Effect of carbon on interstitial ordering and magnetic properties of epsilon-Fe-2(N,C)(1-z)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F17%3A00473572" target="_blank" >RIV/61389005:_____/17:00473572 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.jallcom.2016.09.317" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2016.09.317</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2016.09.317" target="_blank" >10.1016/j.jallcom.2016.09.317</a>

Result language

angličtina

Original language name

Effect of carbon on interstitial ordering and magnetic properties of epsilon-Fe-2(N,C)(1-z)

Original language description

Hexagonal epsilon-iron nitride and e-iron carbonitride phases are formed on nitriding and nitrocarburizing of iron and steel surfaces and can exist in broad compositional ranges. Long-range nitrogen ordering and magnetic properties for epsilon-iron nitrides and their dependence on composition have been the focus of several studies. So far, limited attention has been paid to the carbonitrides. In the current work, the effects of substitution of nitrogen by carbon on the interstitial ordering and magnetic properties in Fe-2(C,N)(1-z) are explored using neutron diffraction, Mossbauer spectroscopy and vibrating sample magnetometry. Neutron diffraction patterns showed 001 and 301 superstructure reflections, confirming a previously proposed structural model in space group P (3) over bar1 m (compared to P6(3)22 for the pure nitrides). On partial substitution of nitrogen by carbon in epsilon-iron nitride the Curie temperature, the saturation magnetization and the hyperfine fields of the iron atoms are increased, while isomer shifts are decreased. The effects on the a and c lattice parameters indicate a change in interstitial ordering, which is related to more favorable interactions between a nitrogen and carbon atom than among nitrogen atoms. This interaction leads to additional interstitial (short-range) ordering and a decrease in the c lattice parameter, while the a lattice parameter is largely unaffected.

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

—

OECD FORD branch

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

Project

<a href="/en/project/LM2015056" target="_blank" >LM2015056: Center of Accelerators and Nuclear Analytical Methods</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

—

Volume of the periodical

694

Issue of the periodical within the volume

FEB

Country of publishing house

CH - SWITZERLAND

Number of pages

10

Pages from-to

282-291

UT code for WoS article

000390622900040

EID of the result in the Scopus database

2-s2.0-84991474914