McKie, Amanda ; Winzer, Jami ; Sigalas, Iakovos ; Herrmann, Mathias ; Weiler, Ludwig ; Rödel, Jürgen ; Can, Nedret (2011)
Mechanical properties of cBN–Al composite materials.
In: Ceramics International, 37 (1)
doi: 10.1016/j.ceramint.2010.07.034
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The relationship between microstructure and mechanical properties for a wide range of composite materials based on polycrystalline cubic boron nitride and aluminium as a binder phase (PcBN–Al) has been examined. The PcBN–Al composites were made using high-pressure, high-temperature (HPHT) sintering methods, yielding materials with grain sizes of cBN between 2 and 20 μm and an initial amount of Al binder between 15 and 25 vol.%. Hardness ranged between 15 and 40 GPa, while fracture toughness and strength were between 6.4–8.0 MPa m1/2 and 355–454 MPa, respectively. Fractography was employed to investigate the large scatter in fracture strengths and correlate fracture strength with fracture toughness through the size of the fracture origins.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | McKie, Amanda ; Winzer, Jami ; Sigalas, Iakovos ; Herrmann, Mathias ; Weiler, Ludwig ; Rödel, Jürgen ; Can, Nedret |
| Art des Eintrags: | Bibliographie |
| Titel: | Mechanical properties of cBN–Al composite materials |
| Sprache: | Englisch |
| Publikationsjahr: | Januar 2011 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Ceramics International |
| Jahrgang/Volume einer Zeitschrift: | 37 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1016/j.ceramint.2010.07.034 |
| Kurzbeschreibung (Abstract): | The relationship between microstructure and mechanical properties for a wide range of composite materials based on polycrystalline cubic boron nitride and aluminium as a binder phase (PcBN–Al) has been examined. The PcBN–Al composites were made using high-pressure, high-temperature (HPHT) sintering methods, yielding materials with grain sizes of cBN between 2 and 20 μm and an initial amount of Al binder between 15 and 25 vol.%. Hardness ranged between 15 and 40 GPa, while fracture toughness and strength were between 6.4–8.0 MPa m1/2 and 355–454 MPa, respectively. Fractography was employed to investigate the large scatter in fracture strengths and correlate fracture strength with fracture toughness through the size of the fracture origins. |
| Freie Schlagworte: | Mechanical properties; Hardness; Polycrystalline cubic boron nitride (cBN); Fracture toughness; Bending strength |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 18 Mai 2011 15:20 |
| Letzte Änderung: | 05 Mär 2013 09:47 |
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