Protective performance of Zr and Cr based silico-oxynitrides used for dental applications by means of potentiodynamic polarization and odd random phase multisine electrochemical impedance spectroscopy

Mihaela Dinu, Tom Hauffman, Chiara Cordioli, Alina Vladescu, Mariana Braic, Annick Hubin, Cosmin M. Cotrut

Результат исследований: Материалы для журналаСтатья

8 Цитирования (Scopus)

Выдержка

Zr and Cr based silico-oxynitrides were deposited on CoCr dental alloys by cathodic arc evaporation method, at two bias voltages. Potentiodynamic polarization and ORP-multisine EIS were employed to assess the performance of the coatings during 72 h of immersion in artificial saliva. Enhanced corrosion resistance was exhibited by coatings deposited at higher bias voltage, ascribed to the beneficial effect of the more intense ion bombardment during the deposition, which determined a defect-free structure. Among them, ZrSiON200 coating exhibited the highest protective performance in time to the CoCr substrate ascribed to the formation of a stable passive layer inhibiting the corrosion.

Язык оригиналаАнглийский
Страницы (с-по)118-128
Число страниц11
ЖурналCorrosion Science
Том115
DOI
СостояниеОпубликовано - 1 фев 2017
Опубликовано для внешнего пользованияДа

Отпечаток

Potentiodynamic polarization
Electrochemical impedance spectroscopy
Bias voltage
Coatings
Dental alloys
Dental Alloys
Artificial Saliva
Ion bombardment
Corrosion resistance
Evaporation
Corrosion
Defects
Substrates

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

Цитировать

Protective performance of Zr and Cr based silico-oxynitrides used for dental applications by means of potentiodynamic polarization and odd random phase multisine electrochemical impedance spectroscopy. / Dinu, Mihaela; Hauffman, Tom; Cordioli, Chiara; Vladescu, Alina; Braic, Mariana; Hubin, Annick; Cotrut, Cosmin M.

В: Corrosion Science, Том 115, 01.02.2017, стр. 118-128.

Результат исследований: Материалы для журналаСтатья

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abstract = "Zr and Cr based silico-oxynitrides were deposited on CoCr dental alloys by cathodic arc evaporation method, at two bias voltages. Potentiodynamic polarization and ORP-multisine EIS were employed to assess the performance of the coatings during 72 h of immersion in artificial saliva. Enhanced corrosion resistance was exhibited by coatings deposited at higher bias voltage, ascribed to the beneficial effect of the more intense ion bombardment during the deposition, which determined a defect-free structure. Among them, ZrSiON200 coating exhibited the highest protective performance in time to the CoCr substrate ascribed to the formation of a stable passive layer inhibiting the corrosion.",
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AU - Dinu, Mihaela

AU - Hauffman, Tom

AU - Cordioli, Chiara

AU - Vladescu, Alina

AU - Braic, Mariana

AU - Hubin, Annick

AU - Cotrut, Cosmin M.

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AB - Zr and Cr based silico-oxynitrides were deposited on CoCr dental alloys by cathodic arc evaporation method, at two bias voltages. Potentiodynamic polarization and ORP-multisine EIS were employed to assess the performance of the coatings during 72 h of immersion in artificial saliva. Enhanced corrosion resistance was exhibited by coatings deposited at higher bias voltage, ascribed to the beneficial effect of the more intense ion bombardment during the deposition, which determined a defect-free structure. Among them, ZrSiON200 coating exhibited the highest protective performance in time to the CoCr substrate ascribed to the formation of a stable passive layer inhibiting the corrosion.

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KW - B. Electrochemical calculation

KW - B. Modelling studies

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