The second semi-annual technical reports are collected from six subcontractors on an ARPA sponsored program on the very low temperature properties of structural materials in support of superconducting machinery. The program is outlined and research progress is reported. Low temperature data are presented for the elastic, tensile, fatigue, and fracture properties, thermal expansion, specific heat, thermal and magnetothermal conductivity, electrical and magnetic properties of structural alloys. Effects of processing, and fabrication are also reported for many of the properties; weld and braze joint properties are included. Low temperature properties for composites are reviewed and limited tensile and flexure data at 4K presented.

  • Supplemental Notes:
    • See also Reports No. 1, Sept 73-Mar 74, AD-780596/3; No. 3, Sept 74. Mar 75, AD-A012365/3ST; No. 4, MAR-Sept 75, AD-A019230/2ST; No. 5, Sept 75-Mar 76, AD-A030170/5ST; and No. 6, MAR-Sept 76, AD-A036919/9ST.
  • Corporate Authors:

    National Bureau of Standards

    Cryogenic Data Center
    Boulder, CO  United States 

    Department of Defense

    Advanced Research Projects Agency
    Arlington, VA  United States  22209
  • Authors:
    • Clark, A F
    • Reed, R P
    • van Reuth, E C
  • Publication Date: 1974-10

Media Info

  • Pagination: 787 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00182983
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: No. 2 Tech Rpt.
  • Contract Numbers: ARPA Order 2569
  • Files: TRIS
  • Created Date: Oct 31 1978 12:00AM