Study of properties of high-energy NdFeB permanent magnets

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F11%3A86080905" target="_blank" >RIV/61989100:27360/11:86080905 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Study of properties of high-energy NdFeB permanent magnets

Popis výsledku v původním jazyce

The paper deals with the study of properties of supplied high-energy NdFeB permanent magnets (type N35), equipped with Zn coating to improve their corrosion resistance. Metallographic analysis, the determination of grain size, phase identification usingSEM with EDX micro-analyser, measurements of magnetic characteristics and corrosion tests were conducted. Basic matrix phase Nd2Fe14B was identified in the structure of the sample, as well as Nd-rich phase, and structure showed considerable porosity. Furthermore, an oxidic phase Nd(R)0x and Nd(R)xOyFez were found on the grain boundaries and at the point of intersection of three grains. Grain size distribution of the matrix was determined using the software Analysis and it ranged between 10 to 25 m. Themeasured magnetic characteristics did not entirely correspond to the values indicated by the manufacturer, in particular magnetic product (BH max, which was approx. by 20% lower. Corrosion tests in neutral salt mist performed on five piec

Název v anglickém jazyce

Study of properties of high-energy NdFeB permanent magnets

Popis výsledku anglicky

The paper deals with the study of properties of supplied high-energy NdFeB permanent magnets (type N35), equipped with Zn coating to improve their corrosion resistance. Metallographic analysis, the determination of grain size, phase identification usingSEM with EDX micro-analyser, measurements of magnetic characteristics and corrosion tests were conducted. Basic matrix phase Nd2Fe14B was identified in the structure of the sample, as well as Nd-rich phase, and structure showed considerable porosity. Furthermore, an oxidic phase Nd(R)0x and Nd(R)xOyFez were found on the grain boundaries and at the point of intersection of three grains. Grain size distribution of the matrix was determined using the software Analysis and it ranged between 10 to 25 m. Themeasured magnetic characteristics did not entirely correspond to the values indicated by the manufacturer, in particular magnetic product (BH max, which was approx. by 20% lower. Corrosion tests in neutral salt mist performed on five piec

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/ED0040%2F01%2F01" target="_blank" >ED0040/01/01: Regionální materiálově technologické výzkumné centrum</a><br>

Návaznosti

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

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Hutnické listy

ISSN

0018-8069

e-ISSN

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Svazek periodika

64

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

52-58

Kód UT WoS článku

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EID výsledku v databázi Scopus

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