Science of Hard Materials


Book Description

This volume contains the proceedings of the first International Conference on the Science of Hard Materials held in Moran, Wyoming, Aug. 23-28, 1981. The objective of the conference was to review and advance the state of knowledge of the basic physical and chemical properties of hard materials and show how these properties influence performance in a variety of applications. To this end, the 49 con tributed papers and the four keynote papers by Prof. Fischmeister and Drs. Hintermann, Exner and Almond, present an excellent overview of the state of the art in the "science" of hard materials. The contents of these proceedings also reflect the fact that hard metal technology is now well matured and several aspects of the behavior of these materials are well understood and firmly established. Structure-property relationships in this class of materials are currently well known. Pitfalls in some of the traditional test methods have been recognized and new test methods are being developed which discriminate between intrinsic material properties and flaw content and distribution. Application of fracture mechanics, al though a late corner to the hard materials area (as compared to other structural materials), is rapidly gaining acceptance and new fracture toughness test methods are being developed. Application of modern analysis and analytical techniques to these materials has begun and entirely new and unexpected information has been obtained. For a variety of reasons, "hard metals" have dominated the research and development scene of "hard materials".




Comprehensive Hard Materials


Book Description

Comprehensive Hard Materials, Three Volume Set deals with the production, uses and properties of the carbides, nitrides and borides of these metals and those of titanium, as well as tools of ceramics, the superhard boron nitrides and diamond and related compounds. Articles include the technologies of powder production (including their precursor materials), milling, granulation, cold and hot compaction, sintering, hot isostatic pressing, hot-pressing, injection moulding, as well as on the coating technologies for refractory metals, hard metals and hard materials. The characterization, testing, quality assurance and applications are also covered. Comprehensive Hard Materials provides meaningful insights on materials at the leading edge of technology. It aids continued research and development of these materials and as such it is a critical information resource to academics and industry professionals facing the technological challenges of the future. Hard materials operate at the leading edge of technology, and continued research and development of such materials is critical to meet the technological challenges of the future. Users of this work can improve their knowledge of basic principles and gain a better understanding of process/structure/property relationships. With the convergence of nanotechnology, coating techniques, and functionally graded materials to the cognitive science of cemented carbides, cermets, advanced ceramics, super-hard materials and composites, it is evident that the full potential of this class of materials is far from exhausted. This work unites these important areas of research and will provide useful insights to users through its extensive cross-referencing and thematic presentation. To link academic to industrial usage of hard materials and vice versa, this work deals with the production, uses and properties of the carbides, nitrides and borides of these metals and those of titanium, as well as tools of ceramics, the superhard boron nitrides and diamond and related compounds.




Machining of Hard Materials


Book Description

Hard machining is a relatively recent technology that can be defined as a machining operation, using tools with geometrically defined cutting edges, of a work piece that has hardness values typically in the 45-70HRc range. This operation always presents the challenge of selecting a cutting tool insert that facilitates high-precision machining of the component, but it presents several advantages when compared with the traditional methodology based in finish grinding operations after heat treatment of work pieces. Machining of Hard Materials aims to provide the reader with the fundamentals and recent advances in the field of hard machining of materials. All the chapters are written by international experts in this important field of research. They cover topics such as: • advanced cutting tools for the machining of hard materials; • the mechanics of cutting and chip formation; • surface integrity; • modelling and simulation; and • computational methods and optimization. Machining of Hard Materials can serve as a useful reference for academics, manufacturing and materials researchers, manufacturing and mechanical engineers, and professionals in machining and related industries. It can also be used as a text for advanced undergraduate or postgraduate students studying mechanical engineering, manufacturing, or materials.




2100+ MCQs with Explanatory Notes For GENERAL SCIENCE 2nd Edition


Book Description

The thouroughly Revised & Updated 2nd Edition of the ebook 2100+ MCQs with Explanatory Notes For GENERAL SCIENCE' has been divided into 6 chapters which have been further divided into 29 Topics containing 2100+ “Multiple Choice Questions” for Quick Revision and Practice. The Unique Selling Proposition of the book is the explanation to each and every question which provides additional info to the students on the subject of the questions and correct reasoning wherever required. The questions have been selected on the basis of the various types of questions being asked in the various exams.




Olympiad Champs Science Class 3 with Past Olympiad Questions 3rd Edition


Book Description

The thoroughly Revised & Updated 3rd Edition of “Olympiad Champs Science Class 3 with Past Olympiad Questions” is a complete preparatory book not only for Olympiad but also for Class 3 Science. The book is prepared on content based on National Curriculum Framework prescribed by NCERT. This new edition has been empowered with Past Questions from various Olympiad Exams like NSO, IOS, GTSE, etc. in both the exercises of every chapter. Further the book Provides engaging content with the help of Teasers, Do You Know, Amazing Facts & Illustrations, which enriches the reading experience for the children. The questions are divided into two levels Level 1 and Level 2. The first level, Level 1, is the beginner’s level which comprises of questions like fillers, analogy and odd one out. The second level is the advanced level. Level 2 comprises of questions based on techniques like matching, chronological sequencing, picture, passage and feature based, statement correct/ incorrect, integer based, puzzle, grid based, crossword, Venn diagram, table/ chart based and much more. Solutions and explanations are provided for all questions at the end of each chapter.




Hard-to-Teach Science Concepts


Book Description

Authors Susan Koba and Carol Mitchell introduce teachers of grades 3- 5 to their conceptual framework for successful instruction of hard-to-teach science concepts. Their methodology comprises four steps: (1) engage students about their preconceptions and address their thinking; (2) target lessons to be learned; (3) determine appropriate strategies; and (4) use Standards-based teaching that builds on student understandings. The authors not only explain how to use their framework but also provide a variety of tools and examples of its application on four hard-to-teach foundational concepts: the flow of energy and matter in ecosystems, force and motion, matter and its transformation, and Earth's shape. Both preservice and inservice elementary school teachers will find this approach appealing, and the authors' engaging writing style and user-friendly tables help educators adapt the method with ease.










Issues in Metal Research: 2011 Edition


Book Description

Issues in Metal Research / 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Metal Research. The editors have built Issues in Metal Research: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Metal Research in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Metal Research / 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.




Handbook of Research on Tribology in Coatings and Surface Treatment


Book Description

Advances are continuously being made in applying the coatings and surface treatments by different techniques to reduce the damages from tribology. Engineers need more detailed information to compare the capability of each coating process in wear resistant and lubrication applications. It is also important to focus on the concepts of tribology in various applications such as the manufacturing process, bio implants, machine elements, and corrosive environments. The need for a comprehensive resource addressing these findings in order to improve wear resistance is unavoidable. The Handbook of Research on Tribology in Coatings and Surface Treatment evaluates the latest advances the fabrication of wear-resistant and lubricant coatings by different techniques and investigates wear-resistant coatings and surface treatments in various applications such as the automobile industry. Covering a wide range of topics such as lubricant coatings and wearable electronic devices, it is ideal for engineers, industry professionals, researchers, academicians, scholars, practitioners, instructors, and students.