Titanate compound particle fabrication using a liquid phase formed by laser heating

2016 Fiscal Year Final Research Report

• Project/Area Number: 26870908
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Material processing/Microstructural control engineering; Inorganic industrial materials
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: ISHIKAWA YOSHIE 国立研究開発法人産業技術総合研究所, ナノ材料研究部門, 主任研究員 (20509129)
• Co-Investigator(Renkei-kenkyūsha): KOSHIZAKI Naoto 北海道大学, 大学院工学研究院 量子理工学部門, 教授 (40344197)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: レーザープロセッシング / 液中レーザー溶融法

Outline of Final Research Achievements

Crystalline spheres of composite compound were obtained with a pulsed laser irradiation of a binary particle mixture dispersed in liquid. A chemical composition of formed composite compound by a laser irradiation of a mixture of TiO2 and MgCO3 was only MgTi2O5 even at any mixed composition ratio. Although TiO2 can melt by laser irradiation with 355 nm wavelength, MgCO3 remains as a solid state due to an optical transparency. In contrast, FeB and Fe2B formation occurred with a laser irradiation of mixture a-Fe2O3 and B4C, in which phase transitions to liquid phase of both a-Fe2O3 and B4C was necessary. Thus, a composite compound sphere formation mechanism depends on materials of raw particle mixture in this technique.

Free Research Field

材料化学