NiAl INTERMETALLIC PREPARED WITH REACTIVE SINTERING AND SUBSEQUENT POWDER-METALLURGICAL PLASMA-SINTERING COMPACTION

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F16%3A43902467" target="_blank" >RIV/60461373:22310/16:43902467 - isvavai.cz</a>
Alternative codes found
RIV/61389021:_____/16:00463405
Result on the web
<a href="http://dx.doi.org/10.17222/mit.2015.089" target="_blank" >http://dx.doi.org/10.17222/mit.2015.089</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17222/mit.2015.089" target="_blank" >10.17222/mit.2015.089</a>

Result language
angličtina
Original language name
NiAl INTERMETALLIC PREPARED WITH REACTIVE SINTERING AND SUBSEQUENT POWDER-METALLURGICAL PLASMA-SINTERING COMPACTION
Original language description
This paper proposes a novel method for powder-metallurgy preparation of compact NiAl intermetallics. In the first step, the NiAl powder is prepared with the reactive-sintering procedure. The porous NiAl product of the SHS reaction is milled to a fine powder and consequently compacted by SPS processing. The compaction of powder metals and alloys is a very difficult field due to the need of preserving the unique properties of the initial materials. One of the few possible methods of a successful compaction is plasma sintering. To describe detailed structures of powder-metallurgy materials, it is necessary to use advanced microscopy methods such as SEM and TEM. In this study, the structure of a NiAl intermetallic compound is described. The material was first produced, with reactive sintering, from pure elements. Subsequently, the NiAl porous master alloy was milled and compacted with the spark-plasma-sintering (SPS) technique. The particle size of the NiAl powder was comparable to the grain size of the compacted material, which exhibited a low porosity. It was proved that the interconnection of the NiAl particles is made by a thin layer of nanocrystalline oxides.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Project
<a href="/en/project/GBP108%2F12%2FG043" target="_blank" >GBP108/12/G043: Interface controlled properties of micro/nanocrystalline materials for advanced structural applications, biodegradable implants and hydrogen storage</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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