Effect of Reaction Atmosphere and Heating Rate during Reactive
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43915401" target="_blank" >RIV/60461373:22310/17:43915401 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.proeng.2017.04.139" target="_blank" >http://dx.doi.org/10.1016/j.proeng.2017.04.139</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.proeng.2017.04.139" target="_blank" >10.1016/j.proeng.2017.04.139</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Effect of Reaction Atmosphere and Heating Rate during Reactive
Popis výsledku v původním jazyce
The effect of reaction atmosphere and heating rate during reactive sintering of nickel and titanium powder blend (Ni: 52 at.%, particle size <150 mu m, >99.99% purity, Ti: 48 at.%, particle size <44 mu m, >99.5% purity) were studied. The powder mixtures were uniaxially compressed under pressure of 637 MPa and sintered at temperatures 500, 650, 900 and 1100 degrees C in air, vacuum, argon and nitrogen atmospheres. Two heating rates were applied: 200 and >300 K.min(-1). The results show that a significant effect of reaction atmosphere in terms of the quantity of the Ti2Ni phase applies especially at very high heating rate. In terms of phase morphology, oxygen causes refinement of the structure, regardless of heating rate. Mechanism and kinetics of the reactions leading to NiTi phases were determined by DTA and thermogravimetry. It was found that the Ti2Ni phase forms already at 500 degrees C. At 650 degrees C this phase undergoes a reaction with nickel to NiTi and Ni3Ti.
Název v anglickém jazyce
Effect of Reaction Atmosphere and Heating Rate during Reactive
Popis výsledku anglicky
The effect of reaction atmosphere and heating rate during reactive sintering of nickel and titanium powder blend (Ni: 52 at.%, particle size <150 mu m, >99.99% purity, Ti: 48 at.%, particle size <44 mu m, >99.5% purity) were studied. The powder mixtures were uniaxially compressed under pressure of 637 MPa and sintered at temperatures 500, 650, 900 and 1100 degrees C in air, vacuum, argon and nitrogen atmospheres. Two heating rates were applied: 200 and >300 K.min(-1). The results show that a significant effect of reaction atmosphere in terms of the quantity of the Ti2Ni phase applies especially at very high heating rate. In terms of phase morphology, oxygen causes refinement of the structure, regardless of heating rate. Mechanism and kinetics of the reactions leading to NiTi phases were determined by DTA and thermogravimetry. It was found that the Ti2Ni phase forms already at 500 degrees C. At 650 degrees C this phase undergoes a reaction with nickel to NiTi and Ni3Ti.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20501 - Materials engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/GA14-03044S" target="_blank" >GA14-03044S: Příprava slitin NiTi s tvarovou pamětí reaktivní sintrací</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
Procedia Engineering
ISBN
—
ISSN
1877-7058
e-ISSN
neuvedeno
Počet stran výsledku
6
Strana od-do
681-686
Název nakladatele
Elsevier B.V.
Místo vydání
Brusel
Místo konání akce
Kuala Lumpur
Datum konání akce
8. 11. 2016
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
000414778400082