Transitions of crystalline 1,3,5-trichloro-2,4,6-trimethylbenzene by thermally stimulated current

Author

Bennis, Amina ; Hitmi, Najia ; Lamure, Alain ; Lacabanne, Colette

Author_Institution

Lab. de Phys. des Mater., Univ. Mohamed V, Rabat, Morocco

fYear

1994

fDate

7-9 Sep 1994

Firstpage

478

Lastpage

481

Abstract

The present paper reports the results of thermally stimulated current TSC spectroscopy on 1,3,5-trichloro-2,4,6-trimethylbenzene (TCTMB). We have investigated the relaxation phenomena between liquid nitrogen temperature and 80°C covering the two stable solid phases III and IV. The phase behaviour of TCTMB is very complicated because the phase transitions are dependent both on temperature and on time in addition to the thermal history of the specimen. A series of TSC complex spectra corresponding to different thermal history has been performed. Results are discussed in relation to the corresponding structure as determined by X-ray diffraction and are compared with differential scanning calorimetry data reported in the literature

Keywords

X-ray diffraction; crystal structure; dielectric relaxation; electrets; organic compounds; solid-state phase transformations; thermal analysis; thermally stimulated currents; X-ray diffraction; crystalline 1,3,5-trichloro-2,4,6-trimethylbenzene; differential scanning calorimetry; phase transitions; relaxation phenomena; thermal history; thermally stimulated current; Annealing; Calorimetry; History; Nitrogen; Polarization; Raman scattering; Solids; Spectroscopy; Temperature dependence; X-ray diffraction;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1994. (ISE 8), 8th International Symposium on

Conference_Location

Paris

Print_ISBN

0-7803-1940-0

Type

conf

DOI

10.1109/ISE.1994.514816

Filename

514816