Fabrication of barium titanate based ferroelectrics with the high-Tc and the high-Ps

2015 Fiscal Year Final Research Report

• Project/Area Number: 25790048
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Crystal engineering
• Research Institution: Hiroshima University
• Principal Investigator: Magome Eisuke 広島大学, 理学(系)研究科(研究院), 助教 (40408696)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 無容器法 / 強誘電体材料 / 高温実験 / 放射光回折実験

Outline of Final Research Achievements

Fabrication of barium titanate based ferroelectrics with the high-Tc and the high-Ps by the containerless processing was performed. We developed the aerodynamic levitation furnace which enables us to levitate and melt a sample about 1-3 mm in diameter in containerless condition. A new technique to observe the temperature dependence of crystal structures in the high temperature region was developed. Aerodynamic levitation furnace for structural study of high temperature crystals has been installed in the X-ray diffractometer at the SAGA Light Source. The lattice parameters and the expansion coefficients of Al2O3 in the high temperature region was revealed.

Free Research Field

構想物性