Lithium niobate tantalateSingle crystalsSolid-solutionsThermal conductivityLithium niobate tantalate (LiNb1?xTaxO3, LNT) solid solutions offer exciting new possibilities for applications ranging from optics, pi
Thus, here we report the electrical conductivity, activation enthalpy for charge transport, and thermal expansion of highly ordered Li3NbO4. Our aim is to provide additional data for proper evaluation of this material as a ceramic tritium breeder material, as well as a benchmark for future charac...
where Cp and K are the effective heat capacity and effective thermal conductivity of the cavity material, respectively. I represents the optical power that actually heats the cavity, and δλ is the mode linewidth of the cold cavity. The first term of Eq. (2) represents the heat generated ...
New values of the thermal conductivity, K of 119 rock-forming minerals reveal the following empirical relationships: (1) K is a linear function of density for constant mean atomic weight (similar to Birch's law for the velocity of compressional waves); (2) the K of silicates is controlled ...
Gao etc. Proposed the concept of average atomic volume (AAV) in open-framework compounds and considered that the compound may exhibits NZTE property when the value of AAV is close to the critical value of 16 Å3 [20,40]. Some niobate ceramics meet the requirements of AAV and exhibit NZTE...
Thermal conductivity, thermal diffusivity and specific heat of ceramic lanthanum modified lead zirconate titanate (PLZT), single crystal lithium tantalate (LiTaO3) and lithium niobate (LiNbO3) have been measured. Measurements were made over various temperature ranges (up to 400掳C). The techniques ...
We present an easy-to-implement method to determine quantitative values of the pyroelectric coefficient (d P s /d T ), its contribution to the thermal effect and other thermo-optical parameters like thermal diffusivity ( D ), thermal conductivity ( K ) and temperature coefficient of the ...
This final report describes measurements of the thermal conductivity of single crystal alumina from 1 to 70 K and the effect of electron irradiation, and of the thermal conductivity and ultrasonic attenuation of lithium niobate. Point defect scattering of phonons was also studied through lattice ...
This heat flow will be affected in part by the size of the cylindrical trench 13 separating the cylindrical disk 15 and the resonator 5, as well as by the thermal conductivity of the leveling material 30 in the cylindrical trench 13. It is presently thought to be preferable for the ...
Notably, tsub=the total thickness of the die substrate, comprising both the core and non-core portions; ksub=the thermal conductivity of the non-core portion of the substrate; Atran=the area of the active semiconductor devices (illustratively power transistors); xsub=the fraction of the total...