Creating bulk nanocrystalline metal.

Technical Report · Wed Oct 01 04:00:00 EDT 2008

DOI:https://doi.org/10.2172/943321· OSTI ID:943321

Fredenburg, D Anthony ^[1]; Saldana, Christopher J ^[2]; Gill, David D; Hall, Aaron Christopher; Roemer, Timothy John ^[3]; Vogler, Tracy John; Yang, Pin

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1. Georgia Institute of Technology, Atlanta, GA
2. Purdue University, West Lafayette, IN
3. Ktech Corporation, Albuquerque, NM

Nanocrystalline and nanostructured materials offer unique microstructure-dependent properties that are superior to coarse-grained materials. These materials have been shown to have very high hardness, strength, and wear resistance. However, most current methods of producing nanostructured materials in weapons-relevant materials create powdered metal that must be consolidated into bulk form to be useful. Conventional consolidation methods are not appropriate due to the need to maintain the nanocrystalline structure. This research investigated new ways of creating nanocrystalline material, new methods of consolidating nanocrystalline material, and an analysis of these different methods of creation and consolidation to evaluate their applicability to mesoscale weapons applications where part features are often under 100 {micro}m wide and the material's microstructure must be very small to give homogeneous properties across the feature.

• Research Organization: Sandia National Laboratories
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 943321
• Report Number(s): SAND2008-6547
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
COMPACTING
CRYSTALS
FABRICATION
METALS
Materials-Analysis.
Mesoscale-materials
NANOSTRUCTURES
Nanocrystals.
Nanostructure materials.
WEAPONS