Roles of Ba/Ti ratio on the crystal structure and microstructure of barium titanate powders

C. Y. Chang; M. T. Tu; C. Y. Su; R. L. Wang; Chi-Yuen Huang

Roles of Ba/Ti ratio on the crystal structure and microstructure of barium titanate powders

C. Y. Chang, M. T. Tu, C. Y. Su, R. L. Wang, Chi-Yuen Huang

資源工程學系

研究成果: Conference contribution

摘要

The effect of Ba/Ti ratio on crystal structure and microstructure was studied using XRF, Raman spectra, XRD, SEM, and TEM. A series of BaTiO ₃ powders were synthesized from high purity BaCO₃ and TiO₂ powders with Ba/Ti ratio ranging from 0.92 to 1.08 at 1200°C calcination temperature for 4 h. The XRF results confirm the Ba/Ti ratio of these synthesized BaTiO₃ powders is ranging from 0.98 to 1.02. The Raman spectra demonstrate that the BaTiO₃ powders are tetragonal phase and without second phase. The XRD data show a significant change in tetragonality (c/a ratio) with Ba/Ti ratio from 0.99̃0.98. The Ti-excess samples exhibit a higher tetragonality (c/a ratio = 1.0109) than that in Ba-excess samples (c/a ratio = 1.0097).

原文	English
主出版物標題	Materials Science and Technology Conference and Exhibition MS and T'08
頁面	102-111
頁數	10
出版狀態	Published - 2008 12月 1
事件	Materials Science and Technology Conference and Exhibition, MS and T'08 - Pittsburgh, PA, United States 持續時間: 2008 10月 5 → 2008 10月 9

出版系列

名字	Materials Science and Technology Conference and Exhibition, MS and T'08
卷	1

Other

Other	Materials Science and Technology Conference and Exhibition, MS and T'08
國家/地區	United States
城市	Pittsburgh, PA
期間	08-10-05 → 08-10-09

All Science Journal Classification (ASJC) codes

一般材料科學
材料力學

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title = "Roles of Ba/Ti ratio on the crystal structure and microstructure of barium titanate powders",

abstract = "The effect of Ba/Ti ratio on crystal structure and microstructure was studied using XRF, Raman spectra, XRD, SEM, and TEM. A series of BaTiO 3 powders were synthesized from high purity BaCO3 and TiO2 powders with Ba/Ti ratio ranging from 0.92 to 1.08 at 1200°C calcination temperature for 4 h. The XRF results confirm the Ba/Ti ratio of these synthesized BaTiO3 powders is ranging from 0.98 to 1.02. The Raman spectra demonstrate that the BaTiO3 powders are tetragonal phase and without second phase. The XRD data show a significant change in tetragonality (c/a ratio) with Ba/Ti ratio from 0.9{\~9}0.98. The Ti-excess samples exhibit a higher tetragonality (c/a ratio = 1.0109) than that in Ba-excess samples (c/a ratio = 1.0097).",

author = "Chang, {C. Y.} and Tu, {M. T.} and Su, {C. Y.} and Wang, {R. L.} and Chi-Yuen Huang",

year = "2008",

month = dec,

day = "1",

language = "English",

isbn = "9781605606217",

series = "Materials Science and Technology Conference and Exhibition, MS and T'08",

pages = "102--111",

booktitle = "Materials Science and Technology Conference and Exhibition MS and T'08",

note = "Materials Science and Technology Conference and Exhibition, MS and T'08 ; Conference date: 05-10-2008 Through 09-10-2008",

}

Chang, CY, Tu, MT, Su, CY, Wang, RL & Huang, C-Y 2008, Roles of Ba/Ti ratio on the crystal structure and microstructure of barium titanate powders. 於 Materials Science and Technology Conference and Exhibition MS and T'08. Materials Science and Technology Conference and Exhibition, MS and T'08, 卷 1, 頁 102-111, Materials Science and Technology Conference and Exhibition, MS and T'08, Pittsburgh, PA, United States, 08-10-05.

TY - GEN

T1 - Roles of Ba/Ti ratio on the crystal structure and microstructure of barium titanate powders

AU - Chang, C. Y.

AU - Tu, M. T.

AU - Su, C. Y.

AU - Wang, R. L.

AU - Huang, Chi-Yuen

PY - 2008/12/1

Y1 - 2008/12/1

N2 - The effect of Ba/Ti ratio on crystal structure and microstructure was studied using XRF, Raman spectra, XRD, SEM, and TEM. A series of BaTiO 3 powders were synthesized from high purity BaCO3 and TiO2 powders with Ba/Ti ratio ranging from 0.92 to 1.08 at 1200°C calcination temperature for 4 h. The XRF results confirm the Ba/Ti ratio of these synthesized BaTiO3 powders is ranging from 0.98 to 1.02. The Raman spectra demonstrate that the BaTiO3 powders are tetragonal phase and without second phase. The XRD data show a significant change in tetragonality (c/a ratio) with Ba/Ti ratio from 0.99̃0.98. The Ti-excess samples exhibit a higher tetragonality (c/a ratio = 1.0109) than that in Ba-excess samples (c/a ratio = 1.0097).

AB - The effect of Ba/Ti ratio on crystal structure and microstructure was studied using XRF, Raman spectra, XRD, SEM, and TEM. A series of BaTiO 3 powders were synthesized from high purity BaCO3 and TiO2 powders with Ba/Ti ratio ranging from 0.92 to 1.08 at 1200°C calcination temperature for 4 h. The XRF results confirm the Ba/Ti ratio of these synthesized BaTiO3 powders is ranging from 0.98 to 1.02. The Raman spectra demonstrate that the BaTiO3 powders are tetragonal phase and without second phase. The XRD data show a significant change in tetragonality (c/a ratio) with Ba/Ti ratio from 0.99̃0.98. The Ti-excess samples exhibit a higher tetragonality (c/a ratio = 1.0109) than that in Ba-excess samples (c/a ratio = 1.0097).

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UR - http://www.scopus.com/inward/citedby.url?scp=63749131598&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:63749131598

SN - 9781605606217

T3 - Materials Science and Technology Conference and Exhibition, MS and T'08

SP - 102

EP - 111

BT - Materials Science and Technology Conference and Exhibition MS and T'08

T2 - Materials Science and Technology Conference and Exhibition, MS and T'08

Y2 - 5 October 2008 through 9 October 2008

ER -

Roles of Ba/Ti ratio on the crystal structure and microstructure of barium titanate powders

摘要

出版系列

Other

All Science Journal Classification (ASJC) codes

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