Study of molding billets of mixed suspensions based on lithium aluminosilicate and quartz glasses

Study of molding billets of mixed suspensions based on lithium aluminosilicate and quartz glasses It is shown that one way of synthesizing new composite materials for producing antenna fairings may be the method of molding billets from mixed suspensions of lithium aluminosilicate and quartz glasses followed by sintering to the required level of physicotechnical properties. These studies make it possible to isolate a region of SiO2 content (5–40%) within whose limits it is possible to prepare materials with quite high strength, i.e. from 75 to 120 MPa, and a broad spectrum of dielectric properties: a dielectric permittivity from 5.0 to 6.7, and a dielectric loss tangent from 0.009 to 0.007. It is established that the most uniform structure occurs for specimens molded from slips with a moderately fine SiO2 addition (5–7% content of 63–500 µm particles) that promotes the minimum amount of open porosity in billets. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Study of molding billets of mixed suspensions based on lithium aluminosilicate and quartz glasses

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Publisher
Springer Journals
Copyright
Copyright © 2008 by Springer Science+Business Media, Inc.
Subject
Materials Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Materials
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/s11148-009-9102-2
Publisher site
See Article on Publisher Site

Abstract

It is shown that one way of synthesizing new composite materials for producing antenna fairings may be the method of molding billets from mixed suspensions of lithium aluminosilicate and quartz glasses followed by sintering to the required level of physicotechnical properties. These studies make it possible to isolate a region of SiO2 content (5–40%) within whose limits it is possible to prepare materials with quite high strength, i.e. from 75 to 120 MPa, and a broad spectrum of dielectric properties: a dielectric permittivity from 5.0 to 6.7, and a dielectric loss tangent from 0.009 to 0.007. It is established that the most uniform structure occurs for specimens molded from slips with a moderately fine SiO2 addition (5–7% content of 63–500 µm particles) that promotes the minimum amount of open porosity in billets.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Feb 27, 2009

References

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