Low temperature sintering of BaCu(B2O5)-added BaO-Re2O3-TiO2 (Re = Sm, Nd) ceramics

Min Han Kim, Jong Bong Lim, Sahn Nahm, Jong Hoo Paik, Hwack Joo Lee

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The sintering temperature of BaSm2Ti4O12 (BST) and BaNd2Ti5O14 (BNT) ceramics was approximately 1350 °C and decreased to 875 °C with the addition of BaCu(B2O5) (BCB) ceramic powder. The presence of the liquid phase was responsible for the decrease of the sintering temperature. The liquid phase is considered to have a composition similar to the BaO-deficient BCB. The bulk density and dielectric constant (εr) of the specimens increased and reached saturated value with increasing BCB content. The Q-value initially increased with the addition of BCB, but decreased considerably when a large amount of BCB was added, because of the presence of the liquid phase. Good microwave dielectric properties of Q × f = 4500 GHz, εr = 60 and τf = -30 ppm/°C were obtained for the 16.0 mol% BCB-added BST ceramics sintered at 875 °C for 2 h. Moreover, the BST and BNT ceramics containing BCB show good compatibility with silver metal.

Original languageEnglish
Pages (from-to)3033-3037
Number of pages5
JournalJournal of the European Ceramic Society
Volume27
Issue number8-9 SPEC. ISS.
DOIs
Publication statusPublished - 2007 Apr 2

Fingerprint

Sintering
Liquids
Silver
Dielectric properties
Powders
Temperature
Permittivity
Metals
Microwaves
Chemical analysis
boron oxide

Keywords

  • BaO-(Sm,Nd)O-TiO
  • Dielectric properties
  • Sintering

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Low temperature sintering of BaCu(B2O5)-added BaO-Re2O3-TiO2 (Re = Sm, Nd) ceramics. / Kim, Min Han; Lim, Jong Bong; Nahm, Sahn; Paik, Jong Hoo; Lee, Hwack Joo.

In: Journal of the European Ceramic Society, Vol. 27, No. 8-9 SPEC. ISS., 02.04.2007, p. 3033-3037.

Research output: Contribution to journalArticle

Kim, Min Han ; Lim, Jong Bong ; Nahm, Sahn ; Paik, Jong Hoo ; Lee, Hwack Joo. / Low temperature sintering of BaCu(B2O5)-added BaO-Re2O3-TiO2 (Re = Sm, Nd) ceramics. In: Journal of the European Ceramic Society. 2007 ; Vol. 27, No. 8-9 SPEC. ISS. pp. 3033-3037.
@article{df68b3922894433db3f904c94067a8e1,
title = "Low temperature sintering of BaCu(B2O5)-added BaO-Re2O3-TiO2 (Re = Sm, Nd) ceramics",
abstract = "The sintering temperature of BaSm2Ti4O12 (BST) and BaNd2Ti5O14 (BNT) ceramics was approximately 1350 °C and decreased to 875 °C with the addition of BaCu(B2O5) (BCB) ceramic powder. The presence of the liquid phase was responsible for the decrease of the sintering temperature. The liquid phase is considered to have a composition similar to the BaO-deficient BCB. The bulk density and dielectric constant (εr) of the specimens increased and reached saturated value with increasing BCB content. The Q-value initially increased with the addition of BCB, but decreased considerably when a large amount of BCB was added, because of the presence of the liquid phase. Good microwave dielectric properties of Q × f = 4500 GHz, εr = 60 and τf = -30 ppm/°C were obtained for the 16.0 mol{\%} BCB-added BST ceramics sintered at 875 °C for 2 h. Moreover, the BST and BNT ceramics containing BCB show good compatibility with silver metal.",
keywords = "BaO-(Sm,Nd)O-TiO, Dielectric properties, Sintering",
author = "Kim, {Min Han} and Lim, {Jong Bong} and Sahn Nahm and Paik, {Jong Hoo} and Lee, {Hwack Joo}",
year = "2007",
month = "4",
day = "2",
doi = "10.1016/j.jeurceramsoc.2006.11.061",
language = "English",
volume = "27",
pages = "3033--3037",
journal = "Journal of the European Ceramic Society",
issn = "0955-2219",
publisher = "Elsevier BV",
number = "8-9 SPEC. ISS.",

}

TY - JOUR

T1 - Low temperature sintering of BaCu(B2O5)-added BaO-Re2O3-TiO2 (Re = Sm, Nd) ceramics

AU - Kim, Min Han

AU - Lim, Jong Bong

AU - Nahm, Sahn

AU - Paik, Jong Hoo

AU - Lee, Hwack Joo

PY - 2007/4/2

Y1 - 2007/4/2

N2 - The sintering temperature of BaSm2Ti4O12 (BST) and BaNd2Ti5O14 (BNT) ceramics was approximately 1350 °C and decreased to 875 °C with the addition of BaCu(B2O5) (BCB) ceramic powder. The presence of the liquid phase was responsible for the decrease of the sintering temperature. The liquid phase is considered to have a composition similar to the BaO-deficient BCB. The bulk density and dielectric constant (εr) of the specimens increased and reached saturated value with increasing BCB content. The Q-value initially increased with the addition of BCB, but decreased considerably when a large amount of BCB was added, because of the presence of the liquid phase. Good microwave dielectric properties of Q × f = 4500 GHz, εr = 60 and τf = -30 ppm/°C were obtained for the 16.0 mol% BCB-added BST ceramics sintered at 875 °C for 2 h. Moreover, the BST and BNT ceramics containing BCB show good compatibility with silver metal.

AB - The sintering temperature of BaSm2Ti4O12 (BST) and BaNd2Ti5O14 (BNT) ceramics was approximately 1350 °C and decreased to 875 °C with the addition of BaCu(B2O5) (BCB) ceramic powder. The presence of the liquid phase was responsible for the decrease of the sintering temperature. The liquid phase is considered to have a composition similar to the BaO-deficient BCB. The bulk density and dielectric constant (εr) of the specimens increased and reached saturated value with increasing BCB content. The Q-value initially increased with the addition of BCB, but decreased considerably when a large amount of BCB was added, because of the presence of the liquid phase. Good microwave dielectric properties of Q × f = 4500 GHz, εr = 60 and τf = -30 ppm/°C were obtained for the 16.0 mol% BCB-added BST ceramics sintered at 875 °C for 2 h. Moreover, the BST and BNT ceramics containing BCB show good compatibility with silver metal.

KW - BaO-(Sm,Nd)O-TiO

KW - Dielectric properties

KW - Sintering

UR - http://www.scopus.com/inward/record.url?scp=33947667887&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33947667887&partnerID=8YFLogxK

U2 - 10.1016/j.jeurceramsoc.2006.11.061

DO - 10.1016/j.jeurceramsoc.2006.11.061

M3 - Article

VL - 27

SP - 3033

EP - 3037

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

SN - 0955-2219

IS - 8-9 SPEC. ISS.

ER -