Corrosion resistance, mechanical properties and biocompatibility of Hf-containing ZrCN coatings

Cosmin Mihai Cotrut, Viorel Braic, Mihai Balaceanu, Irina Titorencu, Mariana Braic, Anca Constantina Parau

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The aim of this work was to study the properties of Hf containing ZrCN protective layers in term of corrosion resistance, tribological and biocompatible properties, in order to improve the performance and service life of the orthopedic systems. The coatings were prepared by the DC magnetron sputtering technique in a mixture of Ar, N2 and CH4 gases, and analyzed for elemental composition and chemical bonds, crystalline structure, mechanical properties, surface morphology, electrochemical corrosion resistance and tribological performance in Ringer solution, being also evaluated for biocompatibility by in vitro tests. Two overstoichiometric film compositions, with non-metal/metal ratios of about 2.0 and 3.5, respectively, were obtained by varying the total gas (CH4 + N2) flow rate, while maintaining constant the CH4/N2 flow ratio. The coatings characteristics were assessed in comparison to ZrCN reference coatings. The coatings were found to mainly consist of a mixture of crystalline metal carbonitride and free carbon phases. The coatings exhibited a pure fcc solid solution, with (111) preferred orientation and crystallite size in the range 8-16 nm. The hardness values increased at Hf addition with 5.1-5.3 GPa, while critical loads between 42 and 54 N were measured at adhesion scratch test. Better corrosion resistance and tribological characteristics were obtained by incorporating Hf into the basic ZrCN fcc structure. The deposited coatings exhibited good biocompatibility characteristics during in vitro tests, whatever the non-metal/metal ratio. The highest cell viability was found for the ZrHfCN coatings with the highest (∼ 3.5) non-metal/metal ratio.

Original languageEnglish
Pages (from-to)48-55
Number of pages8
JournalThin Solid Films
Volume538
DOIs
Publication statusPublished - 1 Jul 2013
Externally publishedYes

Fingerprint

biocompatibility
Biocompatibility
corrosion resistance
Corrosion resistance
mechanical properties
coatings
Coatings
Mechanical properties
Metals
metals
Gases
Crystalline materials
adhesion tests
electrochemical corrosion
orthopedics
Electrochemical corrosion
service life
Carbon nitride
Chemical bonds
Orthopedics

Keywords

  • Cell viability and proliferation
  • Corrosion resistance
  • Magnetron sputtering
  • ZrHfCN biocompatible coatings

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Corrosion resistance, mechanical properties and biocompatibility of Hf-containing ZrCN coatings. / Cotrut, Cosmin Mihai; Braic, Viorel; Balaceanu, Mihai; Titorencu, Irina; Braic, Mariana; Parau, Anca Constantina.

In: Thin Solid Films, Vol. 538, 01.07.2013, p. 48-55.

Research output: Contribution to journalArticle

Cotrut, Cosmin Mihai ; Braic, Viorel ; Balaceanu, Mihai ; Titorencu, Irina ; Braic, Mariana ; Parau, Anca Constantina. / Corrosion resistance, mechanical properties and biocompatibility of Hf-containing ZrCN coatings. In: Thin Solid Films. 2013 ; Vol. 538. pp. 48-55.
@article{daee8e63f9be4202b263eb7cc9ecbec2,
title = "Corrosion resistance, mechanical properties and biocompatibility of Hf-containing ZrCN coatings",
abstract = "The aim of this work was to study the properties of Hf containing ZrCN protective layers in term of corrosion resistance, tribological and biocompatible properties, in order to improve the performance and service life of the orthopedic systems. The coatings were prepared by the DC magnetron sputtering technique in a mixture of Ar, N2 and CH4 gases, and analyzed for elemental composition and chemical bonds, crystalline structure, mechanical properties, surface morphology, electrochemical corrosion resistance and tribological performance in Ringer solution, being also evaluated for biocompatibility by in vitro tests. Two overstoichiometric film compositions, with non-metal/metal ratios of about 2.0 and 3.5, respectively, were obtained by varying the total gas (CH4 + N2) flow rate, while maintaining constant the CH4/N2 flow ratio. The coatings characteristics were assessed in comparison to ZrCN reference coatings. The coatings were found to mainly consist of a mixture of crystalline metal carbonitride and free carbon phases. The coatings exhibited a pure fcc solid solution, with (111) preferred orientation and crystallite size in the range 8-16 nm. The hardness values increased at Hf addition with 5.1-5.3 GPa, while critical loads between 42 and 54 N were measured at adhesion scratch test. Better corrosion resistance and tribological characteristics were obtained by incorporating Hf into the basic ZrCN fcc structure. The deposited coatings exhibited good biocompatibility characteristics during in vitro tests, whatever the non-metal/metal ratio. The highest cell viability was found for the ZrHfCN coatings with the highest (∼ 3.5) non-metal/metal ratio.",
keywords = "Cell viability and proliferation, Corrosion resistance, Magnetron sputtering, ZrHfCN biocompatible coatings",
author = "Cotrut, {Cosmin Mihai} and Viorel Braic and Mihai Balaceanu and Irina Titorencu and Mariana Braic and Parau, {Anca Constantina}",
year = "2013",
month = "7",
day = "1",
doi = "10.1016/j.tsf.2012.12.100",
language = "English",
volume = "538",
pages = "48--55",
journal = "Thin Solid Films",
issn = "0040-6090",
publisher = "Elsevier",

