Dielectric and pyroelectric properties of barium strontium calcium titanate ceramics

Effect of ionic radii on the Curie temperature in Ba1-x-ySrxCayTiO3 compounds

“…Figure 5 shows the T C as a function of in a large number of Ba 1-x-y Sr x Ca y TiO 3 with the tolerance factor greater than 1 reported in the literature over the last 60 years12204041424344454647484950515253545556575859. A strong linear correlation is observed with some scatter of data presumably due to compositional inhomogeneity (including partial substitution of Ca on B site52), annealing conditions5, thermal hysteresis during the measurements43, etc.…”

High Pyroelectric Properties of Porous Ba0.67Sr0.33TiO3 for Uncooled Infrared Detectors

“…The microstructure of the BST specimens was observed using scanning electron microscopy (SEM). The dielectric and pyroelectric properties with variation of temperature and dc bias field were measured using a dielectric and pyroelectric measurement system, and the testing method is discussed in previous works 16,17 …”

Lithium–germanium–phosphate glassceramic electrolytes: correlation between the nanocrystallization and electrical studies

“…Though, several routes were taking place to enhance ionic conductivity amorphous electrolyte materials, precipitation of nanocrystals in the glass and glassceramic materials via high-energy ball milling was regarded as highly efficient choice, where nanoscaled powders of electrodes directly mixed with electrolytes, leads to reduce the interfacial resistance and also surface modification under room temperature and normal pressure (Kang et al 2003;Xu and Gao 2004;Lam et al 2004;Dell et al 2007;Reddy et al 2012). Furthermore, it is also to be noted down that the uniform distribution of fine grains of nanocrystalline phases in the glass and glassceramic structure can significantly produce fast diffusion path ways and hence, desirable ionic conductivity is expected to achieve (Dell et al 2007;Reddy et al 2012).…”