Phase Transformations and Nano/Micro-Structure Changes under Various Conditions

YAMANAKA, Junji Associate Professor

Information | Lab. HP

Our team is studying phase transformations and nano-/micro-structure changes under various conditions.

Research subjects

Cross-sectional high-resolution transmission electron micrograph of furan-resin-derived carbon after thermal treatment of 3000 ℃.

1. Surface Graphitization of Furan-Resin Derived Carbon

We study microstructure of furan-resin-derived carbon which is important as a matrix material of c/c composites.The figure shows that the surface layer, which is about 20 nm thick, is graphite, but the inner part of the material has a cage-like structure.
(Corroborative work with researchers who used to belong to Tokyo Institute of Technology)

2. State Analyses of Multiple-Phase Materials

We are studying state analyses of nano-areas in inorganic materials using transmission electron microscopy and other techniques.

3. Lattice Defects of Laser Irradiated Metals and Semiconductors.

We are studying laser induced lattice defects.
(Corroborative work with researchers of McMaster University)