Low Dielectric Loss Ceramics of AlN Fine and Nanopowders View Full Text


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Article Info

DATE

2002-11

AUTHORS

Igor P. Fesenko, Maya A. Kuzenkova

ABSTRACT

The dielectric properties of ceramics pressurelessly sintered from nano (10-100 nm) and fine (0.8-1.0 μm) aluminum nitride powders have been studied. High-purity aluminum nitride sintered from nanopowder of nearly-theoretical density has been found to exhibit a low dielectric constant ε = 6.3 and low loss, tgδ = 0.011 at 3.32 GHz. Ceramics sintered from a fine aluminum nitride powder doped with yttrium oxide have revealed ε = 7.7 and tgδ = 0.021 at 3.23 GHz. The dielectric properties have allowed us to use ceramics sintered from fine aluminum nitride powder as a material for microwave windows for the diagnosis and treatment of tumors of the larynx and breast. More... »

PAGES

567-569

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/a:1022971901062

DOI

http://dx.doi.org/10.1023/a:1022971901062

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1047632531


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