ISOTHERMAL DSC STUDY OF THE HIGH-TEMPERATURE PHASE-TRANSITION IN LINH4SO4

Authors
RAO YS SUNANDANA CS
Citation
Ys. Rao et Cs. Sunandana, ISOTHERMAL DSC STUDY OF THE HIGH-TEMPERATURE PHASE-TRANSITION IN LINH4SO4, Solid state communications, 90(7), 1994, pp. 461-464
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
90
Issue
7
Year of publication
1994
Pages
461 - 464
Database
ISI
SICI code
0038-1098(1994)90:7<461:IDSOTH>2.0.ZU;2-R
Abstract
The ferroelectric-to-paraelectric phase transition at 186.5-degrees-C, in LiNH4SO4 and its ammonium rich phase is studied through isothermal DSC experiment. Instead of a usual kinetic peak, we have observed ran dom, rapid fluctuations in power output in the vicinity of the phase t ransition, 181-204-degrees-C. These results, which are reproducible on several samples and several times, are compared with those on the 438 -degrees-C phase transition in LiKSO4 (where the effect is absent), an d discussed.