Thermochimica Acta, Vol.438, No.1-2, 112-115, 2005
Heat capacity studies of phase transitions in K3Nb3O6(BO3)(2)
Heat capacity measurements of K3Nb3O6(BO3)(2), a borate that exhibits superionic conductivity and ferroelectric properties, have been performed in the 60-220 K temperature range. In this work, the presence of two heat capacity anomalies has been documented. The first anomaly occurs at 198.3 K and it has been attributed to a first-order phase transition. The second anomaly suggests presence of second-order phase transition at around 80 K. (C) 2005 Elsevier B.V. All rights reserved.