Temperature dependence of full set tensor properties of KTiOPO4 single crystal measured from one sample

Abstract

The temperature dependence of the complete set of elastic, dielectric, and piezoelectric constants of KTiOPO 4 single crystal has been measured from 20 C to 150 C. All 17 independent constants for the mm2 symmetry piezoelectric crystal were measured from one sample using extended resonance ultrasound spectroscopy (RUS), which guaranteed the self-consistency of the matrix data. The unique characteristics of the RUS method allowed the accomplishment of such a challenging task, which could not be done by any other existing methods. It was found that the elastic constants (c E 11 , c E 13 , c E 22 , and c E 33) and piezoelectric constants (d 15 , d 24 , and d 32) strongly depend on temperature, while other constants are only weakly temperature dependent in this temperature range. These as-grown single domain data allowed us to calculate the orientation dependence of elastic, dielectric, and piezoelectric properties of KTiOPO 4 , which are useful for finding the optimum cut for particular applications.

Determination of temperature dependence of full matrix material constants of PZT-8 piezoceramics using only one sample

“…$c_{11}^E,c_{44}^E$ and $c_{66}^E$ were subsequently calculated from the velocities and the measured density. The RUS setup and the related details for experiments had been reported in our previous study[16]. The DRS 9000 system (Dynamic Resonance Systems, Inc.) was used to measure the resonance frequency spectrum in a furnace (KSL 1100X) from 25 °C to 100°C with a thermocouple placed near the sample to detect temperature.…”

Analysis of SAW Temperature Properties in KTiOPO4 Single Crystal

“…Recently, the temperature dependence of the piezoelectric constants of KTP was determined with the use of single sample by the method of resonant ultrasound spectroscopy (RUS) [44]. It utilizes a wide resonance spectrum of bulk acoustic eigen modes excited in one cubic sample, containing all the necessary information on KTP material constants.…”

Temperature Characteristic of the Frequencies of the KTP Crystal

“…Диэлектрические, пьезоэлектрические и упругие свойства были исследованы при комнатной температуре методом резонанса-антирезонанса, результат приводится в работе [1]. Температурная зависимость этих свойств в широком диапазоне температур (от 20 0 С-150 0 С) была исследована методом ультразвуковой спектроскопии, результат описан в работе [2]. Но диапазон температур, при котором пьезоэффект максимален, в литературе не описан.…”

“…Кристаллы KTP (KTiOPO4) принадлежат к точечной группе mm2 [1,2], их пьезоэлектрическая матрица содержит 5 пьезомодулей, 9 упругих коэффициентов и 3 диэлектрические постоянные. Исследовались пьезосвойства кристалла в температурном диапазоне от -10 o C до +50 0 C. Диэлектрическая постоянная предварительно измерялась при низких частотах при комнатой температуре.…”