Influence of post-deposition heating time and the presence of water vapor on sputter-coated calcium phosphate crystallinity

Y. Yang, K. H. Kim, C. M. Agrawal, J. L. Ong

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Extensive research suggested that calcium phosphate (CaP) coatings on titanium implants are essential for early bone response. However, the characterization of CaP crystallinity and the means to control coating crystallinity are not well-established. In this study, the effect of a 400°C heat treatment for 1, 2, or 4 hours, and in the presence or absence of water vapor, on CaP crystallinity was investigated. Scanning electron microscopy indicated dense as-sputtered coatings. Increase in coating crystallinity was observed to be consistent with the increasing number of PO4 peaks observed as a result of different heat treatments. In addition, x-ray diffraction analyses indicated amorphous as-sputtered coatings, whereas crystalline CaP coatings in the range of 0-85% were observed after different post-deposition heat treatments. It was concluded that the presence of water vapor and post-deposition heat treatment time significantly affect the crystallinity of CaP coatings, which may ultimately affect bone healing.

Original languageEnglish (US)
Pages (from-to)833-837
Number of pages5
JournalJournal of Dental Research
Volume82
Issue number10
StatePublished - Oct 2003

Fingerprint

Steam
Heating
Hot Temperature
Bone and Bones
Titanium
Electron Scanning Microscopy
X-Rays
calcium phosphate
Research

Keywords

  • Calcium phosphate coating
  • Crystallinity
  • Fourier transform infrared spectroscopy
  • Heat treatment
  • X-ray diffraction

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Influence of post-deposition heating time and the presence of water vapor on sputter-coated calcium phosphate crystallinity. / Yang, Y.; Kim, K. H.; Agrawal, C. M.; Ong, J. L.

In: Journal of Dental Research, Vol. 82, No. 10, 10.2003, p. 833-837.

Research output: Contribution to journalArticle

@article{78880c4bdf594adf8a51da0eeb031755,
title = "Influence of post-deposition heating time and the presence of water vapor on sputter-coated calcium phosphate crystallinity",
abstract = "Extensive research suggested that calcium phosphate (CaP) coatings on titanium implants are essential for early bone response. However, the characterization of CaP crystallinity and the means to control coating crystallinity are not well-established. In this study, the effect of a 400°C heat treatment for 1, 2, or 4 hours, and in the presence or absence of water vapor, on CaP crystallinity was investigated. Scanning electron microscopy indicated dense as-sputtered coatings. Increase in coating crystallinity was observed to be consistent with the increasing number of PO4 peaks observed as a result of different heat treatments. In addition, x-ray diffraction analyses indicated amorphous as-sputtered coatings, whereas crystalline CaP coatings in the range of 0-85{\%} were observed after different post-deposition heat treatments. It was concluded that the presence of water vapor and post-deposition heat treatment time significantly affect the crystallinity of CaP coatings, which may ultimately affect bone healing.",
keywords = "Calcium phosphate coating, Crystallinity, Fourier transform infrared spectroscopy, Heat treatment, X-ray diffraction",
author = "Y. Yang and Kim, {K. H.} and Agrawal, {C. M.} and Ong, {J. L.}",
year = "2003",
month = "10",
language = "English (US)",
volume = "82",
pages = "833--837",
journal = "Journal of Dental Research",
issn = "0022-0345",
publisher = "SAGE Publications Inc.",
number = "10",

}

TY - JOUR

T1 - Influence of post-deposition heating time and the presence of water vapor on sputter-coated calcium phosphate crystallinity

AU - Yang, Y.

AU - Kim, K. H.

AU - Agrawal, C. M.

AU - Ong, J. L.

PY - 2003/10

Y1 - 2003/10

N2 - Extensive research suggested that calcium phosphate (CaP) coatings on titanium implants are essential for early bone response. However, the characterization of CaP crystallinity and the means to control coating crystallinity are not well-established. In this study, the effect of a 400°C heat treatment for 1, 2, or 4 hours, and in the presence or absence of water vapor, on CaP crystallinity was investigated. Scanning electron microscopy indicated dense as-sputtered coatings. Increase in coating crystallinity was observed to be consistent with the increasing number of PO4 peaks observed as a result of different heat treatments. In addition, x-ray diffraction analyses indicated amorphous as-sputtered coatings, whereas crystalline CaP coatings in the range of 0-85% were observed after different post-deposition heat treatments. It was concluded that the presence of water vapor and post-deposition heat treatment time significantly affect the crystallinity of CaP coatings, which may ultimately affect bone healing.

AB - Extensive research suggested that calcium phosphate (CaP) coatings on titanium implants are essential for early bone response. However, the characterization of CaP crystallinity and the means to control coating crystallinity are not well-established. In this study, the effect of a 400°C heat treatment for 1, 2, or 4 hours, and in the presence or absence of water vapor, on CaP crystallinity was investigated. Scanning electron microscopy indicated dense as-sputtered coatings. Increase in coating crystallinity was observed to be consistent with the increasing number of PO4 peaks observed as a result of different heat treatments. In addition, x-ray diffraction analyses indicated amorphous as-sputtered coatings, whereas crystalline CaP coatings in the range of 0-85% were observed after different post-deposition heat treatments. It was concluded that the presence of water vapor and post-deposition heat treatment time significantly affect the crystallinity of CaP coatings, which may ultimately affect bone healing.

KW - Calcium phosphate coating

KW - Crystallinity

KW - Fourier transform infrared spectroscopy

KW - Heat treatment

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=0242304431&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0242304431&partnerID=8YFLogxK

M3 - Article

C2 - 14514766

AN - SCOPUS:0242304431

VL - 82

SP - 833

EP - 837

JO - Journal of Dental Research

JF - Journal of Dental Research

SN - 0022-0345

IS - 10

ER -