X-Ray Powder Diffraction Study of Atomic Structure of Nanocrystalline SiC and Diamond Materials

E. Grzanka; B. Palosz; S. Gierlotka; S. Stel'makh; R. Pielaszek; U. Bismayer; J. Neuefeind; P. Jovari; W. Palosz

doi:10.4028/www.scientific.net/msf.443-444.39

X-Ray Powder Diffraction Study of Atomic Structure of Nanocrystalline SiC and Diamond Materials

E. Grzanka, B. Palosz, S. Gierlotka, S. Stel'makh, R. Pielaszek, U. Bismayer, J. Neuefeind, P. Jovari, W. Palosz

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

A considerable fraction of atoms in nanosize particles is at the grain surface (due to the small size of the crystals). We assume that the surface atoms form a separate structural phase relative to the bulk of the grain (the core). Therefore, one set of the lattice parameters characterizing a nanocrystal may be inadequate for a unique description of its structure. An alternative evaluation of diffraction data of nanocparticles, based on the "apparent lattice parameter" is proposed. Based on this new methodology it is shown that real nano-crystals constitiute a complex, more than a one-uniform-phase structure.

Original language	English
Pages (from-to)	39-42
Number of pages	4
Journal	Materials Science Forum
Volume	443-444
DOIs	https://doi.org/10.4028/www.scientific.net/msf.443-444.39
State	Published - 2004
Externally published	Yes
Event	EPDIC 8 Proceedings of the Eighth European Powder Diffraction Conference - Uppsala, Sweden Duration: May 23 2002 → May 26 2002

Keywords

Diffraction
Nanocrystals
Surface Structure

Access to Document

10.4028/www.scientific.net/msf.443-444.39

Cite this

@article{ecce967763f84ef9bc3835f3d0178b9b,

title = "X-Ray Powder Diffraction Study of Atomic Structure of Nanocrystalline SiC and Diamond Materials",

abstract = "A considerable fraction of atoms in nanosize particles is at the grain surface (due to the small size of the crystals). We assume that the surface atoms form a separate structural phase relative to the bulk of the grain (the core). Therefore, one set of the lattice parameters characterizing a nanocrystal may be inadequate for a unique description of its structure. An alternative evaluation of diffraction data of nanocparticles, based on the {"}apparent lattice parameter{"} is proposed. Based on this new methodology it is shown that real nano-crystals constitiute a complex, more than a one-uniform-phase structure.",

keywords = "Diffraction, Nanocrystals, Surface Structure",

author = "E. Grzanka and B. Palosz and S. Gierlotka and S. Stel'makh and R. Pielaszek and U. Bismayer and J. Neuefeind and P. Jovari and W. Palosz",

year = "2004",

doi = "10.4028/www.scientific.net/msf.443-444.39",

language = "English",

volume = "443-444",

pages = "39--42",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications",

note = "EPDIC 8 Proceedings of the Eighth European Powder Diffraction Conference ; Conference date: 23-05-2002 Through 26-05-2002",

}

TY - JOUR

T1 - X-Ray Powder Diffraction Study of Atomic Structure of Nanocrystalline SiC and Diamond Materials

AU - Grzanka, E.

AU - Palosz, B.

AU - Gierlotka, S.

AU - Stel'makh, S.

AU - Pielaszek, R.

AU - Bismayer, U.

AU - Neuefeind, J.

AU - Jovari, P.

AU - Palosz, W.

PY - 2004

Y1 - 2004

N2 - A considerable fraction of atoms in nanosize particles is at the grain surface (due to the small size of the crystals). We assume that the surface atoms form a separate structural phase relative to the bulk of the grain (the core). Therefore, one set of the lattice parameters characterizing a nanocrystal may be inadequate for a unique description of its structure. An alternative evaluation of diffraction data of nanocparticles, based on the "apparent lattice parameter" is proposed. Based on this new methodology it is shown that real nano-crystals constitiute a complex, more than a one-uniform-phase structure.

AB - A considerable fraction of atoms in nanosize particles is at the grain surface (due to the small size of the crystals). We assume that the surface atoms form a separate structural phase relative to the bulk of the grain (the core). Therefore, one set of the lattice parameters characterizing a nanocrystal may be inadequate for a unique description of its structure. An alternative evaluation of diffraction data of nanocparticles, based on the "apparent lattice parameter" is proposed. Based on this new methodology it is shown that real nano-crystals constitiute a complex, more than a one-uniform-phase structure.

KW - Diffraction

KW - Nanocrystals

KW - Surface Structure

UR - http://www.scopus.com/inward/record.url?scp=17644449060&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/msf.443-444.39

DO - 10.4028/www.scientific.net/msf.443-444.39

M3 - Conference article

AN - SCOPUS:17644449060

SN - 0255-5476

VL - 443-444

SP - 39

EP - 42

JO - Materials Science Forum

JF - Materials Science Forum

T2 - EPDIC 8 Proceedings of the Eighth European Powder Diffraction Conference

Y2 - 23 May 2002 through 26 May 2002

ER -

X-Ray Powder Diffraction Study of Atomic Structure of Nanocrystalline SiC and Diamond Materials

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this