PB(MG1 3NB2/3)O-3 CERAMICS PRODUCED BY MODIFIED 2-STAGE CALCINATION PROCESS/

Authors
LIOU YC WU L LIOU SS
Citation
Yc. Liou et al., PB(MG1 3NB2/3)O-3 CERAMICS PRODUCED BY MODIFIED 2-STAGE CALCINATION PROCESS/, JPN J A P 2, 33(9B), 1994, pp. 120001320-120001322
Citations number
11
Categorie Soggetti
Physics, Applied
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS → ACNP
Volume
33
Issue
9B
Year of publication
1994
Pages
120001320 - 120001322
Database
ISI
SICI code
Abstract
Pyrochlore-free lead magnesium niobate ceramics produced by a modified two-stage calcination process are studied. One calcination step of th e two-stage calcination process was omitted in this method. Without ca lcining, columbite MgNb2O6 and PbO were sintered directly to form pyro chlore-free and dense Pb(Mg1/3Nb2/3)O-3 ceramics. The grain size is ab out 6 mu m and the dielectric constant reaches 17000 at -9 degrees C u nder 1 kHz. An increase in sintering temperature resulted in an increa se in maximum dielectric constant.