| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Manufacturing and Processing of Advanced Ceramic Materials
|
| Presentation Title |
Preparation of BaTiO3 Composites by Cold Sintering Process |
| Author(s) |
Takashi Nunokawa, Clive A Randall |
| On-Site Speaker (Planned) |
Takashi Nunokawa |
| Abstract Scope |
Cold sintering process (CSP) has attracted much attention because of sintering various ceramics in the low temperature. In particular, barium titanate (BaTiO3) has been used for multi-layer ceramic capacitors. In the conventional sintering, BaTiO3 is sintered at temperature more than 1000 ˚C. Therefore, we investigated about preparation process of BaTiO3 sintered body by CSP. As a procedure, after mixing homogenously BaTiO3 powder with flux, we densify the powder below 300 ˚C, under uniaxial pressure of 350 MPa with a transient phase. As a result, we obtained the sintered body of the relative density more than 90 %. In this study we will consider the microstructural -processing- property relations for the cold sintered BaTiO3, we are particularly interested in the crystal structure of the ferroelectric phase, and electrical properties as a function of temperature and applied field within pure BaTiO3 and in composite forms with mixing polymer in the grain boundaries. |
| Proceedings Inclusion? |
Planned: At-meeting proceedings |