Publication Date:
2018-01-03
Description:
Al/Nb co–doped SrTiO 3 microwave ceramics with the composition of SrTi 1–x (Al 0.5 Nb 0.5 ) x O 3 (x = 0.03, 0.05, 0.1 and 0.15) have been synthesized via a standard solid–state reaction method. The substitution of (Al 0.5 Nb 0.5 ) 4+ in B–site inhibits the reduction of Ti 4+ ions and the growth of grain size, then the transport of mobile charge carriers is limited, and thus the Q value is improved. For the SrTi 0.9 (Al 0.5 Nb 0.5 ) 0.1 O 3 ceramics, in addition to their high dielectric constant (ε r ~185), they exhibit correspondingly a high Qf value (~ 9077 GHz) at 2.9 GHz, making the microwave ceramics suitable for myriad device miniaturization and high performance wireless communication. This article is protected by copyright. All rights reserved.
Print ISSN:
0002-7820
Electronic ISSN:
1551-2916
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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