Atomic layer-deposited TiO2 coatings on NiTi surface

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00501809" target="_blank" >RIV/68378271:_____/18:00501809 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/18:00327093

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11665-018-3136-x" target="_blank" >http://dx.doi.org/10.1007/s11665-018-3136-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11665-018-3136-x" target="_blank" >10.1007/s11665-018-3136-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Atomic layer-deposited TiO2 coatings on NiTi surface

Popis výsledku v původním jazyce

NiTi alloys may release poisonous Ni ions at the alloys surface. In an attempt to prepare a well-performing surface layer on an NiTi sample, the thermally grown TiO2 layer, which formed during the heat treatment of NiTi, was removed and replaced with a new TiO2 layer prepared using the atomic layer deposition (ALD) method. Using x-ray photoelectron spectroscopy, it was found that the ALD layer prepared at as low a temperature as 100 C deg. contained Ti in oxidation states + 4 and + 3. As for static corrosion properties of the ALD-coated NiTi samples, they further improved compared to those covered by thermally grown oxide. The corrosion rate of samples with thermally grown oxide was 0,00001053 mm/year, whereas the corrosion rate of the ALD-coated samples turned out to be about five times lower. However, cracking of the ALD coating occurred at about 1.5% strain during the superelastic mechanical loading in tension taking place via the propagation of a localized martensite band.n

Název v anglickém jazyce

Atomic layer-deposited TiO2 coatings on NiTi surface

Popis výsledku anglicky

NiTi alloys may release poisonous Ni ions at the alloys surface. In an attempt to prepare a well-performing surface layer on an NiTi sample, the thermally grown TiO2 layer, which formed during the heat treatment of NiTi, was removed and replaced with a new TiO2 layer prepared using the atomic layer deposition (ALD) method. Using x-ray photoelectron spectroscopy, it was found that the ALD layer prepared at as low a temperature as 100 C deg. contained Ti in oxidation states + 4 and + 3. As for static corrosion properties of the ALD-coated NiTi samples, they further improved compared to those covered by thermally grown oxide. The corrosion rate of samples with thermally grown oxide was 0,00001053 mm/year, whereas the corrosion rate of the ALD-coated samples turned out to be about five times lower. However, cracking of the ALD coating occurred at about 1.5% strain during the superelastic mechanical loading in tension taking place via the propagation of a localized martensite band.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/GB14-36566G" target="_blank" >GB14-36566G: Multidisciplinární výzkumné centrum moderních materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Materials Engineering and Performance

ISSN

1059-9495

e-ISSN

—

Svazek periodika

27

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

572-579

Kód UT WoS článku

000424305800024

EID výsledku v databázi Scopus

2-s2.0-85040587065