Structural characterization of semi-heusler/light metal composites prepared by spark plasma sintering

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10389233" target="_blank" >RIV/00216208:11320/18:10389233 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/18:00501168 RIV/61389021:_____/18:00501168 RIV/61389005:_____/18:00501168 RIV/61388998:_____/18:00501168

Result on the web

<a href="https://doi.org/10.1038/s41598-018-29479-3" target="_blank" >https://doi.org/10.1038/s41598-018-29479-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-018-29479-3" target="_blank" >10.1038/s41598-018-29479-3</a>

Result language

angličtina

Original language name

Structural characterization of semi-heusler/light metal composites prepared by spark plasma sintering

Original language description

A composite of powders of semi-Heusler ferromagnetic shape memory and pure titanium was successfully prepared by spark plasma sintering at the temperature of 950 degrees C. Sintering resulted in the formation of small precipitates and intermetallic phases at the heterogeneous interfaces. Various complementary experimental methods were used to fully characterize the microstructure. Imaging methods including transmission and scanning electron microscopy with energy dispersive X-ray spectroscopy revealed a position and chemical composition of individual intermetallic phases and precipitates. The crystalline structure of the phases was examined by a joint refinement of X-ray and neutron diffraction patterns. It was found that Co38Ni33Al29 decomposes into the B2-(Co, Ni)Al matrix and A1-(Co, Ni, Al) particles during sintering, while Al, Co and Ni diffuse into Ti forming an eutectic two phase structure with C9-Ti-2(Co, Ni) precipitates. Complicated interface intermetallic structure containing C9-Ti-2(Co, Ni), B2-(Co, Ni) Ti and L2(1)-(Co, Ni)(Al, Ti) was completely revealed. In addition, C9-Ti-2(Co, Ni) and A1-(Co, Ni, Al) precipitates were investigated by an advanced method of small angle neutron scattering. This study proves that powder metallurgy followed by spark plasma sintering is an appropriate technique to prepare bulk composites from very dissimilar materials.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2018

Confidentiality

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

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

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Volume of the periodical

8

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

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UT code for WoS article

000439550200005

EID of the result in the Scopus database

2-s2.0-85050639948