알칼리 표면개질을 통한 다공성 알루미늄 합금의 하이브리드 기공구조 형성The Formation of Hybridized Porous Structure of Al Alloy by Alkali Surface Modification
- Other Titles
- The Formation of Hybridized Porous Structure of Al Alloy by Alkali Surface Modification
- Authors
- 김영문; 이영중; 김대건; 이규환; 김영도
- Issue Date
- Feb-2009
- Publisher
- 한국분말야금학회
- Keywords
- Porous surface; Pore structure control; Alkali surface modification; Hybrid pore structure
- Citation
- 한국분말야금학회지, v.16, no.1, pp.22 - 27
- Indexed
- KCI
- Journal Title
- 한국분말야금학회지
- Volume
- 16
- Number
- 1
- Start Page
- 22
- End Page
- 27
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/177219
- DOI
- 10.4150/KPMI.2009.16.1.022
- ISSN
- 1225-7591
- Abstract
- To improve the filtration efficiency of porous materials used in filters, an extensive specific surface area is required to serve as a site for adsorption of impurities. In this paper, a method for creating a hybridized porous alloy using a powder metallurgical technique to build macropores in an Al-4 wt.% Cu alloy and subsequent surface modification for a microporous surface with a considerably increased specific surface area is suggested. The macropore structure was controlled by granulation, compacting pressure, and sintering; the micropore structure was obtained by a surface modification using a dilute NaOH solution. The specific surface area of surface-modified specimen increased about 10 times compare to as-sintered specimen that comprised of the macropore structure. Also, the surface-modified specimens showed a remarkable increase in micropores larger than 10 nm. Such a hybridized porous structure has potential for application in water and air purification filters, as well as membrane pre-treatment and catalysis.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 신소재공학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/177219)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.