LADIR-CNRS
2, rue Henri Dunant,
94320 THIAIS
France
http://www.ladir.cnrs.fr/pagecolomban.htm
The mapped area (700x208 µm2, 300 spectra, magnification x100, 632 nm) of a textured PMN-PT piezoceramic for advanced SONAR at the beginning of the thermal treatment process shows the epitaxial growing around the crystal seeds. Composition value is obtained from the position of the center of gravity of the 800 cm-1 Nb-O stretching component. Note, due to the large lead content, no other method could easily give a view of such composition variation.
References
M. PHAM THI, G. MARCH, Ph. COLOMBAN
Phase Diagram and Raman Imaging of Grain Growth Mechanism
in Highly Textured Pb(Mg1/3Nb 1/3)O3-PbTiO3 Piezoelectric
Ceramics
J. Eur. Ceram. Soc. 25 [4] (2005) 3335-3346.
Ph. COLOMBAN, M. PHAM-THI
Raman Imaging and Thermal Expansion of Highly Textured Pb(Mg1/3Nb2/3)O3-PbTiO3
Piezoelectric Ceramics
Mater. Reas. Soc. Symp. Proc. vol 855E (2004) W3.1.1-6
Contact
Dr Philippe COLOMBAN for further information on +33 (0)149781105
E-mail: colomban@glvt-cnrs.fr
Dr Mai PHAM THI, Thals Research & Technology, France,
for further information on +33 (0)169415888
E-mail: mai.phamthi@thalesgroup.com
http://www.research.thalesgroup.com/New_materials_and_components/new_ceramic_materials/new_ceramic_materials.htm
 |
