Electronic Structure of Refractory Carbides and Nitrides

Electronic Structure of Refractory Carbides and Nitrides PDF Author: V. A. Gubanov
Publisher: Cambridge University Press
ISBN: 9780521418850
Category : Technology & Engineering
Languages : en
Pages : 272

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Book Description
This book presents a systematic description of the electronic and physico-chemical properties of transition metal carbides and nitrides. The discussion is devoted to the theoretical modeling of refractory carbides and nitrides and alloys based on them, and the authors uniquely make use of computational methods to calculate their spectroscopic, electric, magnetic, superconducting, thermodynamical, and mechanical properties.

Electronic Structure of Refractory Carbides and Nitrides

Electronic Structure of Refractory Carbides and Nitrides PDF Author: V. A. Gubanov
Publisher: Cambridge University Press
ISBN: 9780521418850
Category : Technology & Engineering
Languages : en
Pages : 272

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Book Description
This book presents a systematic description of the electronic and physico-chemical properties of transition metal carbides and nitrides. The discussion is devoted to the theoretical modeling of refractory carbides and nitrides and alloys based on them, and the authors uniquely make use of computational methods to calculate their spectroscopic, electric, magnetic, superconducting, thermodynamical, and mechanical properties.

Handbook of Refractory Carbides & Nitrides

Handbook of Refractory Carbides & Nitrides PDF Author: Hugh O. Pierson
Publisher: William Andrew
ISBN: 081551770X
Category : Technology & Engineering
Languages : en
Pages : 363

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Book Description
Refractory carbides and nitrides are useful materials with numerous industrial applications and a promising future, in addition to being materials of great interest to the scientific community. Although most of their applications are recent, the refractory carbides and nitrides have been known for over one hundred years. The industrial importance of the refractory carbides and nitrides is growing rapidly, not only in the traditional and well-established applications based on the strength and refractory nature of these materials such as cutting tools and abrasives, but also in new and promising fields such as electronics and optoelectronics.

Transition Metal Carbides and Nitrides

Transition Metal Carbides and Nitrides PDF Author: Louis Toth
Publisher: Elsevier
ISBN: 032315722X
Category : Technology & Engineering
Languages : en
Pages : 296

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Book Description
Refractory Materials, Volume 7: Transition Metal Carbides and Nitrides discusses the developments in transition metal carbide and nitride research. This volume is organized into nine chapters that emphasize the mechanical and superconducting properties of these compounds. The introductory chapters deal with the general properties, preparation techniques, characterization, crystal chemistry, phase relationships, and thermodynamics of transition metal carbides and nitrides. The following chapter highlights the mechanical properties of these compounds, such as elastic and plastic deformation, fracture, strengthening mechanisms, and hardness. The discussion then shifts to specific electrical and magnetic properties, including electrical resistivity, Hall coefficient, and magnetic susceptibility. A separate chapter is devoted to carbides and nitrides as superconductors. The concluding chapters explore certain theories that explain the mechanisms of band structure and bonding in carbides and nitrides. This volume is of great value to research workers in metallurgy, ceramics, physics, chemistry, and related fields, as well as to advanced students investigating problems concerning high temperature materials or interstitial compounds.

Electric Refractory Materials

Electric Refractory Materials PDF Author: Yukinobu Kumashiro
Publisher: CRC Press
ISBN: 020390818X
Category : Technology & Engineering
Languages : en
Pages : 776

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Book Description
An exploration of electric refractory materials, this book covers developments of blue light-emitting diodes using GaN-based nitrides for laser and high-temperature and -frequency devices. Electric Refractory Materials introduces growth and evaluation standards of films and bulk crystals, with consideration of band structure, surface electronic structure, and lattice vibrations. It also covers heat capacity and thermal conductivity, irradiation properties, and selective surfaces. Focusing on diamond material, the book examines its synthesis and characterization as well as its electrical, optical, and conductive properties. The book also discusses the use of silicon carbide, boron compounds, and other material used in electronic and light-emitting devices.

