scholarly journals STRUCTURAL INTERACTIONS OF HYDROGEN WITH BULK AMORPHOUS MICROSTRUCTURES IN METALLIC SYSTEMS UNDERSTANDING THE ROLE OF PARTIAL CRYSTALLINITY ON PERMEATION AND EMBRITTLEMENT

2010 ◽  
Author(s):  
Kyle Brinkman ◽  
Elise Fox ◽  
Paul Korinko ◽  
Thad Adams
Keyword(s):  
Structural Interactions ◽  
Partial Crystallinity ◽  
Metallic Systems

scholarly journals Exploring the Nature of Desmosomal Cadherin Associations in 3D

2010 ◽  
Vol 2010 ◽  
pp. 1-12 ◽  
Author(s):  
Gethin R. Owen ◽  
David L. Stokes
Keyword(s):  
Electron Tomography ◽  
Three Dimensional ◽  
Direct Consequence ◽  
Desmosomal Cadherins ◽  
Protein Molecules ◽  
Structural Interactions ◽  
Structural Differences ◽  
Physical Principles ◽  
Insight Into

Desmosomes are a complex assembly of protein molecules that mediate adhesion between adjacent cells. Desmosome composition is well established and spatial relationships between components have been identified. Intercellular cell-cell adhesion is created by the interaction of extracellular domains of desmosomal cadherins, namely, desmocollins and desmogleins. High-resolution methods have provided insight into the structural interactions between cadherins. However, there is a lack of understanding about the architecture of the intact desmosomes and the physical principles behind their adhesive strength are unclear. Electron Tomography (ET) studies have offered three-dimensional visual data of desmosomal cadherin associations at molecular resolution. This review discusses the merits of two cadherin association models represented using ET. We discuss the possible role of sample preparation on the structural differences seen between models and the possibility of adaptive changes in the structure as a direct consequence of mechanical stress and stratification.

The role of partial crystallinity on hydrogen permeation in Fe–Ni–B–Mo based metallic glass membranes

2011 ◽  
Vol 378 (1-2) ◽  
pp. 301-307 ◽  
Author(s):  
Kyle Brinkman ◽  
Elise Fox ◽  
Paul Korinko ◽  
David Missimer ◽  
Thad Adams ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Hydrogen Permeation ◽  
Partial Crystallinity ◽  
Glass Membranes

The Effects of Partial Crystallinity on the Hydrogen Permeation Properties in Amorphous Metallic Systems

2008 ◽  
Vol 1126 ◽  
Author(s):  
Kyle S. Brinkman ◽  
Elise B Fox ◽  
Paul Korinko ◽  
Thad Adams ◽  
Arthur Jurgensen
Keyword(s):  
Metallic Glass ◽  
Structural Changes ◽  
Elevated Temperatures ◽  
Hydrogen Permeation ◽  
Low Cost ◽  
Systematic Evaluation ◽  
Solubility Behavior ◽  
Partial Crystallinity ◽  
The Impact ◽  
Metallic Systems

AbstractIt 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.

The role of intermetallics in wetting in metallic systems

2001 ◽  
Vol 45 (12) ◽  
pp. 1439-1445 ◽  
Author(s):  
Pavel Protsenko ◽  
Anne Terlain ◽  
Vladimir Traskine ◽  
Nicolas Eustathopoulos
Keyword(s):  
Metallic Systems
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