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SUPERCONDUCTIVITY OF THE Al5 ALLOYS
PHASE STABILITY OF THE Al5 ALLOYS
EXPERIMENTAL PROCEDURES FOR FILM DEPOSITION
2 other sections not shown
300°C substrates Al5 alloys Al5 compounds Al5 material Al5 phase annealed annealed films approximately argon as-quenched bulk basic bcc phase binary films bombarding ions bulk samples considerable constant and Tc crystal structure curve decrease determine diffraction lines disorder effects electron microprobe elements energies equilibrium evaporation experimental fast quenching film composition film deposition techniques film techniques gaseous impurities Gavaler getter H. L. Luo heated substrates high temperature highest Tc increase indicated investigation Kammerdiner lattice constant lattice constant values low temperature measured metastable metastable phase Nb-Al films Nb-In Nb-Pb Nb-Sn Nb-Tl Nb^Al Nb^Ga Nb^Ge Nb^In Nb^Pb Nb^Si Nb^Tl Nb^X Nb3In Niobium observed periodic table phase diagram Phys possible pure Nb films ratio result San Diego shown in figure sputtered particles sputtering stability sticking coefficients stoichiometric substrate temperature superconducting Tc values Tc versus temperature substrates ternary alloys ternary films Transmission electron microscope variation x-ray diffraction