Fabrication of textured alumina by magnetic alignment via gelcasting based on low-toxic system

Agnieszka Szudarska; Tadeusz Mizerski; Yoshio Sakka; Tohru S. Suzuki; Mikolaj Szafran

doi:10.1016/j.jeurceramsoc.2014.05.017

Fabrication of textured alumina by magnetic alignment via gelcasting based on low-toxic system

Agnieszka Szudarska^*, Tadeusz Mizerski, Yoshio Sakka, Tohru S. Suzuki, Mikolaj Szafran

^*Corresponding author for this work

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

19 Citations (Scopus)

Abstract

The controlled development of texture in ceramics allows to improve some electrical, piezoelectric and mechanical properties of advanced ceramics materials by tailoring the microstructure. A highly textured microstructure of undoped dense alumina was attained by applying a novel combination of gelcasting techniques with magnetic alignment followed by sintering. A newly synthesized low-toxic acrylic monomer based on galactose was introduced to the gelcasting procedure. Thermal analysis of the gelcast has been performed to examine decomposition process of the new binder and match appropriate sintering rate. The effectiveness of the proposed procedure has been related to rheological properties of the suspension by clarifying the influence of the powder and the dispersant content. It has been also related to the idle time of polymerization by clarifying the influence of the initiator content. The new method is compared to slip casting in high magnetic field that has been used widely so far.

Original language	English
Pages (from-to)	3841-3848
Number of pages	8
Journal	Journal of the European Ceramic Society
Volume	34
Issue number	15
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2014.05.017
Publication status	Published - 2014 Dec
Externally published	Yes

Keywords

Alumina
Gelcasting
Magnetic field
Texture control

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1016/j.jeurceramsoc.2014.05.017

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title = "Fabrication of textured alumina by magnetic alignment via gelcasting based on low-toxic system",

abstract = "The controlled development of texture in ceramics allows to improve some electrical, piezoelectric and mechanical properties of advanced ceramics materials by tailoring the microstructure. A highly textured microstructure of undoped dense alumina was attained by applying a novel combination of gelcasting techniques with magnetic alignment followed by sintering. A newly synthesized low-toxic acrylic monomer based on galactose was introduced to the gelcasting procedure. Thermal analysis of the gelcast has been performed to examine decomposition process of the new binder and match appropriate sintering rate. The effectiveness of the proposed procedure has been related to rheological properties of the suspension by clarifying the influence of the powder and the dispersant content. It has been also related to the idle time of polymerization by clarifying the influence of the initiator content. The new method is compared to slip casting in high magnetic field that has been used widely so far.",

keywords = "Alumina, Gelcasting, Magnetic field, Texture control",

author = "Agnieszka Szudarska and Tadeusz Mizerski and Yoshio Sakka and Suzuki, {Tohru S.} and Mikolaj Szafran",

note = "Funding Information: This work was partially supported by the Ministry of Science and Higher Education of Poland (Grant No. N N209 19 97 38 ). A. Szudarska is grateful to the support from National Institute for Materials Science by the NIMS Internship Program, and help in experiments and useful discussions from Dr. T.S. Suzuki and Dr. T. Uchikoshi. ",

year = "2014",

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doi = "10.1016/j.jeurceramsoc.2014.05.017",

language = "English",

volume = "34",

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T1 - Fabrication of textured alumina by magnetic alignment via gelcasting based on low-toxic system

AU - Szudarska, Agnieszka

AU - Mizerski, Tadeusz

AU - Sakka, Yoshio

AU - Suzuki, Tohru S.

AU - Szafran, Mikolaj

N1 - Funding Information: This work was partially supported by the Ministry of Science and Higher Education of Poland (Grant No. N N209 19 97 38 ). A. Szudarska is grateful to the support from National Institute for Materials Science by the NIMS Internship Program, and help in experiments and useful discussions from Dr. T.S. Suzuki and Dr. T. Uchikoshi.

PY - 2014/12

Y1 - 2014/12

N2 - The controlled development of texture in ceramics allows to improve some electrical, piezoelectric and mechanical properties of advanced ceramics materials by tailoring the microstructure. A highly textured microstructure of undoped dense alumina was attained by applying a novel combination of gelcasting techniques with magnetic alignment followed by sintering. A newly synthesized low-toxic acrylic monomer based on galactose was introduced to the gelcasting procedure. Thermal analysis of the gelcast has been performed to examine decomposition process of the new binder and match appropriate sintering rate. The effectiveness of the proposed procedure has been related to rheological properties of the suspension by clarifying the influence of the powder and the dispersant content. It has been also related to the idle time of polymerization by clarifying the influence of the initiator content. The new method is compared to slip casting in high magnetic field that has been used widely so far.

AB - The controlled development of texture in ceramics allows to improve some electrical, piezoelectric and mechanical properties of advanced ceramics materials by tailoring the microstructure. A highly textured microstructure of undoped dense alumina was attained by applying a novel combination of gelcasting techniques with magnetic alignment followed by sintering. A newly synthesized low-toxic acrylic monomer based on galactose was introduced to the gelcasting procedure. Thermal analysis of the gelcast has been performed to examine decomposition process of the new binder and match appropriate sintering rate. The effectiveness of the proposed procedure has been related to rheological properties of the suspension by clarifying the influence of the powder and the dispersant content. It has been also related to the idle time of polymerization by clarifying the influence of the initiator content. The new method is compared to slip casting in high magnetic field that has been used widely so far.

KW - Alumina

KW - Gelcasting

KW - Magnetic field

KW - Texture control

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Fabrication of textured alumina by magnetic alignment via gelcasting based on low-toxic system

Abstract

Keywords

ASJC Scopus subject areas

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