}

TY - JOUR

T1 - Corrosion resistance, mechanical properties and biocompatibility of Hf-containing ZrCN coatings

AU - Cotrut, Cosmin Mihai

AU - Braic, Viorel

AU - Balaceanu, Mihai

AU - Titorencu, Irina

AU - Braic, Mariana

AU - Parau, Anca Constantina

PY - 2013/7/1

Y1 - 2013/7/1

N2 - The aim of this work was to study the properties of Hf containing ZrCN protective layers in term of corrosion resistance, tribological and biocompatible properties, in order to improve the performance and service life of the orthopedic systems. The coatings were prepared by the DC magnetron sputtering technique in a mixture of Ar, N2 and CH4 gases, and analyzed for elemental composition and chemical bonds, crystalline structure, mechanical properties, surface morphology, electrochemical corrosion resistance and tribological performance in Ringer solution, being also evaluated for biocompatibility by in vitro tests. Two overstoichiometric film compositions, with non-metal/metal ratios of about 2.0 and 3.5, respectively, were obtained by varying the total gas (CH4 + N2) flow rate, while maintaining constant the CH4/N2 flow ratio. The coatings characteristics were assessed in comparison to ZrCN reference coatings. The coatings were found to mainly consist of a mixture of crystalline metal carbonitride and free carbon phases. The coatings exhibited a pure fcc solid solution, with (111) preferred orientation and crystallite size in the range 8-16 nm. The hardness values increased at Hf addition with 5.1-5.3 GPa, while critical loads between 42 and 54 N were measured at adhesion scratch test. Better corrosion resistance and tribological characteristics were obtained by incorporating Hf into the basic ZrCN fcc structure. The deposited coatings exhibited good biocompatibility characteristics during in vitro tests, whatever the non-metal/metal ratio. The highest cell viability was found for the ZrHfCN coatings with the highest (∼ 3.5) non-metal/metal ratio.

AB - The aim of this work was to study the properties of Hf containing ZrCN protective layers in term of corrosion resistance, tribological and biocompatible properties, in order to improve the performance and service life of the orthopedic systems. The coatings were prepared by the DC magnetron sputtering technique in a mixture of Ar, N2 and CH4 gases, and analyzed for elemental composition and chemical bonds, crystalline structure, mechanical properties, surface morphology, electrochemical corrosion resistance and tribological performance in Ringer solution, being also evaluated for biocompatibility by in vitro tests. Two overstoichiometric film compositions, with non-metal/metal ratios of about 2.0 and 3.5, respectively, were obtained by varying the total gas (CH4 + N2) flow rate, while maintaining constant the CH4/N2 flow ratio. The coatings characteristics were assessed in comparison to ZrCN reference coatings. The coatings were found to mainly consist of a mixture of crystalline metal carbonitride and free carbon phases. The coatings exhibited a pure fcc solid solution, with (111) preferred orientation and crystallite size in the range 8-16 nm. The hardness values increased at Hf addition with 5.1-5.3 GPa, while critical loads between 42 and 54 N were measured at adhesion scratch test. Better corrosion resistance and tribological characteristics were obtained by incorporating Hf into the basic ZrCN fcc structure. The deposited coatings exhibited good biocompatibility characteristics during in vitro tests, whatever the non-metal/metal ratio. The highest cell viability was found for the ZrHfCN coatings with the highest (∼ 3.5) non-metal/metal ratio.

KW - Cell viability and proliferation

KW - Corrosion resistance

KW - Magnetron sputtering

KW - ZrHfCN biocompatible coatings

UR - http://www.scopus.com/inward/record.url?scp=84879171880&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84879171880&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2012.12.100

DO - 10.1016/j.tsf.2012.12.100

M3 - Article

VL - 538

SP - 48

EP - 55

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

ER -