Lithium-niobate ferroelectric material obtained by glass crystallization

Evolution of ferroelectric LiNbO3 phase in a reactive glass matrix (LiBO2–Nb2O5)

“…Recently, transparent LiNbO 3 glass-ceramics were fabricated in the crystallization of LiNbO 3 -SiO 2 -Al 2 O 3 glass system [15,16]. In all the processes, that were reported so far in the literature, either pre reacted LiNbO 3 or constituent oxides were taken in suitable ratios and recrystallized or allowed to react in glass matrices wherein it was difficult to exercise strict control over the crystallite size which is very crucial for obtaining transparent glass-ceramics especially in optically incompatible glass matrices.…”

Influence of thermal and thermoelectric treatments on structure and electric properties of B2O3–Li2O–Nb2O5 glasses

“…7). The decrease of the e 0 value (Table 1), with the increase of the heat treatment temperature, suggests that the LiNbO 3 crystals, that possess a e 0 > 1000 at room temperature and 1 kHz [32], are distributed in the glass network with a random orientation and thus their contribution to the dipolar moment is low. The TET samples (treated at 500°C) present a e 0 similar to that of the 500 HT sample indicating that, in this glass composition, the presence of an external electric field does not favor the LiNbO 3 crystallization with a preferred orientation [9,15].…”

Synthesis, structural and ferroelectric properties of barium titanate based glass-ceramic nano-composites

“…Further, only submicron particles or micron-sized particles can be obtained, and impurities may be introduced during their post-treatments, such as in the milling process [1]. The preparation of numerous ferroelectric materials by nanocrystallization of glass has been described in the literature [5][6][7][8][9]. This method has been applied for various ferroelectric crystals, such as BaTiO 3 , PbTiO 3 , NaNbO 3 , LiTaO 3 and LiNbO 3 .…”