Title :
Acoustic resonance spectroscopy of nanoceramics
Author :
Polzikova, N.I. ; Mansfeld, G.D. ; Alekseev, S.G. ; Kotelyanskii, I.M. ; Sergeev, F.O.
Author_Institution :
Inst. of Radioengineering & Electron., RAS, Moscow
Abstract :
Using resonance acoustic spectroscopy method frequency dependencies of acoustic losses in a dense yttrium aluminum garnet (YAG) nanoceramics prepared by the method of nanopowder sintering were studied in the range from 0.3 to 4 GHz. For the acoustic losses in the best available nanoceramics quadratic frequency dependence was experimentally obtained. The best Q-factor of our resonators based on ceramics equals to 20000 on the frequency 1 GHz. Thus the first results obtained show that YAG nanoceramics is promising material for microwave acoustoelectronic devices.
Keywords :
acoustic resonance; acoustic variables measurement; acoustoelectric devices; ceramics; microwave devices; nanoparticles; sintering; yttrium compounds; YAG; acoustic loss measurement; acoustic resonance spectroscopy; dense yttrium aluminum garnet; frequency 0.3 GHz to 4 GHz; microwave acoustoelectronic device; nanoceramic preparation; nanopowder sintering method; quadratic frequency dependency; Acoustic devices; Aluminum; Ceramics; Frequency dependence; Garnets; Nanostructured materials; Q factor; Resonance; Spectroscopy; Yttrium; acoustic losses; nanoceramic; resonance; yttrium aluminum garnet;
Conference_Titel :
Ultrasonics Symposium, 2008. IUS 2008. IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2428-3
Electronic_ISBN :
978-1-4244-2480-1
DOI :
10.1109/ULTSYM.2008.0537
