for trade routes, the socialist government of the Lao People’s Democratic Republic seeks to transform the country into a prosperous crossroads at the heart of this rapidly developing region. Historical Dictionary of Laos, Fourth Edition provides an in-depth examination of one of the least-known countries in Southeast Asia through a detailed chronology, comprehensive introduction, and extensive bibliography. The dictionary section has more than 1,000 cross-referenced entries on important personalities, as well as aspects of the country’s politics, economy, foreign relations, religion, and culture. This book will be an excellent resource for students, researchers, and anyone wanting to know more about Laos.
Book Synopsis Greece in the Bronze Age by : Emily Vermeule
Download or read book Greece in the Bronze Age written by Emily Vermeule and published by . This book was released on 1964 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metamorphoses written by Emanuele Coccia and published by John Wiley & Sons. This book was released on 2021-06-09 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are all fascinated by the mystery of metamorphosis – of the caterpillar that transforms itself into a butterfly. Their bodies have almost nothing in common. They don’t share the same world: one crawls on the ground and the other flutters its wings in the air. And yet they are one and the same life. Emanuele Coccia argues that metamorphosis – the phenomenon that allows the same life to subsist in disparate bodies – is the relationship that binds all species together and unites the living with the non-living. Bacteria, viruses, fungi, plants, animals: they are all one and the same life. Each species, including the human species, is the metamorphosis of all those that preceded it – the same life, cobbling together a new body and a new form in order to exist differently. And there is no opposition between the living and the non-living: life is always the reincarnation of the non-living, a carnival of the telluric substance of a planet – the Earth – that continually draws new faces and new ways of being out of even the smallest particle of its disparate body. By highlighting what joins humans together with other forms of life, Coccia’s brilliant reflection on metamorphosis encourages us to abandon our view of the human species as static and independent and to recognize instead that we are part of a much larger and interconnected form of life.
Book Synopsis Elements for an Anthropology of Technology by : Pierre Lemonnier
Download or read book Elements for an Anthropology of Technology written by Pierre Lemonnier and published by U OF M MUSEUM ANTHRO ARCHAEOLOGY. This book was released on 1992-01-01 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Magdalenian Household by : Ezra B. W. Zubrow
Download or read book The Magdalenian Household written by Ezra B. W. Zubrow and published by State University of New York Press. This book was released on 2010-09-17 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: What was home and family like in Paleolithic Europe? How did mobile hunter-gatherer families live, work, and play together in the fourteenth millennium BP? What were the functional and spatial constraints and markers of their domesticity—the processes that create and sustain a household? Despite the long recognized absence of comprehensive archaeological data on such ancient homes and hearths, the archaeologists in this volume begin unraveling the domesticity of the Upper Paleolithic by drawing on both an immense trove of new material evidence and comparative site data, and a range of incisive and illuminating ethnographic analogies, theoretical models, and simulations. Five Late Magdalenian sites from the Paris Basin and one later Azilian site provide striking evidence of well preserved camps of short duration, situated on valley bottoms and buried by gentle floods. Of particular interest and value is the site of Verberie, rich in lithic tools, faunal remains, hearts, and other indicators of spatial organization, which has been excavated continuously for twenty-six years by the same director and provides an unparalleled source of information on Paleolithic domesticity. The first group of essays and reports look at the technology and demographic evidences of domesticity; the second set seeks clues to the spatial patterning of Paleolithic households; while the final essays draw on ethnographic analogies to reconstruct and interpret gendered divisions of labor, perishable technologies, and other activities not directly recognizable from archaeological remains.
Author :Diwan Jarmani Dass Publisher :Penguin Random House India Private Limited ISBN 13 :9353497841 Total Pages :215 pages Book Rating :4.3/5 (534 download)
Download or read book Maharani written by Diwan Jarmani Dass and published by Penguin Random House India Private Limited. This book was released on 2020-08-26 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sequel to the bestseller Maharaja. A rare treasure of true stories that offer a deep insight into the glamorous and sensuous Lives of the Indian and European Maharanis of India. Intriguing as well as valuable. Maharani is at once a historical romance and a sociological document, as it vividly recounts a bygone era, an era perhaps never to return again. The author served Indian Maharajas for over 50 years accompanying them on their amorous trips to private retreats in India and abroad. He brilliantly recounts the extraordinary lives of the Maharanis of the richest Men the World has ever seen.
Book Synopsis Transactions - The South African Institute of Electrical Engineers by : South African Institute of Electrical Engineers
Download or read book Transactions - The South African Institute of Electrical Engineers written by South African Institute of Electrical Engineers and published by . This book was released on 1955 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
