Ag (y) :TiN (x) thin films for dry biopotential electrodes: the effect of composition and structural changes on the electrical and mechanical behaviours

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F15%3A00233537" target="_blank" >RIV/68407700:21230/15:00233537 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s00339-014-8943-9" target="_blank" >http://dx.doi.org/10.1007/s00339-014-8943-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00339-014-8943-9" target="_blank" >10.1007/s00339-014-8943-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ag (y) :TiN (x) thin films for dry biopotential electrodes: the effect of composition and structural changes on the electrical and mechanical behaviours

Popis výsledku v původním jazyce

In the present work, Ag (y) :TiN (x) thin films, obtained by reactive DC magnetron sputtering, with decreasing [N]/[Ti] atomic ratios (from 1 to 0.1) and a fixed amount of Ag pellets placed in the erosion zone of a pure Ti target, were studied envisagingtheir application as biopotential electrodes. The strongly under-stoichiometric samples, [N]/[Ti] = 0.1 and 10 at.% Ag; [N]/[Ti] = 0.2 and 8 at.% Ag, were found to be composed of a N-doped hcp-Ti structure, with possible formation of TiAg or Ti2Ag intermetallics. These samples exhibit high electrical resistivity values and low hardness and reduced modulus. In the set of samples indexed to a transition zone, [N]/[Ti] = 0.3 and 15 at.% Ag; [N]/[Ti] = 0.7 and 32 at.% Ag, a hcp-Ti to fcc-TiN phase transformation took place, giving rise to a disaggregated N-deficient TiN matrix. It correlates with the high resistivity values as well as the higher hardness and reduced modulus values that were obtained. The last identified zone comprised the

Název v anglickém jazyce

Ag (y) :TiN (x) thin films for dry biopotential electrodes: the effect of composition and structural changes on the electrical and mechanical behaviours

Popis výsledku anglicky

In the present work, Ag (y) :TiN (x) thin films, obtained by reactive DC magnetron sputtering, with decreasing [N]/[Ti] atomic ratios (from 1 to 0.1) and a fixed amount of Ag pellets placed in the erosion zone of a pure Ti target, were studied envisagingtheir application as biopotential electrodes. The strongly under-stoichiometric samples, [N]/[Ti] = 0.1 and 10 at.% Ag; [N]/[Ti] = 0.2 and 8 at.% Ag, were found to be composed of a N-doped hcp-Ti structure, with possible formation of TiAg or Ti2Ag intermetallics. These samples exhibit high electrical resistivity values and low hardness and reduced modulus. In the set of samples indexed to a transition zone, [N]/[Ti] = 0.3 and 15 at.% Ag; [N]/[Ti] = 0.7 and 32 at.% Ag, a hcp-Ti to fcc-TiN phase transformation took place, giving rise to a disaggregated N-deficient TiN matrix. It correlates with the high resistivity values as well as the higher hardness and reduced modulus values that were obtained. The last identified zone comprised the

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JK - Koroze a povrchové úpravy materiálu

OECD FORD obor

—

Projekt

<a href="/cs/project/EE2.3.30.0034" target="_blank" >EE2.3.30.0034: Podpora zkvalitnění týmů výzkumu a vývoje a rozvoj intersektorální mobility na ČVUT v Praze</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Applied Physics A: Materials Science and Processing

ISSN

0947-8396

e-ISSN

—

Svazek periodika

119

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

169-178

Kód UT WoS článku

000351171600022

EID výsledku v databázi Scopus

2-s2.0-84925487450