Fabrication and Characterization of Porous Nickel Membrane for High Precision Gas Filter by In-situ Reduction/Sintering Process

In-situ 환원/소결법을 이용한 다공성 니켈 멤브레인 가스필터의 제조 및 평가

Kim, Nam-Hoon;Song, Han-Bok;Choi, Sung-Churl;Choa, Yong-Ho

  • Published : 2009.08.28


Disk type porous nickel membrane was fabricated by in-situ reduction/sintering process using compacted NiO/PMMA (PMMA; Polymethyl methacrylate) mixture at $800^{\circ}C$ in hydrogen atmosphere. The porosity (49$\sim$58%) of these membrane was investigated as an amount of PMMA additive. The thermal decomposition and reduction behavior of NiO/PMMA were analyzed by TG/DTA in hydrogen atmosphere and the activation energy for the hydrogen reduction of NiO and thermal degradation of PMMA was calculated as 61.1 kJ/mol, evaluated by Kissinger method. Finally, the filtering performance and pressure drop were measured by particle counting system.


Nickel membrane;Gas filter;Filtering test;In-situ reduction/sintering


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