Riedel, Ralf ; Wiehl, Leonore ; Zerr, Andreas ; Zinin, Pavel ; Kroll, Peter
Hrsg.: Dronskowski, R. ; Kikkawa, S. ; Stein, A. (2017)
Superhard Materials.
In: Handbook of Solid State Chemistry
doi: 10.1002/9783527691036.hsscvol6014
Buchkapitel, Bibliographie
Kurzbeschreibung (Abstract)
The search for superhard materials is motivated by technical applications under extreme conditions. The term "superhard" usually denotes materials with Vickers hardness (HV) larger than 40 GPa. This chapter presents some classes of hardest compounds, and concentrates on novel nitrides and some carbides and carbonitrides. It summarizes the latest developments in modeling and synthesis as well as potential properties of advanced materials with super- and ultrahard mechanical properties. The chapter presents a short overview of hardness and elastic properties. The elastic properties of an isotropic homogeneous solid can be described by any two of the four quantities: Young's modulus, shear (or rigidity) modulus, bulk modulus, Poisson's ratio. The process of hardness determination involves various mechanisms, among which are volume compression, shear deformation, bond breaking, and creation and motion of dislocations. The phenomenological correlations between hardness and elastic properties of a material serve excellently to estimate hardness of a single crystal.
| Typ des Eintrags: | Buchkapitel |
|---|---|
| Erschienen: | 2017 |
| Herausgeber: | Dronskowski, R. ; Kikkawa, S. ; Stein, A. |
| Autor(en): | Riedel, Ralf ; Wiehl, Leonore ; Zerr, Andreas ; Zinin, Pavel ; Kroll, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Superhard Materials |
| Sprache: | Englisch |
| Publikationsjahr: | 9 August 2017 |
| Verlag: | Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany |
| (Heft-)Nummer: | 8 |
| Buchtitel: | Handbook of Solid State Chemistry |
| Band einer Reihe: | 6 |
| DOI: | 10.1002/9783527691036.hsscvol6014 |
| URL / URN: | https://doi.org/10.1002/9783527691036.hsscvol6014 |
| Kurzbeschreibung (Abstract): | The search for superhard materials is motivated by technical applications under extreme conditions. The term "superhard" usually denotes materials with Vickers hardness (HV) larger than 40 GPa. This chapter presents some classes of hardest compounds, and concentrates on novel nitrides and some carbides and carbonitrides. It summarizes the latest developments in modeling and synthesis as well as potential properties of advanced materials with super- and ultrahard mechanical properties. The chapter presents a short overview of hardness and elastic properties. The elastic properties of an isotropic homogeneous solid can be described by any two of the four quantities: Young's modulus, shear (or rigidity) modulus, bulk modulus, Poisson's ratio. The process of hardness determination involves various mechanisms, among which are volume compression, shear deformation, bond breaking, and creation and motion of dislocations. The phenomenological correlations between hardness and elastic properties of a material serve excellently to estimate hardness of a single crystal. |
| Freie Schlagworte: | diamond-like boron carbides, elastic properties, hardness Determination, nitrides, superhard materials |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 15 Jan 2018 10:01 |
| Letzte Änderung: | 15 Jan 2018 10:01 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum