Journal Article

PHPPUBDB-15542

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Synthesis and properties of oxygen-bearing c-$Zr_3N_4$ and c-$Hf_3N_4$

Dzivenko, D. A. (Corresponding author) ; Zerr, A. ; Miehe, G. ; Riedel, R. ; DESY

2009
Elsevier Lausanne

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Please use a persistent id in citations: doi:10.1016/j.jallcom.2008.10.011

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-M3N4were first syn-thesized in microscopic amounts in a laser-heated diamond anvil cell (LH-DAC) at pressures above15GPa and temperatures above 2500K. Further, macroscopic amounts of c-Hf3N4and of a new oxygen-bearing zirconium nitride, c-Zr2.86(N0.88O0.12)4, were synthesized at 12GPa and about 1900K using amulti-anvil apparatus. The lattice parameter of c-Hf3N4was determined to bea0=670.2(1)pm. Thea0of c-Zr2.86(N0.88O0.12)4of 675.49(1)pm was found to be slightly larger than that of c-Zr3N4(674.0(6)pm).The bulk moduli,B0, of 219GPa for c-Zr2.86(N0.88O0.12)4and of 227GPa for c-Hf3N4were obtained fromcompression measurements. Combining the compression and indentation data we determined for c-Zr2.86(N0.88O0.12)4its isotropic shear modulusG0=96GPa. Finally, Vickers microhardness, indentationfracture toughness and thermal expansion of c-Zr2.86(N0.88O0.12)4were measured

Note: © Elsevier B.V. ; Post referee fulltext in progress; Embargo 12 months from publication

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Contributing Institute(s):

1. Experiments with synchrotron radiation (HASYLAB(-2012))

Research Program(s):

1. DORIS Beamline F3 (POF1-550) (POF1-550)

Experiment(s):

1. DORIS Beamline F3 (DORIS III)

Appears in the scientific report 2009

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Database coverage:
; JCR ; No Author Disambiguation ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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