Low-temperature sintering and microwave dielectric properties of ZnTiO sub(3)-based LTCC materials

The low-temperature sintered microwave dielectric ceramics with composition of ZnTiO sub(3)-0.25TiO sub(2) were prepared by adding a small amount of low-melting compounds CuO-V sub(2)O sub(5)-Bi sub(2)O sub(3) (CVB). The phase relationship and dielectric properties as a function of sintering tempera...

Full description

Saved in:
Bibliographic Details
Published in:Journal of electroceramics 2008-12, Vol.21 (1-4), p.141-144
Main Authors: Yue, Zhenxing, Yan, Jing, Zhao, Fei, Gui, Zhilun, Li, Longtu
Format: Article
Language:English
Subjects:
CERAMICS
COPPER OXIDE
Densification
Dielectric properties
Dielectrics
ELECTRICAL PROPERTIES
INSULATION (ELECTRICAL)
Liquid phase sintering
MICROWAVES
Phase relationships
PROPERTIES
SINTERING
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The low-temperature sintered microwave dielectric ceramics with composition of ZnTiO sub(3)-0.25TiO sub(2) were prepared by adding a small amount of low-melting compounds CuO-V sub(2)O sub(5)-Bi sub(2)O sub(3) (CVB). The phase relationship and dielectric properties as a function of sintering temperature and the additional amount were studied. It is demonstrated that the addition of low-melting CVB can suppress the formation of Zn sub(2)TiO sub(4) at low temperature, but decrease the decomposition temperature of ZnTiO sub(3). The sintering temperature has a significant effect on the stability of ZnTiO sub(3) and dielectric properties of sintered ceramics. CVB addition can promote the densification of ceramics through liquid-phase sintering. The dense 2wt% CVB-doped ZnTiO sub(3)-0.25TiO sub(2) ceramics prepared at 850 degree C have excellent dielectric properties of =30, Qf=32,000 GHz, and tau sub(f)=+12 ppm/ degree C.
ISSN:1385-3449
1573-8663
DOI:10.1007/s10832-007-9096-4