Abstract
NaNbO3 particles were synthesized via three different techniques: molten salt synthesis (MSS), conventional mixed-oxide route, and topochemical microcrystal conversion. X-ray diffraction reveals that NaNbO3 particles produced via MSS as well as mixed-oxide route have similar crystal symmetry, however, is different from the topochemical microcrystal conversion method. Field emission electron microscopy shows that NaNbO3 particles produced via three different techniques have different grain sizes and morphologies. Furthermore, their Raman spectral lines show different structural types for different methods. High dielectric constant and high Currie temperature were realized in NaNbO3 particles synthesized by mixed-oxide route as compared with MSS and topochemical microcrystal conversion methods.
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