Dzivenko, D. A. ; Zerr, A. ; Miehe, G. ; Riedel, R. (2009)
Synthesis and properties of oxygen-bearing c-Zr3N4 and c-Hf3N4.
In: Journal of Alloys and Compounds, 480 (1)
doi: 10.1016/j.jallcom.2008.10.011
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
This paper presents our recent results on synthesis and properties of high-pressure cubic zirconium(IV)- and hafnium(IV) nitrides having Th3P4-type structure, c-M3N4 (M = Zr or Hf). c-M3N4 were first synthesized in microscopic amounts in a laser-heated diamond anvil cell (LH-DAC) at pressures above 15 GPa and temperatures above 2500 K. Further, macroscopic amounts of c-Hf3N4 and of a new oxygen-bearing zirconium nitride, c-Zr2.86(N0.88O0.12)4, were synthesized at 12 GPa and about 1900 K using a multi-anvil apparatus. The lattice parameter of c-Hf3N4 was determined to be a0 = 670.2(1) pm. The a0 of c-Zr2.86(N0.88O0.12)4 of 675.49(1) pm was found to be slightly larger than that of c-Zr3N4 (674.0(6) pm). The bulk moduli, B0, of 219 GPa for c-Zr2.86(N0.88O0.12)4 and of 227 GPa for c-Hf3N4 were obtained from compression measurements. Combining the compression and indentation data we determined for c-Zr2.86(N0.88O0.12)4 its isotropic shear modulus G0 = 96 GPa. Finally, Vickers microhardness, indentation fracture toughness and thermal expansion of c-Zr2.86(N0.88O0.12)4 were measured.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2009 |
| Autor(en): | Dzivenko, D. A. ; Zerr, A. ; Miehe, G. ; Riedel, R. |
| Art des Eintrags: | Bibliographie |
| Titel: | Synthesis and properties of oxygen-bearing c-Zr3N4 and c-Hf3N4 |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Juli 2009 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Alloys and Compounds |
| Jahrgang/Volume einer Zeitschrift: | 480 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1016/j.jallcom.2008.10.011 |
| Kurzbeschreibung (Abstract): | This paper presents our recent results on synthesis and properties of high-pressure cubic zirconium(IV)- and hafnium(IV) nitrides having Th3P4-type structure, c-M3N4 (M = Zr or Hf). c-M3N4 were first synthesized in microscopic amounts in a laser-heated diamond anvil cell (LH-DAC) at pressures above 15 GPa and temperatures above 2500 K. Further, macroscopic amounts of c-Hf3N4 and of a new oxygen-bearing zirconium nitride, c-Zr2.86(N0.88O0.12)4, were synthesized at 12 GPa and about 1900 K using a multi-anvil apparatus. The lattice parameter of c-Hf3N4 was determined to be a0 = 670.2(1) pm. The a0 of c-Zr2.86(N0.88O0.12)4 of 675.49(1) pm was found to be slightly larger than that of c-Zr3N4 (674.0(6) pm). The bulk moduli, B0, of 219 GPa for c-Zr2.86(N0.88O0.12)4 and of 227 GPa for c-Hf3N4 were obtained from compression measurements. Combining the compression and indentation data we determined for c-Zr2.86(N0.88O0.12)4 its isotropic shear modulus G0 = 96 GPa. Finally, Vickers microhardness, indentation fracture toughness and thermal expansion of c-Zr2.86(N0.88O0.12)4 were measured. |
| Freie Schlagworte: | Nitride materials, Transition metal alloys and compounds, Crystal structure, Mechanical properties, High pressure |
| 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: | 12 Apr 2012 09:26 |
| Letzte Änderung: | 05 Mär 2013 10:00 |
| PPN: | |
| Sponsoren: | Financial support of the Deutsche Forschungsgemeinschaft (Bonn, Germany), Financial support of the Fonds der Chemischen Industrie (Frankfurt, Germany), Financial support of the Adolf-Messer-Foundation (Germany), Financial support of DESY (Hamburg, Germany). |
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