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Low temperature cofirable Li sub(2)Zn sub(3)Ti sub(4)O sub(12) microwave dielectric ceramic with Li sub(2)O-ZnO-B sub(2)O sub(3) glass additive

Journal of materials science. Materials in electronics, 2014-01, Vol.25 (1), p.355-360 [Peer Reviewed Journal]

ISSN: 0957-4522 ;EISSN: 1573-482X ;DOI: 10.1007/s10854-013-1594-3

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  • Title:
    Low temperature cofirable Li sub(2)Zn sub(3)Ti sub(4)O sub(12) microwave dielectric ceramic with Li sub(2)O-ZnO-B sub(2)O sub(3) glass additive
  • Author: Sayyadi-Shahraki, A ; Taheri-Nassaj, E ; Hassanzadeh-Tabrizi, SA ; Barzegar-Bafrooei, H
  • Subjects: Additives
  • Is Part Of: Journal of materials science. Materials in electronics, 2014-01, Vol.25 (1), p.355-360
  • Description: The effects of Li sub(2)O-ZnO-B sub(2)O sub(3) (LZB) glass additive on the sintering behavior, phase composition, microstructure and microwave dielectric properties of Li sub(2)Zn sub(3)Ti sub(4)O sub(12) ceramics were investigated. The addition of a small amount of LZB glass can reduce the sintering temperature of Li sub(2)Zn sub(3)Ti sub(4)O sub(12) ceramics from 1,075 to 900 degree C without much degradation of the microwave dielectric properties. Only a single-phase Li sub(2)Zn sub(3)Ti sub(4)O sub(12) is formed in Li sub(2)Zn sub(3)Ti sub(4)O sub(12) ceramic with LZB addition. Typically, the 1.5 wt% LZB glass-added Li sub(2)Zn sub(3)Ti sub(4)O sub(12) ceramic sintered at 900 degree C for 2 h can reach a high relative density of 97.5 % and exhibits good microwave dielectric properties, i.e., relative dielectric constant ( epsilon sub( )r = 19.1, quality factor (Q) = 7083.5 at 9 GHz, and temperature coefficient of resonant frequency ( tau sub( )f = - 48.9 ppm/ degree C. In addition, the ceramic could be co-fired well with an Ag electrode, which is made it as a promising dielectric ceramic for low temperature co-fired ceramics technology application.
  • Language: English
  • Identifier: ISSN: 0957-4522
    EISSN: 1573-482X
    DOI: 10.1007/s10854-013-1594-3
  • Source: AUTh Library subscriptions: ProQuest Central
    Alma/SFX Local Collection
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