The Effect of Technological Production Conditions on the Ability of AlN–Y2O3–С-Based Composite Materials to Absorb Microwave Radiation

New composite materials based on AlN–Y 2 O 3 –С have been created for use as absorbers of microwave radiation in vacuum electronics. X-ray diffraction and structural studies have shown that the major phases in the structure of the composites are AlN (hexagonal and cubic), Y 3 Al 5 O 12 , Al 3 O 4 ,...

Full description

Saved in:
Bibliographic Details
Published in:Journal of superhard materials 2020-03, Vol.42 (2), p.90-95
Main Authors: Serbenyuk, T. B., Prikhna, T. O., Sverdun, V. B., Sverdun, N. V., Chasnyk, V. I., Karpets’, M. V., Kovylyaev, V. V.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Composite materials
Microwave attenuation
Physical Chemistry
Properties
Structure
Synthesis
Yttrium oxide
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:New composite materials based on AlN–Y 2 O 3 –С have been created for use as absorbers of microwave radiation in vacuum electronics. X-ray diffraction and structural studies have shown that the major phases in the structure of the composites are AlN (hexagonal and cubic), Y 3 Al 5 O 12 , Al 3 O 4 , and С. An increase of time of component mixing and grinding influenced structure formation, promoted an increase in the content of the Al 3 O 4 phase, and led to enhancement of microwave radiation attenuation by the composites (from 6.5 to 7.6 dB), this being indicative of an increase in the absorption capacity of the ceramics obtained.
ISSN:1063-4576
1934-9408
DOI:10.3103/S1063457620020100