Characterization of Porous Metal Flow Restrictors for Use as the J-T Expander in Hydrogen Sorption Cryocoolers

2002 ◽  
pp. 545-552
Author(s):  
Alan R. Levy ◽  
Lawrence A. Wade
Keyword(s):  
Metal Flow ◽  
Porous Metal ◽  
Hydrogen Sorption

Characterization of three- and four-point bending properties of porous metal fiber sintered sheet

2014 ◽  
Vol 56 ◽  
pp. 522-527 ◽  
Author(s):  
Wei Zhou ◽  
Qinghui Wang ◽  
Weisong Ling ◽  
Liangzong He ◽  
Yong Tang ◽  
...  
Keyword(s):  
Porous Metal ◽  
Metal Fiber ◽  
Bending Properties ◽  
Four Point Bending

Understanding T-Ingot Horizontal DC Casting Using Process Modelling

2006 ◽  
Vol 519-521 ◽  
pp. 1461-1466 ◽  
Author(s):  
André Larouche ◽  
Malcom Lane ◽  
Massimo DiCiano ◽  
Daan M. Maijer ◽  
Steve CockCroft ◽  
...  
Keyword(s):  
Process Model ◽  
Defect Formation ◽  
Metal Flow ◽  
Casting Process ◽  
Production Costs ◽  
Process Characteristics ◽  
Powerful Approach ◽  
Foundry Alloys ◽  
Dc Casting

Horizontal continuous casting process has been successfully implemented in Alcan for the production of T-ingots of primary aluminium and foundry alloys. Ability to achieve increased productivity targets and reduce production costs relies on a fundamental understanding of key process characteristics and operating parameters. Thanks to the long-standing experience in vertical DC Casting, numerical modelling appeared as a powerful approach to understand phenomena related to metal flow, solidification and ultimately defect formation. As part of a collaborative R&D program, a global model of horizontal casting process, integrating specialized sub-models on critical aspects of the process such as meniscus dynamics, is being developed. Experimental characterization of primary and secondary cooling is performed in parallel with modelling work to provide the information necessary to properly characterize mould heat transfer. This paper will present the development of a 3D process model of T-ingot casting along with its application to solve specific process challenges that have emerged during the first years of production in the plant.

Use of Electron Backscatter Diffraction Technique in Characterization of 6XXX Aluminum Alloy Extrusions

2000 ◽  
Vol 6 (S2) ◽  
pp. 954-955
Author(s):  
Steven R. Claves ◽  
Wojciech Z. Misiolek ◽  
William H. Van Geertruyden ◽  
David B. Williams
Keyword(s):  
Electron Backscatter Diffraction ◽  
Metal Flow ◽  
Extrusion Process ◽  
Cross Sectional ◽  
Electron Backscattering Diffraction ◽  
Electron Backscatter ◽  
Individual Grains ◽  
Backscatter Diffraction ◽  
6Xxx Series

Electron Backscattering Diffraction (EBSD) is an important tool for analyzing the crystal grain orientation of a microstructure and can be used to formulate conclusions about microtexture, texture determined from individual grains. This technique has been used to study a 6xxx series aluminum alloy's response to the deformation of the extrusion process. Extrusion is the process by which a billet of material is forced, under high pressure, through a die. The material undergoes a significant decrease in cross sectional area, and is formed into a shape equivalent to the geometry of the die orifice. Different bearing lands are shown in shown in Figure 1. These surfaces form the part, and are designed to control the metal flow making it uniform through the die, thus yielding good mechanical properties. This research was focused on the resultant microstructure. The shaded regions of Figure 2 show the two surface regions where EBSD measurements were taken.

Preparation and Characterization of Magnetic and Porous Metal-Ceramic Nanocomposites from a Zeolite Precursor and Their Application for DNA Separation

2017 ◽  
Vol 13 (3) ◽  
pp. 337-348 ◽  
Author(s):  
Michele Pansini ◽  
Gianfranco Dell'agli ◽  
Antonello Marocco ◽  
Paolo Antonio Netti ◽  
Edmondo Battista ◽  
...  
Keyword(s):  
Porous Metal ◽  
Dna Separation ◽  
Metal Ceramic ◽  
Ceramic Nanocomposites

Electrochemical impedance characterization of porous metal hydride electrodes

2004 ◽  
Vol 49 (22-23) ◽  
pp. 3879-3890 ◽  
Author(s):  
Elida B. Castro ◽  
Silvia G. Real ◽  
Alejandro Bonesi ◽  
Arnaldo Visintin ◽  
Walter E. Triaca
Keyword(s):  
Metal Hydride ◽  
Electrochemical Impedance ◽  
Porous Metal ◽  
Metal Hydride Electrodes ◽  
Impedance Characterization

Porous Metal-Organic Frameworks Based on an Anthracene Derivative: Syntheses, Structure Analysis, and Hydrogen Sorption Studies

2009 ◽  
Vol 48 (12) ◽  
pp. 5263-5268 ◽  
Author(s):  
Shengqian Ma ◽  
Jason M. Simmons ◽  
Daofeng Sun ◽  
Daqiang Yuan ◽  
Hong-Cai Zhou
Keyword(s):  
Structure Analysis ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Hydrogen Sorption ◽  
Anthracene Derivative ◽  
Metal Organic

Characterization of electrical conductivity of porous metal fiber sintered sheet using four-point probe method

2012 ◽  
Vol 37 ◽  
pp. 161-165 ◽  
Author(s):  
Wei Zhou ◽  
Yong Tang ◽  
Rong Song ◽  
Lelun Jiang ◽  
K.S. Hui ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Porous Metal ◽  
Probe Method ◽  
Metal Fiber
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