Preparation, Properties and Electronic Structure of Refractory Carbides and Related Compounds

Preparation, Properties and Electronic Structure of Refractory Carbides and Related Compounds PDF Author: Lars Ramqvist
Publisher:
ISBN:
Category : Refractory transition metal compounds
Languages : en
Pages : 21

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Book Description


Refractory Carbides

Refractory Carbides PDF Author: G. V. Samsonov
Publisher: Springer
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 490

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Book Description
The present stage of technological development makes new and ever more complex demands on materials that have to work under conditions of high temperature and pressure, in high vacuum, and in corrosive media. In consequence special importance is now at tached to the refractory compounds of transition metals of groups IV to VI with such nonmetals as boron, carbon, silicon, and nitro gen. These compounds possess high melting points, great hard ness, and high refractory and corrosion-resisting properties. The most widely used and important compounds of this type from a technological point of view are the carbides, which are already fairly widely used in various fields of technology. The present collection of papers contains the results of re cent investigations into methods of producing high-purity carbides and also components made of the carbides and their alloys. Great attention has been paid to the study of a wide range of properties of the carbides and of alloys based on them, viz., the electro-and thermophysical, thermodynamic, mechanical, and chemical prop erties, and also to the utilization of the carbides as wear-and abrasion-resistant materials. In contrast to many previous publications dealing with carbides, the results presented in this collection relate to the properties of carbides having a definite phase composition, corresponding to a higher degree of purity 0 In some of the contributions the physical and chemical properties of the carbides are interpreted in terms of certain solid-state models and concepts concerning the types of chemical bonding in these compounds.

Electronic Structure Studies of Transition-metal Carbides and Nitrides

Electronic Structure Studies of Transition-metal Carbides and Nitrides PDF Author:
Publisher:
ISBN: 9789178715923
Category :
Languages : en
Pages : 16

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Book Description


Electric Refractory Materials

Electric Refractory Materials PDF Author: Yukinobu Kumashiro
Publisher: CRC Press
ISBN: 0824741609
Category : Technology & Engineering
Languages : en
Pages : 769

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Book Description
An exploration of electric refractory materials, this book covers developments of blue light-emitting diodes using GaN-based nitrides for laser and high-temperature and -frequency devices. "Electric Refractory Materials" introduces growth and evaluation standards of films and bulk crystals, with consideration of band structure, surface electronic structure, and lattice vibrations. It also covers heat capacity and thermal conductivity, irradiation properties, and selective surfaces. Focusing on diamond material, the book examines its synthesis and characterization as well as its electrical, optical, and conductive properties. The book also discusses the use of silicon carbide, boron compounds, and other material used in electronic and light-emitting devices.

Preparation, properties and electronic structure of refractory carbides and related compounds

Preparation, properties and electronic structure of refractory carbides and related compounds PDF Author: Lars Ramqvist
Publisher:
ISBN:
Category :
Languages : sv
Pages : 21

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Book Description


The Physics and Chemistry of Carbides, Nitrides and Borides

The Physics and Chemistry of Carbides, Nitrides and Borides PDF Author: R. Freer
Publisher: Springer Science & Business Media
ISBN: 9400921012
Category : Technology & Engineering
Languages : en
Pages : 716

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Book Description
Carbides, nitrides and borides are families of related refractory materials. Traditionally they have been employed in applications associated with engineering ceramics where either high temperature strength or stability is of primary importance. In recent years there has been a growing awareness of the interesting electrical, thermal and optical properties exhibited by these materials, and the fact that many can be prepared as monolithic ceramics, single crystals and thin films. In practical terms carbides, nitrides and borides offer the prospect of a new generation of semiconductor materials, for example, which can function at very high temperatures in severe environmental conditions. However, as yet, we have only a limited understanding of the detailed physics and chemistry of the materials and how the preparation techniques influence the properties. Under the auspices of the NATO Science Committee an Advanced Research Workshop (ARW) was held on the Physics and Chemistry of Carbides, Nitrides and Borides (University of Manchester, 18-22 September, 1989) in order to assess progress to date and identify the most promising themes and materials for future research. An international group of 38 scientists considered developments in 5 main areas: The preparation of powders, monolithic ceramics, single crystals and thin films; Phase transformations, microstructure, defect structure and mass transport; Materials stability; Theoretical studies; Electrical, thermal and optical properties of bulk materials and thin films.