Preparation and Application of High Gas Permeation Ceramics

• Main Authors: Mei-Jyun Chen, 陳美君
• Other Authors: Wen-Ku Chang
• Format: Others
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/08180622441395295330

碩士 === 國立東華大學 === 材料科學與工程學系 === 101 === Using traditional way-suction cups to move the glass will be cause the glass rupture and deform with the thinner and bigger size glass. To improve this disadvantage, non-contact handling methods are developed. This non-contact method had low friction, high speed to against static electricity and pollutants attached. But it mad by mental or nozzle can’t control the air layer’s height and stability. It will be caused injure and bruises. If change the material to ceramic, will improve this disadvantage. In this study, the experimental materials are Alumina oxide, montmorillonite and various particle sizes porous formations which has different ratios. After mixing, drying and grinding, after pass through 50 mesh, pressed by uniaxial pressing at 20 MPa. To remove water and impurities by the first step heating to 800℃, and then heated to 1200℃〜1500℃. After holding for six hours, the product can be made. To discuss weight loss of sintering and shrinkage ratio of size. To measure permeation, flexural strength and the porosity by Archimedes Finally, to observe pore size and sintering neck by SEM. The research major improvements in fabricate micro-porous ceramic’s problems. For example, binder and porous formation can’t remove by sintering. It will be caused the porous block to impede the permeation. This study using various porous formation with various particle size to stack the pore replaces the porogen. And using small particle size aluminum oxide to upgrade strength replaces the binder. Even more add montmorillonite which had lower melting point than aluminum oxid and similar components with aluminum oxid. Finally, we can get the highest permeation in 0.13 l/min×cm2.