caa a22 4500 467954518 CHVBK 20180322200727.0 cr unu---uuuuu 170328e19861101xx s 000 0 eng 10.1007/BF00553449 doi (NATIONALLICENCE)springer-10.1007/BF00553449 (NATIONALLICENCE)springer-10.1007/BF02431632 Characterization and thermal behaviour of gel grown mixed rare-earth (Didymium) tartrate crystals [Elektronische Daten] [P. Kotru, K. Raina, M. Koul] Sherulites, crystal aggregates and platelets of Di2 (C4H4O6)3 · 5H2O mixed crystals were grown in gel using the single tube diffusion method. The material was characterized by using different techniques such as chemical analysis, EDAX, X-ray and electron diffraction, infrared and mass spectroscopy. The thermal behaviour of the material was studied using differential thermal analysis, DTG, thermogravimetric analysis and differential scanning calorimetry. The material is thermally unstable and starts decomposing at 50‡ C. Thermal analysis results indicate the application of the contracting cylindrical kinetic model for the solid state reactions involved in the decomposition process. The values of kinetic parameters, e.g. order of reaction, activation energy and frequency factor are worked out. The implications are discussed. Chapman and Hall Ltd., 1986 Kotru P. Department of Physics, University of Jammu, 180001, Jammu, India aut Raina K. Department of Physics, University of Jammu, 180001, Jammu, India aut Koul M. Department of Physics, University of Jammu, 180001, Jammu, India aut Journal of Materials Science Kluwer Academic Publishers 21/11(1986-11-01), 3933-3940 0022-2461 21:11<3933 1986 21 10853 https://doi.org/10.1007/BF00553449 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00553449 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kotru P. Department of Physics, University of Jammu, 180001, Jammu, India aut NATIONALLICENCE 700 1- Raina K. Department of Physics, University of Jammu, 180001, Jammu, India aut NATIONALLICENCE 700 1- Koul M. Department of Physics, University of Jammu, 180001, Jammu, India aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers 21/11(1986-11-01), 3933-3940 0022-2461 21:11<3933 1986 21 10853 NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02431632 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 463581121 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer