Barium titanate ceramics prepared from conventional and microwave hydrothermal powders

Shi Fang Liu; Isaac Robin Abothu; Sridhar Komarneni

doi:10.1016/S0167-577X(98)00187-6

Barium titanate ceramics prepared from conventional and microwave hydrothermal powders

Shi Fang Liu
, Isaac Robin Abothu
, Sridhar Komarneni

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

89 Scopus citations

Abstract

Microwave-hydrothermal (MH) synthesis of BaTiO₃ was done at 138°C with reaction time as low as 15 min, using Ba(NO₃)₂, TiCl₄ and KOH as starting chemicals. The resulting powder was pressed into pellets and sintered at different temperatures. BaTiO₃ ceramics prepared by the above method resulted in a density of about 93% upon sintering at 1300°C/2 h with larger grains and room temperature relative permittivity of 2000 at 1 kHz with a Curie temperature of 125°C. The above properties were compared with samples of the same composition prepared by conventional hydrothermal (CH) method using the same starting solutions.

Original language	English (US)
Pages (from-to)	344-350
Number of pages	7
Journal	Materials Letters
Volume	38
Issue number	5
DOIs	https://doi.org/10.1016/S0167-577X(98)00187-6
State	Published - Mar 5 1999

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Barium titanate ceramics prepared from conventional and microwave hydrothermal powders",

abstract = "Microwave-hydrothermal (MH) synthesis of BaTiO3 was done at 138°C with reaction time as low as 15 min, using Ba(NO3)2, TiCl4 and KOH as starting chemicals. The resulting powder was pressed into pellets and sintered at different temperatures. BaTiO3 ceramics prepared by the above method resulted in a density of about 93\% upon sintering at 1300°C/2 h with larger grains and room temperature relative permittivity of 2000 at 1 kHz with a Curie temperature of 125°C. The above properties were compared with samples of the same composition prepared by conventional hydrothermal (CH) method using the same starting solutions.",

author = "Liu, \{Shi Fang\} and Abothu, \{Isaac Robin\} and Sridhar Komarneni",

year = "1999",

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doi = "10.1016/S0167-577X(98)00187-6",

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T1 - Barium titanate ceramics prepared from conventional and microwave hydrothermal powders

AU - Liu, Shi Fang

AU - Abothu, Isaac Robin

AU - Komarneni, Sridhar

PY - 1999/3/5

Y1 - 1999/3/5

N2 - Microwave-hydrothermal (MH) synthesis of BaTiO3 was done at 138°C with reaction time as low as 15 min, using Ba(NO3)2, TiCl4 and KOH as starting chemicals. The resulting powder was pressed into pellets and sintered at different temperatures. BaTiO3 ceramics prepared by the above method resulted in a density of about 93% upon sintering at 1300°C/2 h with larger grains and room temperature relative permittivity of 2000 at 1 kHz with a Curie temperature of 125°C. The above properties were compared with samples of the same composition prepared by conventional hydrothermal (CH) method using the same starting solutions.

AB - Microwave-hydrothermal (MH) synthesis of BaTiO3 was done at 138°C with reaction time as low as 15 min, using Ba(NO3)2, TiCl4 and KOH as starting chemicals. The resulting powder was pressed into pellets and sintered at different temperatures. BaTiO3 ceramics prepared by the above method resulted in a density of about 93% upon sintering at 1300°C/2 h with larger grains and room temperature relative permittivity of 2000 at 1 kHz with a Curie temperature of 125°C. The above properties were compared with samples of the same composition prepared by conventional hydrothermal (CH) method using the same starting solutions.

UR - https://www.scopus.com/pages/publications/0033100475

UR - https://www.scopus.com/pages/publications/0033100475#tab=citedBy

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DO - 10.1016/S0167-577X(98)00187-6

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VL - 38

SP - 344

EP - 350

JO - Materials Letters

JF - Materials Letters

IS - 5

ER -

Barium titanate ceramics prepared from conventional and microwave hydrothermal powders

Abstract

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