Synthesis, characterization and thermodynamic properties of KNbO3

Crystal structure and properties of perovskite-type rubidium niobate, a high-pressure phase of RbNbO3

“…In contrast, the second peak above 582 K, corresponding to the Tetra1–Tetra2 transition, indicated a Δ H of 3350 J mol −1 , approximately seven times larger than the first transition. This aligns with the observed substantial volume change and is significantly higher than the tetragonal-to-cubic transition in KNbO 3 , 26 as listed in Table 4. No reversible thermal peaks corresponding to these phase transitions were observed.…”

The phase structure, thermodynamic properties, and dissolution behavior of Ca5Mg4V6O24

“…Molar heat capacity is a fundamental thermal property of the matter, which can be considered the sum of the various energy contributions, such as lattice, electron, and magnetism 36–38 . The molar heat capacity at high temperature ( T > ∼15 K) is referred to phonon heat capacity due to lattice vibrations being dominant.…”

“…Molar heat capacity is a fundamental thermal property of the matter, which can be considered the sum of the various energy contributions, such as lattice, electron, and magnetism. [36][37][38] The molar heat capacity at high temperature (T > ∼15 K) is referred to phonon heat capacity due to lattice vibrations being dominant. However, at low temperature (T < ∼15 K), the contribution from lattice vibration is similar to that of electronic and magnetic contributions.…”

Exploring Electro‐Thermal Interconversion in Oxide Superlattices Across Polarization Behavior Transition

“…[30] The heat capacity of BFO, KNO, PZT0.8, STO and KTO are taken from existing results with appropriate approximations for PZT0.8. [31][32][33][34][35] superlattices starting from 300 K with various temperature differences, respectively. In good agreement with parameterized pyroelectric evaluations, the results confirmed the excellent pyroelectric energy conversion ability of KNO/KTO.…”