Polycristaux À Grains Fins Élaborés Par Métallurgie Des Poudres

Polycristaux À Grains Fins Élaborés Par Métallurgie Des Poudres PDF Author: Quang Hien Bui
Publisher: Omniscriptum
ISBN: 9786131518058
Category :
Languages : fr
Pages : 248

Book Description
Les principes de base de l'' laboration des mat riaux pr sentant de bonnes propri t s m caniques sont connus depuis que la th orie des dislocations fut d velopp e. Si la ductilit n cessite une mobilit raisonnable des dislocations, la r sistance m canique est li e la pr sence des obstacles qui limitent le mouvement des dislocations. Parmi les diff rentes m thodes pour introduire ces obstacles l''affinage de la taille des grains a une contribution importante. Cependant, les propri t s m caniques d''un agr gat polycristallin ne d pendent pas uniquement de la taille moyenne des grains mais aussi de la dispersion des tailles de grains. La m tallurgie des poudres est une technologie versatile pour laborer des microstructures " la demande." Dans ce cadre, nous avons utilis la compaction isostatique chaud et le frittage flash pour g n rer partir de poudres de nickel pur, diff rents microstructures. En parall le, nous avons, dans le cadre d''une mod lisation microm canique selon un sch ma auto coh rent g n ralis , mod lis le comportement macroscopique tenant compte des fraction volumiques des phases constituantes (grains, joints de grains) ainsi que leurs dispersions statistiques.

Spark Plasma Sintering of Materials

Spark Plasma Sintering of Materials PDF Author: Pasquale Cavaliere
Publisher: Springer
ISBN: 303005327X
Category : Technology & Engineering
Languages : en
Pages : 767

Book Description
This book describes spark plasma sintering (SPS) in depth. It addresses fundamentals and material-specific considerations, techniques, and applications across a broad spectrum of materials. The book highlights methods used to consolidate metallic or ceramic particles in very short times. It highlights the production of complex alloys and metal matrix composites with enhanced mechanical and wear properties. Emphasis is placed on the speed of the sintering processes, uniformity in product microstructure and properties, reduced grain growth, the compaction and sintering of materials in one processing step, various materials processing, and high energy efficiency. Current and potential applications in space science and aeronautics, automation, mechanical engineering, and biomedicine are addressed throughout the book.

Innovative Processing and Manufacturing of Advanced Ceramics and Composites II

Innovative Processing and Manufacturing of Advanced Ceramics and Composites II PDF Author: Tatsuki Ohji
Publisher: John Wiley & Sons
ISBN: 1118771443
Category : Technology & Engineering
Languages : en
Pages : 214

Book Description
Contains collection of papers from the below symposia held during the 10th Pacific Rim Conference on Ceramic and Glass Technology (PacRim10), June 2-7, 2013, in Coronado, California 2012: Novel, Green, and Strategic Processing and Manufacturing Technologies Polymer Derived Ceramics and Composites Advanced Powder Processing and Manufacturing Technologies Synthesis and Processing of Materials Using Electric Fields/Currents