A Study of Different Sintering Routes on Properties of Ni-Al2O3 Hydrogen Separation Membrane

2010 ◽  
Vol 434-435 ◽  
pp. 514-517
Author(s):  
Supawan Vichaphund ◽  
Duangduen Atong
Keyword(s):  
Mechanical Properties ◽  
Ball Milling ◽  
Nickel Powder ◽  
Physical And Mechanical Properties ◽  
Hydrogen Separation ◽  
Alumina Powder ◽  
Sintering Process ◽  
Separation Membrane ◽  
Sintering Conditions ◽  
Hydrogen Separation Membrane

This work aimed to investigate the effect of different sintering routes on properties of Ni-Al2O3 membrane. Alumina powder was mixed with 10 wt% nickel powder by dried ball-milling. Then, the mixture powder was uniaxially pressed to a bar shape and sintered via different sintering conditions. First route, the Ni-Al2O3 specimen was sintered at 1300°C for 2 h under air and then reduced at 900°C for 2 h under H2 atmosphere. Second route, the specimen was sintered at 1300°C for 2 h under argon. After sintering process, the physical and mechanical properties of membrane obtained from two routes were compared and discussed.

Effects of Sintering Process on the Properties of Ti3SiC2/Cu Composite

2012 ◽  
Vol 512-515 ◽  
pp. 377-381 ◽  
Author(s):  
Jin Rong Lu ◽  
Yang Zhou ◽  
Yong Zheng ◽  
Shi Bo Li ◽  
Zhen Ying Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Vickers Hardness ◽  
Hot Pressing ◽  
Sintering Temperature ◽  
Sintering Process ◽  
Vacuum Sintering ◽  
New Type ◽  
Sintering Conditions ◽  
The Relationship ◽  
Better Than

In this paper, a new type of Ti3SiC2/Cu composites with the volume fractions of 30% Ti3SiC2 particle was prepared by hot pressing and vacuum sintering respectively. The effects of sintering temperature and holding time on the density, resistance and Vickers hardness of Cu-30vol%Ti3SiC2 composite were investigated. The results show that the mechanical properties of the composites prepared by hot pressing are better than that prepared by vacuum sintering. The relative densities of Cu-30vol% Ti3SiC2 composites are rather high in suitable sintering conditions. It achieved 100% for the composites prepared by hot pressing at 930°C for 2h, and 98.4% for the composites prepared by vacuum sintering at 1250°C for 1h. At the same time, the maximum Vickers hardness reached 1735MPa at 900°C by hot pressing. The resistance and Vickers hardness of the composites decreased with an increase in sintering temperature, whereas the density increased. Scanning electron microscope (SEM) and energy-dispersive spectroscopy (EDS) were used to observe the microstructure of the composites. The relationship between microstructure and mechanical properties was discussed.

Influence of Sintering Conditions on Mechanical Properties of Ag-Nano Sintered Material

2017 ◽  
Vol 741 ◽  
pp. 7-12
Author(s):  
Shota Okuno ◽  
Qiang Yu ◽  
Yusuke Nakata
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Cross Section ◽  
Sintered Material ◽  
Sintering Process ◽  
Effect Of Pressure ◽  
Sintering Conditions ◽  
Sintering Processes ◽  
Joint Method

Recently, sintering joint using Ag-nanohas been attracting attention as a new joint method to replace the solder. However, the joint layer would contain a lot of voids after sintering processes. Since the voids affect mechanical property, the proper sintering conditions have to be selected in order to reduce these voids. In this research, the authors focus on the effect of pressure conditions at sintering process. Then, by creating FEM models including voids from cross section image of the joint layer and carrying out tensile analysis, the mechanical property of the joint layer has been acquired. Using this approach, the influence of pressure conditions on the mechanical properties is revealed.

Preparation of Pd-Cu-Ce Hydrogen Separation Membrane Alloys

2014 ◽  
Vol 672-674 ◽  
pp. 661-664
Author(s):  
Hai Zhao ◽  
Jun Qing Liu
Keyword(s):  
Composite Membrane ◽  
Electroless Plating ◽  
Hydrogen Separation ◽  
Exposure Level ◽  
Plating Technique ◽  
Separation Membrane ◽  
Effects Of Temperature ◽  
Temperature And Pressure ◽  
Hydrogen Separation Membrane

Pd-Cu-Ce composite membrane was prepared using an electroless plating technique. The effects of temperature and pressure on permeation were studied. The resistance to sulfidation was examined by exposing alloys to simulated syngas containing a combined gas of H2 and H2S. The alloys showed sings of slight sufidation at the 0.1% H2S exposure level.

Morphology and Mechanical Properties of Injectable Ceramic Microspheres

2008 ◽  
Vol 396-398 ◽  
pp. 691-694 ◽  
Author(s):  
S.M. Oliveira ◽  
C.C. Barrias ◽  
C.C. Ribeiro ◽  
I.F. Almeida ◽  
M.F. Bahia ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Morphological Structure ◽  
Optical Microscope ◽  
Spherical Particles ◽  
Sintering Process ◽  
Ionotropic Gelation ◽  
Texture Analyzer ◽  
Injection Process ◽  
Air Stream ◽  
Sintering Conditions

The aim of this study was to analyze the effect of starting powder granulometry and sintering conditions on the morphological structure and mechanical properties of injectable hydroxyapaptite (HAp) microspheres. The mechanical properties of the microspheres were evaluated, to investigate if their integrity could be maintained during the injection process. To obtain microspheres, HAp powders were dispersed in a sodium alginate solution and spherical particles were prepared by droplet extrusion under a co-axial air stream, coupled with ionotropic gelation in the presence of Ca2+. This was followed by a sintering process at various temperatures and times. The morphology of microspheres was observed under SEM, diameter measurements were performed in an optical microscope and the compression strength was evaluated using a texture analyzer. Finally, microspheres prepared using lower granulometry HAp powders and sintered at 1200 °C for 1 hour presented the best properties and were selected as the most suitable for the envisaged application.

A tailor-made porous stainless steel support for a dense hydrogen separation membrane

2016 ◽  
Vol 41 (3) ◽  
pp. 1654-1661 ◽  
Author(s):  
Kyung-Ran Hwang ◽  
Jong-Soo Park ◽  
Sung-Wook Lee ◽  
Duck-Kyu Oh ◽  
Chun-Boo Lee ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Hydrogen Separation ◽  
Porous Stainless Steel ◽  
Separation Membrane ◽  
Hydrogen Separation Membrane
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