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

Department of Materials Science and Engineering

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

2 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",

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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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