Published 1974 | Version v1
Book Metadata-only

Study of Y2O3-SiO2-Al2O3 system

Creators

  • 1. Gosudarstvennyj Nauchno-Issledovatel'skij i Proektnyj Inst. Redkometallicheskoj Promyshlennosti, Moscow (USSR)

Description

A method was developed for direct synthesis of fused samples of Y2O3, SiO2 and Al2O3 by radiation-induced melting of briquetted mixture of the oxides. A region was determined corresponding to glass formation in the Y2O3-SiO2-Al2O3 system. Optical measurements made in the range of wave lengths 0.3-6 micrometers for glasses containing (>=)40% by wt. Y2O3 revealed the following spectral characteristics: transmission 75-87%; refractive index nsub(D)=1.69-1.72; reflection factor 5-8%. For glasses having the composition Y2O3x2SiO2xAl2O3 and containing 52% by wt. Y2O3 with a density of 3.71 g/cm3 and microhardness 1000 kg/mm2, the softening temperature ranged from 1100 to 1600 deg C

Additional details

Additional titles

Original title (Russian)
Исследование системы Ы

Publishing Information

Publisher
GIREDMET.
Imprint Place
Moscow
Imprint Title
Proceedings of GIREDMET
Imprint Pagination
v. 52 p. 83-87.
Series
Issledovanie v oblasti razdeleniya redkozemel'nykh ehlementov.

INIS

Country of Publication
USSR
Country of Input or Organization
USSR
INIS RN
8317773
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ALUMINIUM OXIDES; CHEMICAL COMPOSITION; CHEMICAL PREPARATION; DENSITY; GLASS; OPTICAL PROPERTIES; QUANTITY RATIO; SILICON OXIDES; TEMPERATURE DEPENDENCE; TERNARY ALLOY SYSTEMS; VERY HIGH TEMPERATURE; YTTRIUM OXIDES
Descriptors DEC
ALLOY SYSTEMS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SILICON COMPOUNDS; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS

Optional Information

Notes
5 refs.; 3 figs. Imprint:Nauchnye trudy GIREDMETA.