Novel additive manufacturing of photocurable ceramic slurry containing freezing vehicle as porogen for hierarchical porous structure

Jung Bin Lee; Woo Youl Maeng; Young Hag Koh; Hyoun Ee Kim

doi:10.1016/j.ceramint.2019.07.116

Novel additive manufacturing of photocurable ceramic slurry containing freezing vehicle as porogen for hierarchical porous structure

Jung Bin Lee, Woo Youl Maeng, Young Hag Koh, Hyoun Ee Kim

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

23 Citations (Scopus)

Abstract

This paper proposes a photocurable ceramic slurry containing a freezing vehicle as a novel feedstock for digital light processing (DLP) technique, which can produce hierarchical porous ceramic structures. A thin layer, comprised of a 3-dimensionally interconnected ceramic/monomer network surrounded by a frozen camphene-camphor alloy network, can be effectively photopolymerized by the DLP process, and thus micropores can be created after the removal of the camphene-camphor network via freeze-drying. Several processing parameters for the DLP process, including the temperature of the building vat, layer thickness, and UV exposure time, were optimized to produce hierarchical porous ceramic structures. The effect of freezing vehicle content on the microporous structures (e.g., porosity and pore size) and mechanical properties of ceramic frameworks was examined. In addition, hierarchical macro/micro-porous ceramic scaffolds comprised of microporous ceramic frameworks separated by microporous CaP frameworks were produced, and their porous structures and mechanical properties were characterized.

Original language	English
Pages (from-to)	21321-21327
Number of pages	7
Journal	Ceramics International
Volume	45
Issue number	17
DOIs	https://doi.org/10.1016/j.ceramint.2019.07.116
Publication status	Published - 2019 Dec 1

Bibliographical note

Funding Information:
This work was supported by the Industrial Strategic Technology Development Program ( 10050709 , Development of core technology on organic-inorganic composites for customized 3D printing with high-resolution (<30 μm)) funded by the Ministry of Trade, Industry and Energy and Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education ( NRF-2018R1A2B6002939 ).

Publisher Copyright:
© 2019 Elsevier Ltd and Techna Group S.r.l.

Keywords

Additive manufacturing
Freezing vehicle
Hierarchical structure
Photopolymerization
Porous ceramics

ASJC Scopus subject areas

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.2019.07.116

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abstract = "This paper proposes a photocurable ceramic slurry containing a freezing vehicle as a novel feedstock for digital light processing (DLP) technique, which can produce hierarchical porous ceramic structures. A thin layer, comprised of a 3-dimensionally interconnected ceramic/monomer network surrounded by a frozen camphene-camphor alloy network, can be effectively photopolymerized by the DLP process, and thus micropores can be created after the removal of the camphene-camphor network via freeze-drying. Several processing parameters for the DLP process, including the temperature of the building vat, layer thickness, and UV exposure time, were optimized to produce hierarchical porous ceramic structures. The effect of freezing vehicle content on the microporous structures (e.g., porosity and pore size) and mechanical properties of ceramic frameworks was examined. In addition, hierarchical macro/micro-porous ceramic scaffolds comprised of microporous ceramic frameworks separated by microporous CaP frameworks were produced, and their porous structures and mechanical properties were characterized.",

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note = "Funding Information: This work was supported by the Industrial Strategic Technology Development Program ( 10050709 , Development of core technology on organic-inorganic composites for customized 3D printing with high-resolution (<30 μm)) funded by the Ministry of Trade, Industry and Energy and Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education ( NRF-2018R1A2B6002939 ). Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd and Techna Group S.r.l.",

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AU - Lee, Jung Bin

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AU - Koh, Young Hag

AU - Kim, Hyoun Ee

N1 - Funding Information: This work was supported by the Industrial Strategic Technology Development Program ( 10050709 , Development of core technology on organic-inorganic composites for customized 3D printing with high-resolution (<30 μm)) funded by the Ministry of Trade, Industry and Energy and Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education ( NRF-2018R1A2B6002939 ). Publisher Copyright: © 2019 Elsevier Ltd and Techna Group S.r.l.

PY - 2019/12/1

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N2 - This paper proposes a photocurable ceramic slurry containing a freezing vehicle as a novel feedstock for digital light processing (DLP) technique, which can produce hierarchical porous ceramic structures. A thin layer, comprised of a 3-dimensionally interconnected ceramic/monomer network surrounded by a frozen camphene-camphor alloy network, can be effectively photopolymerized by the DLP process, and thus micropores can be created after the removal of the camphene-camphor network via freeze-drying. Several processing parameters for the DLP process, including the temperature of the building vat, layer thickness, and UV exposure time, were optimized to produce hierarchical porous ceramic structures. The effect of freezing vehicle content on the microporous structures (e.g., porosity and pore size) and mechanical properties of ceramic frameworks was examined. In addition, hierarchical macro/micro-porous ceramic scaffolds comprised of microporous ceramic frameworks separated by microporous CaP frameworks were produced, and their porous structures and mechanical properties were characterized.

AB - This paper proposes a photocurable ceramic slurry containing a freezing vehicle as a novel feedstock for digital light processing (DLP) technique, which can produce hierarchical porous ceramic structures. A thin layer, comprised of a 3-dimensionally interconnected ceramic/monomer network surrounded by a frozen camphene-camphor alloy network, can be effectively photopolymerized by the DLP process, and thus micropores can be created after the removal of the camphene-camphor network via freeze-drying. Several processing parameters for the DLP process, including the temperature of the building vat, layer thickness, and UV exposure time, were optimized to produce hierarchical porous ceramic structures. The effect of freezing vehicle content on the microporous structures (e.g., porosity and pore size) and mechanical properties of ceramic frameworks was examined. In addition, hierarchical macro/micro-porous ceramic scaffolds comprised of microporous ceramic frameworks separated by microporous CaP frameworks were produced, and their porous structures and mechanical properties were characterized.

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Novel additive manufacturing of photocurable ceramic slurry containing freezing vehicle as porogen for hierarchical porous structure

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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