You are not logged in Total: 7journals, 20,034articles Online
AccountAccount
Login / Register
Forgot Login?
 
Main menuMain menu
What's new
Journal list
Visiting ranking
Phrase ranking
Polls
About us
 
SearchSearch
 
Journal Site
Advanced Search
 

Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.117  No.1365 (May) (2009)  >  pp.675-679

Journal of the Ceramic Society of Japan
<<Previous article Vol.117  No.1365 (May) (2009)   pp.675 - 679 Next article>>

Effect of glass powders with spherical shape and fine size on the sintering behavior and dielectric properties of BaTiO3 ceramics

Dae Soo JUNG1), You Na KO1), Jang Heui YI1), Seung Kwon HONG1) and Yun Chan KANG1)
1) Department of Chemical Engineering, Konkuk University

  In this study, it was found that BaO-B2O3-SiO2 glass powders with fine particle sizes and spherical shapes improved the sintering characteristics of nanosized BaTiO3 powders. The mean sizes of the prepared glass powders and BaTiO3 powders were 940 nm and 110 nm, respectively. The densities of BaTiO3 pellets containing 0, 1, 3, and 5 mass% of a glass additive were 4.2, 5.2, 5.5 and 5.7 gcm-3, respectively, at a sintering temperature of 900°C. The densities of BaTiO3 pellets sintered at 900°C and containing 5 mass% of the glass additive were similar to that of the pellet sintered at 1280°C and containing no glass additive. Dielectric constants of pellets containing 5 mass% of the glass additive and of pellets containing no glass additive were 1599 and 469, respectively, at a sintering temperature of 900°C. Dielectric constants of pellets containing 1 mass% of the glass additive increased from 602 to 4109 when the sintering temperature was increased from 800 to 1200°C.


Keyword:
Barium titanate, Glass powder, Spray pyrolysis, Dielectric material

Received: October 14, 2008
Accepted: February 19, 2009 , Published online: May 01, 2009
Copyright (c) 2009 The Ceramic Society of Japan

PDFPDF file (J-STAGE)J-STAGEJ-STAGE


SPARC Japan

Terms of Use | Privacy Policy