Results of six months research are reported. Subjects include magneto-thermal conductivity, thermal conductivity, composites, elastic properties, fracture toughness, fatigue, and tensile. All measurements include the temperature range 4 to 300k. Materials examined are those either presently being used in superconducting machinery or considered for use in future prototypes. Material classes include stainless steels, inconels, titanium alloys, and composites. Special results include; the thermal conductivity in a magnetic field is considerably lower than would be predicted; a comprehensive review of glass-reinforced composite behavior at low temperatures is included; the elastic moduli for 12 engineering alloys from 4 to 300K are reported; and fracture toughness and fatigue crack growth rate data on AISI 304, AISI 316, A286, Ti--5AL--4V and Ti--6AL--2.5Sn at 4, 76 and 300K have been measured.

  • Supplemental Notes:
    • See also Reports No. 2, Mar-Sept 74, AD/A-004586/4ST; No. 3, Sept 74-Mar 75, AD-A012365/3ST; No. 4, Mar-Sept 75, AD-A019230/2ST; No. 5, Sept 75-Mar 76, AD-A0301705ST; and No. 6, Mar-Sept 76, AD-A036919/9T.
  • Corporate Authors:

    National Bureau of Standards

    Cryogenic Data Center
    Boulder, CO  United States 
  • Publication Date: 1974-3

Media Info

  • Pagination: 567 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00182984
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: No. 1 Tech Rpt.7
  • Contract Numbers: ARPA Order-2569
  • Files: TRIS
  • Created Date: Oct 31 1978 12:00AM