crta
Hrvatska znanstvena Sekcija img
bibliografija
3 gif
 Naslovna
 O projektu
 FAQ
 Kontakt
4 gif
Pregledavanje radova
Jednostavno pretraživanje
Napredno pretraživanje
Skupni podaci
Upis novih radova
Upute
Ispravci prijavljenih radova
Ostale bibliografije
Slični projekti
 Bibliografske baze podataka

Pregled bibliografske jedinice broj: 877016

Zbornik radova

Autori: Jelovica Badovinac, Ivana; Kavre Piltaver, Ivna; Šarić, Iva; Peter, Robert; Petravić, Mladen
Naslov: Oxidation of Molybdenum by Low Energy Ion Bombardment
Izvornik: Program and book of abstracts: 24th International conference on materials and technology ; 28-30 September 2016, Portorož, Slovenia / Godec, Matjaž ; Donik, Črtomir ; Paulin, Irena ; Kocijan, Aleksandra (ur.). - Ljubljana : IMT, Ljubljana , 2015. 94 (ISBN: 978-961-94088-0-3).
Skup: 24th International conference on materials and technology
Mjesto i datum: Portorož, Slovenija, 28.-30.9.2016.
Ključne riječi: molybdenum ; oxidation ; XPS
Sažetak:
CoCrMo alloy is currently one of the most important alloys for biomedical applications. This material is characterized by superior wear resistance, hardness and high corrosion resistance and is now frequently used for the metal - on - metal hip resurfacing joints [1]. The release of metal ions due to corrosion is thought to have adverse affects on the surrounding body tissue and ultimately leads to failure of the implant. Thus it is important to fully understand the oxidation mechanisms of CoCrMo alloy that seems to be quite complex [2] and also requires a very good knowledge of the oxidation mechanisms of pure metals: cobalt, chromium and molybdenum. In this study, we compare oxidation of molybdenum by low - energy oxygen ion beams with the thermal oxidation process es in oxygen atmosphere within an analytical ultrahigh vacuum chamber, using x - ray photoemission spectroscopy (XPS). A similar study has been carried out on NiTi alloys [3]. Thermal oxidation of molybdenum requires temperatures above 350°C [4]. At lower temperature the Mo surface remains almost unaffected. In contrast, oxygen ion bombardment of molybdenum surface at room temperature leads to the formation of thin oxide films. The fitting procedure clearly shows contributions of various oxidation states of Mo, Mo(IV), Mo(V) and Mo(VI). At the initial stage of irradiation, rapid surface oxidation was observed, indicating the ion bombardment is more efficient in creating molybdenum oxide films then thermal oxidation.
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Sažetak
Vrsta recenzije: Međunarodna recenzija
Izvorni jezik: ENG
Kategorija: Ostalo
Znanstvena područja:
Fizika
URL Internet adrese: http://icmt24.com/e_files/content/Book%20of%20Abstracts.pdf
Upisao u CROSBI: Ivna Kavre Piltaver (ivna.kavre@uniri.hr), 24. Svi. 2017. u 11:48 sati



Verzija za printanje   za tiskati


upomoc
foot_4