Effect of Reaction Atmosphere and Heating Rate during Reactive Sintering of Ni-Ti Intermetallics

Novák, P.; Kadlecová, B.; Salvetr, P.; Knaislová, A.; Školáková, A.; Karlík, M.; Kopeček, Jaromír

doi:https://dx.doi.org/10.1016/j.proeng.2017.04.139

Number of the records: 1

Effect of Reaction Atmosphere and Heating Rate during Reactive Sintering of Ni-Ti Intermetallics

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SYSNO ASEP	0509859
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Effect of Reaction Atmosphere and Heating Rate during Reactive Sintering of Ni-Ti Intermetallics
Author(s)	Novák, P. (CZ) Kadlecová, B. (CZ) Salvetr, P. (CZ) Knaislová, A. (CZ) Školáková, A. (CZ) Karlík, M. (CZ) Kopeček, Jaromír (FZU-D)_{RID, ORCID}
Number of authors	7
Source Title	Procedia Engineering, vol. 184, Advances in Material and Processing Technologies Conference. - Amsterdam : Elsevier Ltd., 2017 / Choudhury I. ; Metselaar H. ; BinYusoff N. - ISSN 1877-7058
Pages	s. 681-686
Number of pages	6 s.
Publication form	Online - E
Action	Advances in Material and Processing Technologies Conference (AMPT 2016)
Event date	08.11.2016 - 11.11.2016
VEvent location	Kuala Lumpur
Country	MY - Malaysia
Event type	WRD
Language	eng - English
Country	NL - Netherlands
Keywords	intermetallic compounds ; powder metallurgy ; electron microscopy ; microstructure ; thermal analysis ; thermogravimetry
Subject RIV	BM - Solid Matter Physics ; Magnetism
OECD category	Condensed matter physics (including formerly solid state physics, supercond.)
R&D Projects	GA14-03044S GA ČR - Czech Science Foundation (CSF)
Institutional support	FZU-D - RVO:68378271
UT WOS	000414778400082
EID SCOPUS	85020041700
DOI	10.1016/j.proeng.2017.04.139
Annotation	The effect of reaction atmosphere and heating rate during reactive sintering of nickel and titanium powder blend (Ni: 52 at.%, particle size <150 μm, >99.99% purity, Ti: 48 at.%, particle size <44 μm, >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 °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.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2020

Number of the records: 1