Calcium silicate layer on titanium fabricated by electrospray deposition

Csaba Buga, M. Hunyadi, Zoltán Gácsi, Csaba Hegedűs, József Hakl, Ute Schmidt, Shinn Jyh Ding, A. Csík

Research output: Contribution to journalArticle

Abstract

Titanium and its alloys have been used as implant materials. Non-ideal osseointegration of the implant materials has facilitated the development of the bioactive coatings on the implant surfaces. In this work, the bioactive calcium silicate (CaSi) powder prepared in a green synthesis route was used to cover the surface of Ti implants by a facile electrospray deposition method. Post annealing in air was also applied to form the oxidation layer on the Ti surface with the aim of increasing the bond strength between the CaSi coating layer and Ti substrate. For the characterization of the coatings several analytical methods such as X-ray diffraction, scanning electron microscopy, secondary neutral mass spectrometry, and Raman-spectroscopy were used, in addition to the measurement of bond strength and corrosion resistance. The results indicated a uniform CaSi layer with a thickness of about 1 μm deposited on the Ti substrate. Annealing in the range of 700–900 °C in air resulted in the formation of rutile phase of TiO2; more importantly, annealing at 800 °C did not significantly affect the composition of the CaSi layer consisting of β-Ca2SiO4. The bond strength between the coating layer and Ti substrate can be remarkably enhanced at an annealing temperature of 700 or 800 °C compared with the as-prepared coating without annealing. The annealed coatings had a better corrosion resistance than the as-prepared coating. It is concluded that the electrospray method associated with the post-annealing can be successfully used for the deposition of a CaSi layer with a defined structure and composition on titanium implants.

LanguageEnglish
Pages401-408
Number of pages8
JournalMaterials Science and Engineering C
Volume98
DOIs
Publication statusPublished - May 1 2019

Fingerprint

Oxide minerals
calcium silicates
Silicates
Calcium silicate
titanium alloys
Titanium
Titanium alloys
titanium oxides
corrosion resistance
Titanium dioxide
Mass spectrometry
Corrosion resistance
silicates
mass spectroscopy
titanium
Annealing
coatings
Coatings
Scanning electron microscopy
scanning electron microscopy

Keywords

  • Annealing
  • Bioactive coating
  • Calcium silicate
  • Electrospray deposition

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Calcium silicate layer on titanium fabricated by electrospray deposition. / Buga, Csaba; Hunyadi, M.; Gácsi, Zoltán; Hegedűs, Csaba; Hakl, József; Schmidt, Ute; Ding, Shinn Jyh; Csík, A.

In: Materials Science and Engineering C, Vol. 98, 01.05.2019, p. 401-408.

Research output: Contribution to journalArticle

Buga, Csaba ; Hunyadi, M. ; Gácsi, Zoltán ; Hegedűs, Csaba ; Hakl, József ; Schmidt, Ute ; Ding, Shinn Jyh ; Csík, A. / Calcium silicate layer on titanium fabricated by electrospray deposition. In: Materials Science and Engineering C. 2019 ; Vol. 98. pp. 401-408.
@article{84933a38d4904a0c8296cb461267411e,
title = "Calcium silicate layer on titanium fabricated by electrospray deposition",
abstract = "Titanium and its alloys have been used as implant materials. Non-ideal osseointegration of the implant materials has facilitated the development of the bioactive coatings on the implant surfaces. In this work, the bioactive calcium silicate (CaSi) powder prepared in a green synthesis route was used to cover the surface of Ti implants by a facile electrospray deposition method. Post annealing in air was also applied to form the oxidation layer on the Ti surface with the aim of increasing the bond strength between the CaSi coating layer and Ti substrate. For the characterization of the coatings several analytical methods such as X-ray diffraction, scanning electron microscopy, secondary neutral mass spectrometry, and Raman-spectroscopy were used, in addition to the measurement of bond strength and corrosion resistance. The results indicated a uniform CaSi layer with a thickness of about 1 μm deposited on the Ti substrate. Annealing in the range of 700–900 °C in air resulted in the formation of rutile phase of TiO2; more importantly, annealing at 800 °C did not significantly affect the composition of the CaSi layer consisting of β-Ca2SiO4. The bond strength between the coating layer and Ti substrate can be remarkably enhanced at an annealing temperature of 700 or 800 °C compared with the as-prepared coating without annealing. The annealed coatings had a better corrosion resistance than the as-prepared coating. It is concluded that the electrospray method associated with the post-annealing can be successfully used for the deposition of a CaSi layer with a defined structure and composition on titanium implants.",
keywords = "Annealing, Bioactive coating, Calcium silicate, Electrospray deposition",
author = "Csaba Buga and M. Hunyadi and Zolt{\'a}n G{\'a}csi and Csaba Hegedűs and J{\'o}zsef Hakl and Ute Schmidt and Ding, {Shinn Jyh} and A. Cs{\'i}k",
year = "2019",
month = "5",
day = "1",
doi = "10.1016/j.msec.2019.01.011",
language = "English",
volume = "98",
pages = "401--408",
journal = "Materials Science and Engineering C",
issn = "0928-4931",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Calcium silicate layer on titanium fabricated by electrospray deposition

