Published March 2006 | Version v1
Journal article Metadata-only

The structure of nitride powders of the compound Sm2Fe17 obtained by gas baric method

Creators

  • 1. Moskovskij Gosudarstvennyj Inst. Stali i Splavov, Moscow (Russian Federation)

Description

Structural study of solid solutions produced by Sm2Fe17 nitridation under pressure is carried out. It is shown that the structure of the nitride includes two solid solutions with different nitrogen concentration: Sm2Fe17Nx and Sm2Fe17N3-δ. The internal part of a powder particle is occupied by the first composition and the external part - by the second one. The process of nitridation proceeds under pressure of 40-60 MPa and at temperatures of 400-460 deg C

Abstract (Russian)

Проведено структурное исследование твердых растворов, полученных азотированием соединения Sm2Fe17 под давлением. Показано, что структура нитрида состоит из двух твердых растворов с различной концентрацией азота: Sm2Fe17Nx и Sm2Fe17N3-δ. Внутренняя часть частицы порошка представляет собой твердый раствор первого состава, а внешний слой - твердый раствор второго состава. Процесс азотирования ведется под давлением 40-60 МПа и при температуре 400-460 град С

Additional details

Additional titles

Original title (Russian)
Структура порошков нитрида соединения См

Publishing Information

Journal Title
Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya
Journal Issue
no.3
Journal Page Range
p. 45-48
CODEN
IVUMAX

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
37064526
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CRYSTAL LATTICES; DIFFUSION; IRON NITRIDES; LATTICE PARAMETERS; NITRIDATION; PHASE STUDIES; POWDERS; PRESSURE RANGE MEGA PA 10-100; SAMARIUM NITRIDES; SOLID SOLUTIONS; TEMPERATURE RANGE 0400-1000 K
Descriptors DEC
CHEMICAL REACTIONS; CRYSTAL STRUCTURE; DISPERSIONS; HOMOGENEOUS MIXTURES; IRON COMPOUNDS; MIXTURES; NITRIDES; NITROGEN COMPOUNDS; PNICTIDES; PRESSURE RANGE; PRESSURE RANGE MEGA PA; RARE EARTH COMPOUNDS; SAMARIUM COMPOUNDS; SOLUTIONS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
10 refs., 4 figs., 1 tab.