Structural and phase composition modification of nanocrystalline Nd14Fe79B7 allloy during thermomagnetic measurements

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F09%3A00339981" target="_blank" >RIV/68081723:_____/09:00339981 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Structural and phase composition modification of nanocrystalline Nd14Fe79B7 allloy during thermomagnetic measurements

Original language description

Changes in the microstructure phase composition and magnetic properties of rapid quenched Nd-rich Nd14Fe79B7 alloy as caused by thermomagnetic measurement (TM) were studied using XRD methods of phase analysis, crystallite size and lattice microstrain determination. The changes were analysed between the optimized magnetic state and state after TM up to 800 degrees C. Measurement of magnetic properties was on the SQUID magnetometer at ambient temperature. The obtained experimental results show that the investigated alloy in the optimized magnetic state has nearly monophase composition with predominant content of hard magnetic Nd2Fe14B phase (up to 95 mass %) with mean crystallite size below 60 nm. In the state after TM, it was found that the decreased amount of Nd2Fe14B phase (75 mass %), increased amount of soft magnetic phases, predominantly of Fe7Nd5, formation of Nd-rich oxide Nd2O3 phase, as well as grain growth have caused the observed quality loss of hard magnetic properties.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/1M0512" target="_blank" >1M0512: Research center of powdered nanomaterials</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Name of the periodical

Journal of Mining and Metallurgy

ISSN

1450-5339

e-ISSN

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Volume of the periodical

45

Issue of the periodical within the volume

1

Country of publishing house

SR - SURINAME

Number of pages

9

Pages from-to

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UT code for WoS article

000273016600012

EID of the result in the Scopus database

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