Effect of TiO 2 and SnO 2 on the microwave dielectric properties of Ba(Mg 1/3Ta 2/3)O 3 ceramics

Chang Hak Choi; Sahn Nahm; Yong Won Song; Jae Dong Byun; Young Sik Kim; Hwack Joo Lee; Hyun Min Park

Effect of TiO ₂ and SnO ₂ on the microwave dielectric properties of Ba(Mg _1/3Ta _2/3)O ₃ ceramics

Chang Hak Choi, Sahn Nahm, Yong Won Song, Jae Dong Byun, Young Sik Kim, Hwack Joo Lee, Hyun Min Park

Research output: Contribution to journal › Article › peer-review

Abstract

The effects of TiO ₂ and SnO ₂ additives on the sinterability and the microwave dielectric properties of Ba(Mg _1/3Ta _2/3)O ₃ (BMT) ceramics were investigated. X-ray diffraction and electron probe microanalysis results implied that Ti ⁺⁴ and Sn ⁺⁴ ions substituted for the Ta ⁺⁵ ions in BMT. The splitting of the (422) and (226) peaks was significantly reduced when the contents of the additives exceeded 1.0 mol%, indicating a decrease of 1 : 2 ordering. The grain size, the relative density, the dielectric constant and the Q-value of BMT increased with the addition of a small amount of TiO ₂ (or SnO ₂). However, a large addition of TiO ₂ or SnO ₂ reduced the relative density, the dielectric constant, and the Q-value of BMT. The temperature coefficient of the resonant frequency (TC _f) of BMT increased with the addition of TiO ₂ and decreased with the addition of SnO ₂. The following values were obtained with a 0.2 mol% TiO ₂ addition: ε _r=24.9, Q × f ₀≃100,000 (f _o = 8 GHz), and TC _f=8.7 ppm/°C.

Original language	English
Pages (from-to)	S410-S414
Journal	Journal of the Korean Physical Society
Volume	35
Issue number	SUPPL. 2
Publication status	Published - 1999

ASJC Scopus subject areas

General Physics and Astronomy

Cite this

@article{f5e3e2230cec4a3abc951d72181f5e03,

title = "Effect of TiO 2 and SnO 2 on the microwave dielectric properties of Ba(Mg 1/3Ta 2/3)O 3 ceramics",

abstract = "The effects of TiO 2 and SnO 2 additives on the sinterability and the microwave dielectric properties of Ba(Mg 1/3Ta 2/3)O 3 (BMT) ceramics were investigated. X-ray diffraction and electron probe microanalysis results implied that Ti +4 and Sn +4 ions substituted for the Ta +5 ions in BMT. The splitting of the (422) and (226) peaks was significantly reduced when the contents of the additives exceeded 1.0 mol%, indicating a decrease of 1 : 2 ordering. The grain size, the relative density, the dielectric constant and the Q-value of BMT increased with the addition of a small amount of TiO 2 (or SnO 2). However, a large addition of TiO 2 or SnO 2 reduced the relative density, the dielectric constant, and the Q-value of BMT. The temperature coefficient of the resonant frequency (TC f) of BMT increased with the addition of TiO 2 and decreased with the addition of SnO 2. The following values were obtained with a 0.2 mol% TiO 2 addition: ε r=24.9, Q × f 0≃100,000 (f o = 8 GHz), and TC f=8.7 ppm/°C.",

author = "Choi, {Chang Hak} and Sahn Nahm and Song, {Yong Won} and Byun, {Jae Dong} and Kim, {Young Sik} and Lee, {Hwack Joo} and Park, {Hyun Min}",

year = "1999",

language = "English",

volume = "35",

pages = "S410--S414",

journal = "Journal of the Korean Physical Society",

issn = "0374-4884",

publisher = "Korean Physical Society",

number = "SUPPL. 2",

}

TY - JOUR

T1 - Effect of TiO 2 and SnO 2 on the microwave dielectric properties of Ba(Mg 1/3Ta 2/3)O 3 ceramics

AU - Choi, Chang Hak

AU - Nahm, Sahn

AU - Song, Yong Won

AU - Byun, Jae Dong

AU - Kim, Young Sik

AU - Lee, Hwack Joo

AU - Park, Hyun Min

PY - 1999

Y1 - 1999

N2 - The effects of TiO 2 and SnO 2 additives on the sinterability and the microwave dielectric properties of Ba(Mg 1/3Ta 2/3)O 3 (BMT) ceramics were investigated. X-ray diffraction and electron probe microanalysis results implied that Ti +4 and Sn +4 ions substituted for the Ta +5 ions in BMT. The splitting of the (422) and (226) peaks was significantly reduced when the contents of the additives exceeded 1.0 mol%, indicating a decrease of 1 : 2 ordering. The grain size, the relative density, the dielectric constant and the Q-value of BMT increased with the addition of a small amount of TiO 2 (or SnO 2). However, a large addition of TiO 2 or SnO 2 reduced the relative density, the dielectric constant, and the Q-value of BMT. The temperature coefficient of the resonant frequency (TC f) of BMT increased with the addition of TiO 2 and decreased with the addition of SnO 2. The following values were obtained with a 0.2 mol% TiO 2 addition: ε r=24.9, Q × f 0≃100,000 (f o = 8 GHz), and TC f=8.7 ppm/°C.

AB - The effects of TiO 2 and SnO 2 additives on the sinterability and the microwave dielectric properties of Ba(Mg 1/3Ta 2/3)O 3 (BMT) ceramics were investigated. X-ray diffraction and electron probe microanalysis results implied that Ti +4 and Sn +4 ions substituted for the Ta +5 ions in BMT. The splitting of the (422) and (226) peaks was significantly reduced when the contents of the additives exceeded 1.0 mol%, indicating a decrease of 1 : 2 ordering. The grain size, the relative density, the dielectric constant and the Q-value of BMT increased with the addition of a small amount of TiO 2 (or SnO 2). However, a large addition of TiO 2 or SnO 2 reduced the relative density, the dielectric constant, and the Q-value of BMT. The temperature coefficient of the resonant frequency (TC f) of BMT increased with the addition of TiO 2 and decreased with the addition of SnO 2. The following values were obtained with a 0.2 mol% TiO 2 addition: ε r=24.9, Q × f 0≃100,000 (f o = 8 GHz), and TC f=8.7 ppm/°C.

UR - http://www.scopus.com/inward/record.url?scp=0033439858&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033439858&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0033439858

SN - 0374-4884

VL - 35

SP - S410-S414

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - SUPPL. 2

ER -

Effect of TiO ₂ and SnO ₂ on the microwave dielectric properties of Ba(Mg _1/3Ta _2/3)O ₃ ceramics

Abstract

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this