Femtosecond Pulsed Laser Deposition of Chromium Diboride-Rich Thin Films
Chromium borides are promising candidates for several structural applications including protective coatings for materials exposed to corrosive and abrasive environments. In this paper the pulsed laser deposition of chromium diboride-rich thin films has been carried out in vacuum by using a frequency...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2019-11-01
|
Series: | Coatings |
Subjects: | |
Online Access: | https://www.mdpi.com/2079-6412/9/12/777 |
id |
doaj-9fc27e0b918d4b79ae10a1c259ef7a27 |
---|---|
record_format |
Article |
spelling |
doaj-9fc27e0b918d4b79ae10a1c259ef7a272020-11-24T21:50:05ZengMDPI AGCoatings2079-64122019-11-0191277710.3390/coatings9120777coatings9120777Femtosecond Pulsed Laser Deposition of Chromium Diboride-Rich Thin FilmsAngela De Bonis0Agostino Galasso1Alessandro Latini2Julietta V. Rau3Antonio Santagata4Mariangela Curcio5Roberto Teghil6Dipartimento di Scienze, Università della Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, ItalyDipartimento di Scienze, Università della Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, ItalyDipartimento di Chimica, Università di Roma la Sapienza, Piazzale Aldo Moro 5, 00185 Rome, ItalyIstituto di Struttura della Materia, Consiglio Nazionale Delle Ricerche, Via del Fosso del Cavaliere 100, 00133 Rome, ItalyIstituto di Struttura della Materia, Consiglio Nazionale Delle Ricerche, U.O.S. di Potenza, Zona Industriale di Tito Scalo, 85050 Tito Scalo (PZ), ItalyDipartimento di Scienze, Università della Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, ItalyDipartimento di Scienze, Università della Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, ItalyChromium borides are promising candidates for several structural applications including protective coatings for materials exposed to corrosive and abrasive environments. In this paper the pulsed laser deposition of chromium diboride-rich thin films has been carried out in vacuum by using a frequency doubled Nd:glass laser with a pulse duration of 250 fs. The films have been deposited at different substrate temperatures and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. Lastly, the film’s hardness has been studied by Vickers indentation technique. The results indicate that only the films deposited at a substrate temperature of 500 °C are crystalline and formed by chromium diboride, together with a certain amount of boron and chromium, which suggests that, as main mechanism, a process taking place on the surface from atoms and ions from the gas phase. This hypothesis has been confirmed by the study of the plasma produced by the ablation process.https://www.mdpi.com/2079-6412/9/12/777chromium diboridethin filmspulsed laser depositionultra-short pulse laser |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Angela De Bonis Agostino Galasso Alessandro Latini Julietta V. Rau Antonio Santagata Mariangela Curcio Roberto Teghil |
spellingShingle |
Angela De Bonis Agostino Galasso Alessandro Latini Julietta V. Rau Antonio Santagata Mariangela Curcio Roberto Teghil Femtosecond Pulsed Laser Deposition of Chromium Diboride-Rich Thin Films Coatings chromium diboride thin films pulsed laser deposition ultra-short pulse laser |
author_facet |
Angela De Bonis Agostino Galasso Alessandro Latini Julietta V. Rau Antonio Santagata Mariangela Curcio Roberto Teghil |
author_sort |
Angela De Bonis |
title |
Femtosecond Pulsed Laser Deposition of Chromium Diboride-Rich Thin Films |
title_short |
Femtosecond Pulsed Laser Deposition of Chromium Diboride-Rich Thin Films |
title_full |
Femtosecond Pulsed Laser Deposition of Chromium Diboride-Rich Thin Films |
title_fullStr |
Femtosecond Pulsed Laser Deposition of Chromium Diboride-Rich Thin Films |
title_full_unstemmed |
Femtosecond Pulsed Laser Deposition of Chromium Diboride-Rich Thin Films |
title_sort |
femtosecond pulsed laser deposition of chromium diboride-rich thin films |
publisher |
MDPI AG |
series |
Coatings |
issn |
2079-6412 |
publishDate |
2019-11-01 |
description |
Chromium borides are promising candidates for several structural applications including protective coatings for materials exposed to corrosive and abrasive environments. In this paper the pulsed laser deposition of chromium diboride-rich thin films has been carried out in vacuum by using a frequency doubled Nd:glass laser with a pulse duration of 250 fs. The films have been deposited at different substrate temperatures and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. Lastly, the film’s hardness has been studied by Vickers indentation technique. The results indicate that only the films deposited at a substrate temperature of 500 °C are crystalline and formed by chromium diboride, together with a certain amount of boron and chromium, which suggests that, as main mechanism, a process taking place on the surface from atoms and ions from the gas phase. This hypothesis has been confirmed by the study of the plasma produced by the ablation process. |
topic |
chromium diboride thin films pulsed laser deposition ultra-short pulse laser |
url |
https://www.mdpi.com/2079-6412/9/12/777 |
work_keys_str_mv |
AT angeladebonis femtosecondpulsedlaserdepositionofchromiumdiboriderichthinfilms AT agostinogalasso femtosecondpulsedlaserdepositionofchromiumdiboriderichthinfilms AT alessandrolatini femtosecondpulsedlaserdepositionofchromiumdiboriderichthinfilms AT juliettavrau femtosecondpulsedlaserdepositionofchromiumdiboriderichthinfilms AT antoniosantagata femtosecondpulsedlaserdepositionofchromiumdiboriderichthinfilms AT mariangelacurcio femtosecondpulsedlaserdepositionofchromiumdiboriderichthinfilms AT robertoteghil femtosecondpulsedlaserdepositionofchromiumdiboriderichthinfilms |
_version_ |
1725885404704407552 |