Crystal structure studies of natural and synthetic apatites by neutron powder diffraction

T. Leventouri; B. C. Chakoumakos; N. Papanearchou; V. Perdikatsis

doi:10.4028/www.scientific.net/msf.378-381.517

Crystal structure studies of natural and synthetic apatites by neutron powder diffraction

T. Leventouri, B. C. Chakoumakos, N. Papanearchou, V. Perdikatsis

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

6 Scopus citations

Abstract

A comparison of structural parameters of natural and synthetic apatites from Rietveld refinements of neutron powder diffraction data from room temperature down to 11 K is presented. The natural apatites are a carbonate fluorapatite (francolite) and a fluorapatite (harding pegmatite), while the synthetic sample is a low temperature carbonate hydroxyapatite prepared via hydrolysis of calcium phosphate and sodium bicarbonate. The modification of the structural parameters due to the carbonate substitution show a systematic behavior and they are consistent with the carbonate substitution on the mirror plane of the phosphate tetrahedron.

Original language	English
Pages (from-to)	517-522
Number of pages	6
Journal	Materials Science Forum
Volume	378-381
Issue number	II
DOIs	https://doi.org/10.4028/www.scientific.net/msf.378-381.517
State	Published - 2001
Externally published	Yes
Event	7th European Powder Diffraction Conference - Barcelona, Spain Duration: May 20 2000 → May 23 2000

Keywords

Carbonate apatite
Hydroxyapatite
Neutron diffraction
Rietveld refinement

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title = "Crystal structure studies of natural and synthetic apatites by neutron powder diffraction",

abstract = "A comparison of structural parameters of natural and synthetic apatites from Rietveld refinements of neutron powder diffraction data from room temperature down to 11 K is presented. The natural apatites are a carbonate fluorapatite (francolite) and a fluorapatite (harding pegmatite), while the synthetic sample is a low temperature carbonate hydroxyapatite prepared via hydrolysis of calcium phosphate and sodium bicarbonate. The modification of the structural parameters due to the carbonate substitution show a systematic behavior and they are consistent with the carbonate substitution on the mirror plane of the phosphate tetrahedron.",

keywords = "Carbonate apatite, Hydroxyapatite, Neutron diffraction, Rietveld refinement",

author = "T. Leventouri and Chakoumakos, {B. C.} and N. Papanearchou and V. Perdikatsis",

year = "2001",

doi = "10.4028/www.scientific.net/msf.378-381.517",

language = "English",

volume = "378-381",

pages = "517--522",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications",

number = "II",

note = "7th European Powder Diffraction Conference ; Conference date: 20-05-2000 Through 23-05-2000",

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TY - JOUR

T1 - Crystal structure studies of natural and synthetic apatites by neutron powder diffraction

AU - Leventouri, T.

AU - Chakoumakos, B. C.

AU - Papanearchou, N.

AU - Perdikatsis, V.

PY - 2001

Y1 - 2001

N2 - A comparison of structural parameters of natural and synthetic apatites from Rietveld refinements of neutron powder diffraction data from room temperature down to 11 K is presented. The natural apatites are a carbonate fluorapatite (francolite) and a fluorapatite (harding pegmatite), while the synthetic sample is a low temperature carbonate hydroxyapatite prepared via hydrolysis of calcium phosphate and sodium bicarbonate. The modification of the structural parameters due to the carbonate substitution show a systematic behavior and they are consistent with the carbonate substitution on the mirror plane of the phosphate tetrahedron.

AB - A comparison of structural parameters of natural and synthetic apatites from Rietveld refinements of neutron powder diffraction data from room temperature down to 11 K is presented. The natural apatites are a carbonate fluorapatite (francolite) and a fluorapatite (harding pegmatite), while the synthetic sample is a low temperature carbonate hydroxyapatite prepared via hydrolysis of calcium phosphate and sodium bicarbonate. The modification of the structural parameters due to the carbonate substitution show a systematic behavior and they are consistent with the carbonate substitution on the mirror plane of the phosphate tetrahedron.

KW - Carbonate apatite

KW - Hydroxyapatite

KW - Neutron diffraction

KW - Rietveld refinement

UR - http://www.scopus.com/inward/record.url?scp=0035189083&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/msf.378-381.517

DO - 10.4028/www.scientific.net/msf.378-381.517

M3 - Conference article

AN - SCOPUS:0035189083

SN - 0255-5476

VL - 378-381

SP - 517

EP - 522

JO - Materials Science Forum

JF - Materials Science Forum

IS - II

T2 - 7th European Powder Diffraction Conference

Y2 - 20 May 2000 through 23 May 2000

ER -

Crystal structure studies of natural and synthetic apatites by neutron powder diffraction

Abstract

Keywords

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