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Defense Intelligence Reference Document Metallic Glasses For Aerospace Applications

Defense Intelligence Agency · 30 pages · text from the file's own layer

The Defense Intelligence Agency issued this Defense Intelligence Reference Document (DIA-08-0911-012), dated 14 December 2009, as one of its FY 2009 advanced technology reports under the Advanced Aerospace Weapon System Applications (AAWSA) Program. It reviews how metallic glasses are structured and processed, their mechanical properties, and metallic glass matrix composites. It concludes that dendritic composites could replace high-strength steels in some aerospace parts. It adds that wide aerospace use depends critically on developing new lightweight glass-forming alloys.

  • p. 8 …But crystallization takes time, so if the cooling is fast enough 1 it is possible to…
  • p. 10 …time (typically on the order of minutes) in which the processing must be completed if the…
  • p. 11 UNCLASSIFIED//f8A 8FFI&l.9.k MliiE 8tIL¥ and thus reduce the window of time available…
  • p. 12 …2, the strength of aluminum-based metallic glasses can be two or three times greater than…
  • p. 18 …26 A common misperception among those hearing about metallic glasses for the first time is to…
  • p. 20 …31 By suitably choosing alloy composition, holding time, and temperature, the volume fraction, size, and spacing…
  • p. 22 …The fatigue strength of the zirconium-based in situ composites is 20-30 percent of the…
14 December 2009
ICOD: 1 December 2009
DIA-08-0911-012
UNCLASSIFIED/( PIHi 8PPl81AL ~91!! 8ULY
Defense
Intelligence
Reference
Document
Acquisition Threat Support
Metallic Glasses: Status and
Prospects for Aerospace
Applications
UNCLASSIFIED//&iQA QFF1'2I,k W&li 8fllit

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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 30 pages are in the text index: search them above, or from the library's search.