Showing papers by "Carl C. Koch published in 2002"
Book•
01 Jan 2002
TL;DR: In this article, the authors describe the properties of two-phase nanostructured materials and their properties as well as their properties in the computer simulation of Nanomaterials.
Abstract: Processing. Chemical Synthesis and Processing of Nanostructure Powders and Films. Materials. Thermal Spray Processing of Nanocrystalline Materials. Nanostructure Materials and Composites Prepared by Solid State Processing. Nanocrystalline Powder Consolidation Methods. Electrodeposited Nanocrystalline Materials. Computer Simulation of Nanomaterials. Diffusion in Nanocrystalline Materials. Nanostructured Materials for Gas Reactive Applications. Magnetic Properties of Nanocrystalline Materials. Mechanical Properties of Nanocrystalline Materials. Structure, Formation, and Mechanical Behavior of Two-Phase Nanostructured Materials. Nanostructured Electronic and Optoelectronic Materials. restriction.h We do not have the North American/Canadian Rights
205 citations
TL;DR: In this paper, the authors systematically studied the effect of grain size and grain size distribution on plastic deformation in ultra-fine-grained (UFG) and nanocrystalline Zn.
102 citations
TL;DR: In this article, the deformation mechanism in ultrafine-grained Zn is believed to be a mixture of grain boundary sliding of small nanograins and intra-grain dislocation creep within the large grains.
Abstract: Tensile tests were performed for Zn at room temperature, which show elongations of 110%–20% for average grain sizes of 240–23 nm, respectively. The ductility of ultrafine-grained and nanocrystalline Zn was found to decrease with grain size refinement. The deformation mechanisms in ultrafine-grained Zn are believed to be a mixture of grain boundary sliding of small nanograins and intra-grain dislocation creep within the large grains.
68 citations
TL;DR: In situ consolidation of metal powders during MA may be a promising method to produce bulk ultrafine-grained (UFG) or nanostructured materials with full density and less contamination.
49 citations
TL;DR: In this article, a reaction-rate model was developed to account for the dynamic recrystallization effect and observed oscillations in hardness in nanocrystalline Zn materials.
41 citations
TL;DR: In this paper, the miniaturized disk bend test (MDBT) is used for the study of the mechanical properties of small specimens in tension, and the yield stress of cryomilled nanocrystalline Zn measured by MDBT shows periodic hardening and softening with milling time.
20 citations
2 citations
Book•
01 Jan 2002
TL;DR: In this paper, the authors provide a state-of-the-art overview of research results and technological developments in the field of metastable and nanocrystalline materials, and highlight the most recent achievements.
Abstract: This text deals mainly with the synthesis and processing of metastable and nanocrystalline materials. The subjects covered include mechanochemistry and the effect of mechanical attrition upon the chemical behaviour of solids, and encompass many classes of material including metals, polymers and ceramics. A significant fraction of the book also deals with with bulk metallic glasses - right from the fundamentals and theory of their mechanical properties, to their transformation kinetics and the development of processing techniques for improved practical applications. Another large part of the book covers the mechanical, electrochemical and magnetic properties of metastable and nanocrystalline materials. Overall, this publication provides a state-of-the-art overview of research results and technological developments in the field, and highlights the most recent achievements.
1 citations