Establishment of the Fabrication Method of Metallic Particles with Nano-rod Array Applied with Internal Oxidation

• Project/Area Number: 25630324
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Material processing/Microstructural control engineering
• Research Institution: Nagaoka University of Technology
• Principal Investigator: Nanko Makoto 長岡技術科学大学, 工学(系)研究科(研究院), 准教授 (90272666)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: ナノロッドアレイ / 内部酸化 / ニッケル / Ni粒子 / Al2O3 / NiAl2O4 / アルミナ

Outline of Final Research Achievements

The process to fabricate nano-rod array on Ni grains via aluminizing and internal oxidation and chemical polishing was developed. It is described that nano-rod array covered with nano-Ni parcels via reduction in NiAl2O4 nano-rods should be prepared by applying this process. However, continuous internal precipitates were formed in cases of usage in Ni grains. As ar result, surface of Ni grains with nano-rod array is partially obtained on the Ni grains. It is necessary to optimize aluminizing and oxidation conditions to fabricate nano-rod array surface on the Ni grains.