AU - Buga, Csaba

AU - Hunyadi, M.

AU - Gácsi, Zoltán

AU - Hegedűs, Csaba

AU - Hakl, József

AU - Schmidt, Ute

AU - Ding, Shinn Jyh

AU - Csík, A.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - Titanium and its alloys have been used as implant materials. Non-ideal osseointegration of the implant materials has facilitated the development of the bioactive coatings on the implant surfaces. In this work, the bioactive calcium silicate (CaSi) powder prepared in a green synthesis route was used to cover the surface of Ti implants by a facile electrospray deposition method. Post annealing in air was also applied to form the oxidation layer on the Ti surface with the aim of increasing the bond strength between the CaSi coating layer and Ti substrate. For the characterization of the coatings several analytical methods such as X-ray diffraction, scanning electron microscopy, secondary neutral mass spectrometry, and Raman-spectroscopy were used, in addition to the measurement of bond strength and corrosion resistance. The results indicated a uniform CaSi layer with a thickness of about 1 μm deposited on the Ti substrate. Annealing in the range of 700–900 °C in air resulted in the formation of rutile phase of TiO2; more importantly, annealing at 800 °C did not significantly affect the composition of the CaSi layer consisting of β-Ca2SiO4. The bond strength between the coating layer and Ti substrate can be remarkably enhanced at an annealing temperature of 700 or 800 °C compared with the as-prepared coating without annealing. The annealed coatings had a better corrosion resistance than the as-prepared coating. It is concluded that the electrospray method associated with the post-annealing can be successfully used for the deposition of a CaSi layer with a defined structure and composition on titanium implants.

AB - Titanium and its alloys have been used as implant materials. Non-ideal osseointegration of the implant materials has facilitated the development of the bioactive coatings on the implant surfaces. In this work, the bioactive calcium silicate (CaSi) powder prepared in a green synthesis route was used to cover the surface of Ti implants by a facile electrospray deposition method. Post annealing in air was also applied to form the oxidation layer on the Ti surface with the aim of increasing the bond strength between the CaSi coating layer and Ti substrate. For the characterization of the coatings several analytical methods such as X-ray diffraction, scanning electron microscopy, secondary neutral mass spectrometry, and Raman-spectroscopy were used, in addition to the measurement of bond strength and corrosion resistance. The results indicated a uniform CaSi layer with a thickness of about 1 μm deposited on the Ti substrate. Annealing in the range of 700–900 °C in air resulted in the formation of rutile phase of TiO2; more importantly, annealing at 800 °C did not significantly affect the composition of the CaSi layer consisting of β-Ca2SiO4. The bond strength between the coating layer and Ti substrate can be remarkably enhanced at an annealing temperature of 700 or 800 °C compared with the as-prepared coating without annealing. The annealed coatings had a better corrosion resistance than the as-prepared coating. It is concluded that the electrospray method associated with the post-annealing can be successfully used for the deposition of a CaSi layer with a defined structure and composition on titanium implants.

KW - Annealing

KW - Bioactive coating

KW - Calcium silicate

KW - Electrospray deposition

UR - http://www.scopus.com/inward/record.url?scp=85059549194&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85059549194&partnerID=8YFLogxK

U2 - 10.1016/j.msec.2019.01.011

DO - 10.1016/j.msec.2019.01.011

M3 - Article

VL - 98

SP - 401

EP - 408

JO - Materials Science and Engineering C

T2 - Materials Science and Engineering C

JF - Materials Science and Engineering C

SN - 0928-4931

ER -