[ Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 28, No. 1, pp.31-36

ISSN: 2508-5107 (Online)

Print publication date 15 Feb 2019

Received 15 Jan 2019 Revised 28 Jan 2019 Accepted 29 Jan 2019

DOI: https://doi.org/10.7735/ksmte.2019.28.1.31

물질 증착 및 체적 수축에 의한 관형 생체적합 세라믹 지지체의 3D 프린팅

김석^a^{, *}

3D printing of Hollow Biocompatible Ceramic Scaffold by Material Deposition and Volumetric Shrinkage

Seok Kim^a^{, *}

aDepartment of Mechanical Engineering, Massachusetts Institute of Technology 77 Massachusetts Avenue, Cambridge, MA 02139, USA

Correspondence to: ^*Tel.: +1-617-253-6401 Fax: +1-617-258-6156 E-mail address: kimseok@mit.edu (Seok Kim).

Abstract

Efficient heat and mass transfer for biological ceramic scaffolds are desirable for a broad array of biological and environmental applications. Porous substrates with thinner cell/pore walls and higher cell/pore density enable faster chemical reaction due to larger surface area and lower relative density. However, manufacturing of well-engineered structures with thin wall and higher cell/pore density remains a challenge. To overcome the limitations associated with the traditional manufacturing process, we study manufacturing-friendly structural design and additive manufacturing processes for biocompatible ceramic microarchitectures with a high surface area to volume ratio by material deposition and volumetric shrinkage. In this study, our idea for achieving efficient ceramic substrates is leveraging on the geometrical benefits of three dimensional (3D) microlattices of thin-walled hollow-tubes realized through proposed additive manufacturing processes.

Keywords:

3D printing, Bio-ceramic, Additive manufacturing, Hollow microlattice, Scaffold

Acknowledgments

이 연구는 2019년도 산업통상자원부 및 산업기술평가관리원(KEIT) 연구비 지원에 의한 연구임 (No.20000665).

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