Fabrication of superconducting nanocrystal alloy using metallic glass precursor

2014 Fiscal Year Final Research Report

• Project/Area Number: 24510155
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials/Nanobioscience
• Research Institution: University of Hyogo
• Principal Investigator: OKAI Daisuke 兵庫県立大学, 工学(系)研究科(研究院), 助教 (60336831)
• Co-Investigator(Kenkyū-buntansha): MOTOYAMA Gaku 島根大学, 理工学研究科, 准教授 (20360050)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: ナノ結晶合金 / 超電導合金 / アモルファス合金 / 金属ガラス

Outline of Final Research Achievements

Fabrication of (Zr,Ti)-Nb based nanocrystal alloys were performed. The (Zr,Ti)-Nb based nanocrystal alloys were fabricated by annealing of (Zr,Ti)-Nb based precursors, which were prepared using rapid quench technique. For preparing of the precursor, the Zr-Nb-Al-Co and Zr-Nb-Al-Co-Ti superconducting precursors with nanoparticles dispersed in amorphous matrix were obtained. The Zr-Nb-Al-Co-Ti nanocrystalline alloys with full nanocrystal structure were fabricated by annealing of the precursor. The Zr55Nb15Al15Co9Ti6 nanocrystal alloys exhibited superconductivity blow approximately 5K. The Tc of Zr55Nb20Al15Co10 superconducting nanocrystal alloy was approximately 8K.

Free Research Field

工学