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The Effects of Partial Crystallinity on the Hydrogen Permeation Properties in Amorphous Metallic Systems
Published online by Cambridge University Press: 01 February 2011
Abstract
It is recognized that hydrogen separation membranes are a key component of the emerging hydrogen economy. A potentially exciting material for membrane separations are bulk metallic glass materials due to their low cost, high elastic toughness and resistance to hydrogen ‘embrittlement’ as compared to crystalline Pd-based membrane systems. However, at elevated temperatures and extended operation times structural changes including partial crystallinity may appear in these amorphous metallic systems. A systematic evaluation of the impact of partial crystallinity/devitrification on the diffusion and solubility behavior in multi-component Metallic Glass materials would provide great insight into the potential of these materials for hydrogen applications. This study will report on the development of time and temperature crystallization mapping and their use for interpretation of ‘in-situ’ hydrogen permeation at elevated temperatures.
- Type
- Research Article
- Information
- MRS Online Proceedings Library (OPL) , Volume 1126: Symposium S – Solid-State Ionics–2008 , 2008 , 1126-S09-13
- Copyright
- Copyright © Materials Research Society 2009