Fabrication of a Plate-Type Porous Stainless Steel 316L Powder Filter with Different Pore Structures without Use of a Binder

• Autorzy: Yun Su-Jin , Kim Hyeon-Ju , Seo Eun-Chae , Kim Min-Ji , Park Manho , Lee Jungwoo , Yun Jung-Yeul

Identyfikatory

DOI

10.24425/amm.2024.149775

• Języki publikacji: EN

Abstrakty

EN

Generally, when fabricating porous filters using metal powder, about 1 to 2 wt% of a binder is added to increase the formability of the metal powder. If the binder is not completely removed through a debinding and sintering process, however it can cause defects such as discoloration and the generation of fine particles. In this study, a study was conducted to fabricate a plate-type porous stainless steel powder filter with a different pore structure without the use of a biner. First, the metal powder is charged into a ceramic mold to form a plate-shaped powder filter, and then covered with a ceramic top plate. In order to observe the pore properties according to the pressure, the unpressurized specimen and the specimen pressurized with a pressure of 30 MPa were then sintered at 1050℃ for one hour in a high vacuum atmosphere furnace. The microstructure of the sintered plate-shaped powder filter was observed through an optical microscope and in order to analyze its pore properties as a filter, gas permeability and porosity were measured using a capillary flow porometer and Archimedes’ law.

Słowa kluczowe

EN

gas filter; membrane; stainless steel; porosity; powder shape

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2024
• Tom: Vol. 69, iss. 2
• Strony: 497--500
• Opis fizyczny: Bibliogr. 11 poz., fot., rys.

Twórcy

autor

Yun Su-Jin

• Metal Powder Department, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
• Pusan National University, Department of Materials Science and Engineering, Busan, 46241, Republic of Korea

• https://orcid.org/0000-0002-5688-3856

autor

Kim Hyeon-Ju

• Metal Powder Department, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea

• https://orcid.org/0000-0002-0799-295X

autor

Seo Eun-Chae

• Metal Powder Department, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea

• https://orcid.org/0009-0002-3310-7536

autor

Kim Min-Ji

• Metal Powder Department, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
• Pusan National University, Department of Materials Science and Engineering, Busan, 46241, Republic of Korea

• https://orcid.org/0009-0005-5180-3473

autor

Park Manho

• R&D Center, ASFLOW Co. Ltd, Hwasung, 16648, Republic of Korea

• https://orcid.org/0000-0002-9484-5041

autor

Lee Jungwoo

• Pusan National University, Department of Materials Science and Engineering, Busan, 46241, Republic of Korea

• https://orcid.org/0000-0003-4705-9248

autor

Yun Jung-Yeul

• Metal Powder Department, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea

• https://orcid.org/0000-0003-4135-1301

Bibliografia

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Uwagi

This work is supported by the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20017434 and 20008834)