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Article

Preliminary Characterization of Glass/Alumina Composite Using Laser Powder Bed Fusion (L-PBF) Additive Manufacturing

1
Department of Advanced Materials Engineering, Korea Polytechnic University, Siheung-si 15073, Korea
2
Department of BioMedical-Chemical Engineering (BMCE), The Catholic University of Korea, Bucheon 14662, Korea
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(9), 2156; https://doi.org/10.3390/ma13092156
Received: 22 March 2020 / Revised: 24 April 2020 / Accepted: 1 May 2020 / Published: 7 May 2020
(This article belongs to the Special Issue Additive Manufacturing Materials and Their Applications)
Powder bed fusion (PBF) additive manufacturing (AM) is currently used to produce high-efficiency, high-density, and high-performance products for a variety of applications. However, existing AM methods are applicable only to metal materials and not to high-melting-point ceramics. Here, we develop a composite material for PBF AM by adding Al2O3 to a glass material using laser melting. Al2O3 and a black pigment are added to a synthesized glass frit for improving the composite strength and increased laser-light absorption, respectively. Our sample analysis shows that the glass melts to form a composite when the mixture is laser-irradiated. To improve the sintering density, we heat-treat the sample at 750 °C to synthesize a high-density glass frit composite. As per our X-ray diffraction (XRD) analysis to confirm the reactivity of the glass frit and Al2O3, we find that no reactions occur between glass and crystalline Al2O3. Moreover, we obtain a high sample density of ≥95% of the theoretical density. We also evaluate the composite’s mechanical properties as a function of the Al2O3 content. Our approach facilitates the manufacturing of ceramic 3D structures using glass materials through PBF AM and affords the benefits of reduced process cost, improved performance, newer functionalities, and increased value addition. View Full-Text
Keywords: powder bed fusion; additive manufacturing; 3D printing; glass/alumina composite; density; mechanical property powder bed fusion; additive manufacturing; 3D printing; glass/alumina composite; density; mechanical property
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MDPI and ACS Style

Bae, B.H.; Lee, J.W.; Cha, J.M.; Kim, I.-W.; Jung, H.-D.; Yoon, C.-B. Preliminary Characterization of Glass/Alumina Composite Using Laser Powder Bed Fusion (L-PBF) Additive Manufacturing. Materials 2020, 13, 2156. https://doi.org/10.3390/ma13092156

AMA Style

Bae BH, Lee JW, Cha JM, Kim I-W, Jung H-D, Yoon C-B. Preliminary Characterization of Glass/Alumina Composite Using Laser Powder Bed Fusion (L-PBF) Additive Manufacturing. Materials. 2020; 13(9):2156. https://doi.org/10.3390/ma13092156

Chicago/Turabian Style

Bae, Byeong H., Jeong W. Lee, Jae M. Cha, Il-Won Kim, Hyun-Do Jung, and Chang-Bun Yoon. 2020. "Preliminary Characterization of Glass/Alumina Composite Using Laser Powder Bed Fusion (L-PBF) Additive Manufacturing" Materials 13, no. 9: 2156. https://doi.org/10.3390/ma13092156

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