Published June 1999 | Version v1
Journal article Metadata-only

X-ray structural investigation of cobalt-chromium-yttrium aluminium-base compound

Creators

  • 1. Inst. Metallurgii UrO RAN, Ekaterinburg (Russian Federation)

Description

Alloy YAl8(Co, Cr)3.6 was produced by melting chromium, cobalt, aluminium and yttrium in electric-arc vacuum furnace in helium atmosphere by three-stage remelting at 1550-1625 deg C and homogenizing annealing in vacuum at 1000-1100 deg C. By the X-ray differential analysis it has been ascertained that the alloy has ThMn12 type structure (a = 8.909 (1), c 5.097 (1)A), whereas yttrium atoms occupy 2(1) positions, aluminium atoms - 8(i) and 8(j) positions, transition metals are located in 8(f) position

Abstract (Russian)

Сплав YAl8(Co, Cr)3.6 получен сплавлением хрома, кобальта, алюминия и иттрия в электродуговой вакуумной печи в атмосфере гелия путем трехкратного переплава при 1550-1625 град. С и гомогенезирующего отжига в вакууме при 1000-1100 град. С. Методом рентгеноструктурного анализа сплав имеет структуру типа ThMn12 (a = 8,909 (1), c = 5,097 (1)A), при этом атомы иттрия занимают позиции 2(а), атомы алюминия -8(i) и 8(j), а атомы переходных металлов располагаются в позиции 8(f)

Additional details

Additional titles

Original title (Russian)
Рентгеноструктурные исследования хром-кобальт-иттриевого алюминида

Publishing Information

Journal Title
Doklady Akademii Nauk - Rossijskaya Akademiya Nauk
Journal Volume
366
Journal Issue
4
Journal Page Range
p. 490-492
ISSN
0869-5652
CODEN
DAKNEQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
32042355
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALUMINIUM BASE ALLOYS; CHEMICAL COMPOSITION; CHEMICAL PREPARATION; CHROMIUM ALLOYS; COBALT ALLOYS; CRYSTAL LATTICES; INTERMETALLIC COMPOUNDS; LATTICE PARAMETERS; X-RAY DIFFRACTION; YTTRIUM ALLOYS
Descriptors DEC
ALLOYS; ALUMINIUM ALLOYS; COHERENT SCATTERING; CRYSTAL STRUCTURE; DIFFRACTION; SCATTERING; SYNTHESIS; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
5 refs.; 2 tabs.