caa a22 4500 463225945 CHVBK 20180405153227.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s10853-007-1907-0 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1907-0 Dielectric and thermal characteristics of gel grown single crystals of ytterbium tartrate trihydrate [Elektronische Daten] [Basharat Want, Farooq Ahmad, P. Kotru] Dielectric and thermal characteristics of gel grown single crystals of ytterbium tartrate trihydrate have been carried out. The dielectric constant has been measured as a function of frequency in the range 2kHz-1MHz and temperature range 30-300°C. The dielectric constant increases with temperature, attains a peak near 215°C, and then decreases as the temperature exceeds 215°C. The dielectric anomaly at 215°C is suggested to be due to phase transition brought about in the material. The dielectric behaviour of the material is correlated with the results on thermal analysis. Thermogravimetric and differential thermal analysis have been used to study the thermal characteristics of the material. The experimental results show that the material is thermally stable up to 200°C. The decomposition process occurs in two stages until ytterbium oxide is formed at 700°C. The non-isothermal kinetic parameters e.g., activation energy and the frequency factor have been evaluated for each stage of thermal decomposition by using the integral method, applying the Coats-Redfern approximation. Springer Science+Business Media, LLC, 2007 Want Basharat Department of Physics, University of Kashmir, 190006, Srinagar, Jammu & Kashmir, India aut Ahmad Farooq Department of Physics, University of Kashmir, 190006, Srinagar, Jammu & Kashmir, India aut Kotru P. Department of Physics and Electronics, University of Jammu, 180006, Jammu, India aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/22(2007-11-01), 9324-9330 0022-2461 42:22<9324 2007 42 10853 https://doi.org/10.1007/s10853-007-1907-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1907-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Want Basharat Department of Physics, University of Kashmir, 190006, Srinagar, Jammu & Kashmir, India aut NATIONALLICENCE 700 1- Ahmad Farooq Department of Physics, University of Kashmir, 190006, Srinagar, Jammu & Kashmir, India aut NATIONALLICENCE 700 1- Kotru P. Department of Physics and Electronics, University of Jammu, 180006, Jammu, India aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/22(2007-11-01), 9324-9330 0022-2461 42:22<9324 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer