Characterization of nano-sized α-Al2O3 compacts prepared via modified θ-Al2O3@PEG technology

Wen Chiao Huang; Pei Wen Huang; Chi Yuen Huang; Fu Su Yen; Cheng Liang Huang

doi:10.1016/j.ceramint.2022.02.134

Characterization of nano-sized α-Al₂O₃ compacts prepared via modified θ-Al₂O₃@PEG technology

Wen Chiao Huang, Pei Wen Huang, Chi Yuen Huang, Fu Su Yen, Cheng Liang Huang

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

Abstract

Modified (core) θ-Al₂O₃@ (shell) polyethylene glycol (PEG) technology was used to prepare α-Al₂O₃ green compacts composed of <100-nm α-Al₂O₃ crystallites using θ-Al₂O₃ as the starting material. The preparation process has two steps. In the first step, θ-Al₂O₃ compacts in which alumina crystallites were apart individually after the removal of PEG were made. In the second step, the θ-Al₂O₃ was transformed into α-Al₂O₃.The compact showed phase purity of >85% α-Al₂O₃ with crystallites sizes ranging from 50 to 100 nm and the compact density was >60% of the theoretical value.

Original language	English
Pages (from-to)	15932-15938
Number of pages	7
Journal	Ceramics International
Volume	48
Issue number	11
DOIs	https://doi.org/10.1016/j.ceramint.2022.02.134
Publication status	Published - 2022 Jun 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.ceramint.2022.02.134

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title = "Characterization of nano-sized α-Al2O3 compacts prepared via modified θ-Al2O3@PEG technology",

abstract = "Modified (core) θ-Al2O3@ (shell) polyethylene glycol (PEG) technology was used to prepare α-Al2O3 green compacts composed of <100-nm α-Al2O3 crystallites using θ-Al2O3 as the starting material. The preparation process has two steps. In the first step, θ-Al2O3 compacts in which alumina crystallites were apart individually after the removal of PEG were made. In the second step, the θ-Al2O3 was transformed into α-Al2O3.The compact showed phase purity of >85% α-Al2O3 with crystallites sizes ranging from 50 to 100 nm and the compact density was >60% of the theoretical value.",

author = "Huang, {Wen Chiao} and Huang, {Pei Wen} and Huang, {Chi Yuen} and Yen, {Fu Su} and Huang, {Cheng Liang}",

note = "Funding Information: The authors would like to thank Ms. Hui-Jung Shih and Tsen Shih Wen of the Instrument Center of National Cheng Kung University for supporting the use of high-resolution SEM and TEM , and Crystal Machine Co. Ltd. for funding this study. Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd and Techna Group S.r.l.",

year = "2022",

month = jun,

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doi = "10.1016/j.ceramint.2022.02.134",

language = "English",

volume = "48",

pages = "15932--15938",

journal = "Ceramics International",

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AU - Huang, Wen Chiao

AU - Huang, Pei Wen

AU - Huang, Chi Yuen

AU - Yen, Fu Su

AU - Huang, Cheng Liang

N1 - Funding Information: The authors would like to thank Ms. Hui-Jung Shih and Tsen Shih Wen of the Instrument Center of National Cheng Kung University for supporting the use of high-resolution SEM and TEM , and Crystal Machine Co. Ltd. for funding this study. Publisher Copyright: © 2022 Elsevier Ltd and Techna Group S.r.l.

PY - 2022/6/1

Y1 - 2022/6/1

N2 - Modified (core) θ-Al2O3@ (shell) polyethylene glycol (PEG) technology was used to prepare α-Al2O3 green compacts composed of <100-nm α-Al2O3 crystallites using θ-Al2O3 as the starting material. The preparation process has two steps. In the first step, θ-Al2O3 compacts in which alumina crystallites were apart individually after the removal of PEG were made. In the second step, the θ-Al2O3 was transformed into α-Al2O3.The compact showed phase purity of >85% α-Al2O3 with crystallites sizes ranging from 50 to 100 nm and the compact density was >60% of the theoretical value.

AB - Modified (core) θ-Al2O3@ (shell) polyethylene glycol (PEG) technology was used to prepare α-Al2O3 green compacts composed of <100-nm α-Al2O3 crystallites using θ-Al2O3 as the starting material. The preparation process has two steps. In the first step, θ-Al2O3 compacts in which alumina crystallites were apart individually after the removal of PEG were made. In the second step, the θ-Al2O3 was transformed into α-Al2O3.The compact showed phase purity of >85% α-Al2O3 with crystallites sizes ranging from 50 to 100 nm and the compact density was >60% of the theoretical value.

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JO - Ceramics International

JF - Ceramics International

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Characterization of nano-sized α-Al₂O₃ compacts prepared via modified θ-Al₂O₃@PEG technology

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