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

Department of Resources Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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 0.99̃0.98. The Ti-excess samples exhibit a higher tetragonality (c/a ratio = 1.0109) than that in Ba-excess samples (c/a ratio = 1.0097).

Original language	English
Title of host publication	Materials Science and Technology Conference and Exhibition MS and T'08
Pages	102-111
Number of pages	10
Publication status	Published - 2008 Dec 1
Event	Materials Science and Technology Conference and Exhibition, MS and T'08 - Pittsburgh, PA, United States Duration: 2008 Oct 5 → 2008 Oct 9

Publication series

Name	Materials Science and Technology Conference and Exhibition, MS and T'08
Volume	1

Other

Other	Materials Science and Technology Conference and Exhibition, MS and T'08
Country/Territory	United States
City	Pittsburgh, PA
Period	08-10-05 → 08-10-09

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials

Cite this

@inproceedings{9c2b8303605b4dc19e121fc613c2187e,

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. in Materials Science and Technology Conference and Exhibition MS and T'08. Materials Science and Technology Conference and Exhibition, MS and T'08, vol. 1, pp. 102-111, Materials Science and Technology Conference and Exhibition, MS and T'08, Pittsburgh, PA, United States, 08-10-05.

Roles of Ba/Ti ratio on the crystal structure and microstructure of barium titanate powders. / Chang, C. Y.; Tu, M. T.; Su, C. Y. et al.
Materials Science and Technology Conference and Exhibition MS and T'08. 2008. p. 102-111 (Materials Science and Technology Conference and Exhibition, MS and T'08; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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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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

Abstract

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All Science Journal Classification (ASJC) codes

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