Glycothermal process for barium magnesium tantalate nanopowders synthesis

Amar Badrakh; Hyun Sig Kil; Dae Young Lim; Seung Beom Cho; Sahn Nahm; Richard E. Riman

doi:10.1016/j.jeurceramsoc.2011.05.038

Glycothermal process for barium magnesium tantalate nanopowders synthesis

Amar Badrakh, Hyun Sig Kil, Dae Young Lim, Seung Beom Cho, Sahn Nahm, Richard E. Riman

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

3 Citations (Scopus)

Abstract

Barium magnesium tantalate Ba(Mg_1/3Ta_2/3)O₃ (BMT) nanopowders were synthesized at a low temperature of 220°C through glycothermal reaction by using Ba(OH)₂·8H₂O, Mg(NO₃)·6H₂O, and TaCl₅ as precursors and 1,4-butanediol as solvent. It is demonstrated that higher synthesis temperatures and co-precipitation of magnesium and tantalum improve the incorporation of magnesium into BMT nanopowders under glycothermal treatment and produce a homogeneous, stoichiometric powder. The glycothermally derived BMT nanopowders are very reactive and provide a high-density sintered body with 97.1% of theoretical density at a low temperature of 1350°C. The average grain size of the sintered ceramics was 1.2±0.2μm and relatively uniform in comparison with the ceramics sintered with powders produced from the conventional method.

Original language	English
Pages (from-to)	2319-2329
Number of pages	11
Journal	Journal of the European Ceramic Society
Volume	31
Issue number	13
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2011.05.038
Publication status	Published - 2011 Nov

Keywords

A. Powders-chemical preparation
A. Sintering
D. Perovskites
D. Tantalates
Glycothermal

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1016/j.jeurceramsoc.2011.05.038

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title = "Glycothermal process for barium magnesium tantalate nanopowders synthesis",

abstract = "Barium magnesium tantalate Ba(Mg1/3Ta2/3)O3 (BMT) nanopowders were synthesized at a low temperature of 220°C through glycothermal reaction by using Ba(OH)2·8H2O, Mg(NO3)·6H2O, and TaCl5 as precursors and 1,4-butanediol as solvent. It is demonstrated that higher synthesis temperatures and co-precipitation of magnesium and tantalum improve the incorporation of magnesium into BMT nanopowders under glycothermal treatment and produce a homogeneous, stoichiometric powder. The glycothermally derived BMT nanopowders are very reactive and provide a high-density sintered body with 97.1% of theoretical density at a low temperature of 1350°C. The average grain size of the sintered ceramics was 1.2±0.2μm and relatively uniform in comparison with the ceramics sintered with powders produced from the conventional method.",

keywords = "A. Powders-chemical preparation, A. Sintering, D. Perovskites, D. Tantalates, Glycothermal",

author = "Amar Badrakh and Kil, {Hyun Sig} and Lim, {Dae Young} and Cho, {Seung Beom} and Sahn Nahm and Riman, {Richard E.}",

year = "2011",

month = nov,

doi = "10.1016/j.jeurceramsoc.2011.05.038",

language = "English",

volume = "31",

pages = "2319--2329",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

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TY - JOUR

T1 - Glycothermal process for barium magnesium tantalate nanopowders synthesis

AU - Badrakh, Amar

AU - Kil, Hyun Sig

AU - Lim, Dae Young

AU - Cho, Seung Beom

AU - Nahm, Sahn

AU - Riman, Richard E.

PY - 2011/11

Y1 - 2011/11

N2 - Barium magnesium tantalate Ba(Mg1/3Ta2/3)O3 (BMT) nanopowders were synthesized at a low temperature of 220°C through glycothermal reaction by using Ba(OH)2·8H2O, Mg(NO3)·6H2O, and TaCl5 as precursors and 1,4-butanediol as solvent. It is demonstrated that higher synthesis temperatures and co-precipitation of magnesium and tantalum improve the incorporation of magnesium into BMT nanopowders under glycothermal treatment and produce a homogeneous, stoichiometric powder. The glycothermally derived BMT nanopowders are very reactive and provide a high-density sintered body with 97.1% of theoretical density at a low temperature of 1350°C. The average grain size of the sintered ceramics was 1.2±0.2μm and relatively uniform in comparison with the ceramics sintered with powders produced from the conventional method.

AB - Barium magnesium tantalate Ba(Mg1/3Ta2/3)O3 (BMT) nanopowders were synthesized at a low temperature of 220°C through glycothermal reaction by using Ba(OH)2·8H2O, Mg(NO3)·6H2O, and TaCl5 as precursors and 1,4-butanediol as solvent. It is demonstrated that higher synthesis temperatures and co-precipitation of magnesium and tantalum improve the incorporation of magnesium into BMT nanopowders under glycothermal treatment and produce a homogeneous, stoichiometric powder. The glycothermally derived BMT nanopowders are very reactive and provide a high-density sintered body with 97.1% of theoretical density at a low temperature of 1350°C. The average grain size of the sintered ceramics was 1.2±0.2μm and relatively uniform in comparison with the ceramics sintered with powders produced from the conventional method.

KW - A. Powders-chemical preparation

KW - A. Sintering

KW - D. Perovskites

KW - D. Tantalates

KW - Glycothermal

UR - http://www.scopus.com/inward/record.url?scp=79960416583&partnerID=8YFLogxK

U2 - 10.1016/j.jeurceramsoc.2011.05.038

DO - 10.1016/j.jeurceramsoc.2011.05.038

M3 - Article

AN - SCOPUS:79960416583

SN - 0955-2219

VL - 31

SP - 2319

EP - 2329

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 13

ER -

Glycothermal process for barium magnesium tantalate nanopowders synthesis

Abstract

Keywords

ASJC Scopus subject areas

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