Ion implantation and spin quenching of superconducting materials. Technical progress report

Technical Report · Fri Jul 01 04:00:00 EDT 1983

DOI:https://doi.org/10.2172/5863504· OSTI ID:5863504

Clapp, M. T.

The work reported has focused on completing experiments on heavy dose implantations into substrates with an A-15 structure and on initiating experiments on melt spinning for forming new A-15 compounds and amorphous ribbons. The effect of ion implantation on metastable phase formation and superconducting transition temperature has been investigated. The particular alloys studied were Nb/sub 3/Al/sub 1-x/B/sub x/ and Nb/sub 3/Al/sub 1-x/C/sub x/. A-15 Nb/sub 3/Al was used as the substrate material, and large doses of B and C (up to 23 at. %) were implanted into Al depleted surfaces. Melt spinning was used to rapidly quench V/sub 2/CrAl/sub 1-x/B/sub x/ and Ti/sub 3/Nb/sub 6/Mo/sub 3/Si/sub 4/ alloys. Melt spinning had very little effect on the crystal structure of the V/sub 2/CrAl/sub 1-x/B/sub x/ alloys, but a new A-15 phase was found by rapid quenching of the Ti/sub 3/Nb/sub 6/Mo/sub 3/Si/sub 4/ alloys. (LEW)

• Research Organization: Massachusetts Univ., Amherst (USA). Dept. of Mechanical Engineering
• DOE Contract Number: AC02-80ER10566
• OSTI ID: 5863504
• Report Number(s): DOE/ER/10566-T2; ON: DE83017509
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
ALLOYS
ALUMINIUM ALLOYS
AMORPHOUS STATE
BORON ALLOYS
CARBON ADDITIONS
CHROMIUM ALLOYS
CRYSTAL STRUCTURE
ION IMPLANTATION
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NIOBIUM ALLOYS
PRODUCTION
SILICON ALLOYS
SUPERCONDUCTORS
TITANIUM ALLOYS
VANADIUM ALLOYS