Development of TiB2-Al3Ti Composite of nano-sized TiB2 particles

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420739
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Composite materials/Surface and interface engineering
• Research Institution: Ube National College of Technology
• Principal Investigator: Yoshida Masashi 宇部工業高等専門学校, 機械工学科, 教授 (10370024)
• Co-Investigator(Kenkyū-buntansha): TOKUNAGA Hitoo 宇部工業高等専門学校, 機械工学科, 准教授 (70435460) ; TOKUNAGA Atushi 宇部工業高等専門学校, 機械工学科, 准教授 (20609797)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 複合材料 / 金属間化合物 / ビッカース硬度 / 曲げ強度

Outline of Final Research Achievements

It has been shown that AlTi-TiB2 composites in which sub-micron sized TiB2 particles are dispersed in AlTi matrix can be formed by the reaction sintering of AlTi2 intermetallic compound and boron powders at 1300C using spark plasma sintering method. It is important that AlTi2　intermetallic compound is formed before the addition of boron to suppress the grain growth of TiB2. It has also been shown that, by the sintering of TiB2 with the addition of (AlTi2+2B) mixed powder as sintering aid, AlTi-TiB2 composite with hardness as high as 2500Hv can be obtained.

Free Research Field

材料工学