Effect of Reaction Atmosphere and Heating Rate during Reactive
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Effect of Reaction Atmosphere and Heating Rate during Reactive
Original language description
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.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GA14-03044S" target="_blank" >GA14-03044S: Preparation of NiTi shape memory alloys by reactive sintering</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Procedia Engineering
ISBN
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ISSN
1877-7058
e-ISSN
neuvedeno
Number of pages
6
Pages from-to
681-686
Publisher name
Elsevier B.V.
Place of publication
Brusel
Event location
Kuala Lumpur
Event date
Nov 8, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000414778400082