Published July 1999 | Version v1
Journal article Metadata-only

Factors which provide stability of metal-oxide composites to electron bombardment in vacuum

Creators

Description

Secondary emission parameters are investigated in composite material specimens prepared by impregnation of a sintered tungsten matrix with a mixture of barium alumoberyllate (xBaO·yBeO·zAl2O3). The specimens are irradiated by a primary electron beam 1.0-3.0 m in diameter with primary current of 100 m A and electron energy of 1500 eV. The best emission properties are revealed in spe cimens for which preparation the tungsten powder subjected to high temperature annealing and mixing is used. Such specimens exhibit good reproducibility of emission parameters and high stability under electron bombardment in vacuum

Additional details

Additional titles

Original title (Russian)
Факторы, обеспечивающие устойчивост' металл-оксидных композиций к электронной бомбардировке в вакууме

Publishing Information

Journal Title
Metally (Moscow)
Journal Issue
no.4
Journal Page Range
p. 92-97
ISSN
0869-5733
CODEN
MEALET

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
31005150
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALUMINIUM OXIDES; BARIUM OXIDES; BERYLLIUM OXIDES; COMPOSITE MATERIALS; ELECTRON BEAMS; ELECTRON EMISSION; IMPREGNATION; KEV RANGE 01-10; PARTICLE SIZE; PHYSICAL RADIATION EFFECTS; POWDERS; SECONDARY EMISSION; SURFACES; TUNGSTEN; WORK FUNCTIONS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; BARIUM COMPOUNDS; BEAMS; BERYLLIUM COMPOUNDS; CHALCOGENIDES; ELEMENTS; EMISSION; ENERGY RANGE; KEV RANGE; LEPTON BEAMS; MATERIALS; METALS; OXIDES; OXYGEN COMPOUNDS; PARTICLE BEAMS; RADIATION EFFECTS; SIZE; TRANSITION ELEMENTS

Optional Information

Notes
13 refs., 1 fig., 4 tabs.