Abstract
This study explains the development of a manufacturing process that is machinable for a ceramic product. The initial process involves manufacturing a ceramic slurry, which is a mixture of high-weight percentage ceramic powders, and a polymeric binder. The ceramic slurry is then pressed to shape a solid body knwon as the green part, which can be structured using conventional machining tools. The structured green part undergoes a debinding process, the resulting body is referred to as the brown part. Finally, sintering is performed to merge the peripheral ceramic powders, and the white part is obtained. The white part exhibited approximately 18 % isotropic shrinkage in dimension and 9.4 % weight reduction compared with the initial green part. The durability of each part is determined via impact-resistant and microindentation tests. The fracture-resistant energy of the white part is determined as 0.673 J, which is an increase of approximately 500 % compared with the values of other parts. Furthermore, the elastic modulus of the white part is determined to be 14.7 GPa, representing an increase of approximately 270 %. In conclusion, we employed an innovative manufacturing process for ceramic products to address the challenges in conventional methods.
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This study was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT) (NRF-2021R1A2C1007016).
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Jeongheon Lee is a Ph.D. student of the School of Mechanical System & Automotive Engineering, Chsoun University, Korea. He received his master’s degree in Mechanical System & Automotive Engineering from Gwangju. His research interest is mechanical characterization of thin films and fabrication of thin film process.
Jae B. Kwak joined the Department of Mechanical System and Automotive Engineering at Chosun University, Korea in 2018 as an Assistant Professor. He had worked for Samsung Electronics for 7 years as a dedicated engineer to develop a leading-edge manufacturing system and structural design for smart devices after receiving his Ph.D. in Mechanical Engineering from the State University of New York at Binghamton, USA in 2010. He also obtained his B.S. and M.S. degrees in Mechanical Engineering from the State University of New York at Binghamton in 2005 and 2008, respectively. His current research area is the development of new manufacturing technology for the design and reliability of smart electronics.
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Lee, J.H., Kwak, J.B. Development of a manufacturing process for fine ceramic components using the composite of silica slurry: an evaluation of its mechanical durability. J Mech Sci Technol 38, 1999–2004 (2024). https://doi.org/10.1007/s12206-024-0331-6
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DOI: https://doi.org/10.1007/s12206-024-0331-6