Growth and study of single crystals of (Na, K)NbO3 solid solutions

Structural and Dielectric Studies of NaNbO3-A0.5Bi0.5TiO3(A-Li,Na,K) Solid Solutions

“…On the contrary, for compositions in the x < x 0 range T m decreases when the third ferroelectric component is added to the binary group II solid solution. Such behavior is typical for antiferroelectrics doped with ferroelectric and was observed for example in NaNbO 3 -KNbO 3 and NaNbO 3 -LiNbO 3 solid solution systems [9][10][11]. Figure 6 shows the T m (x) dependences for all solid solution systems studied.…”

“…1, 3(a), 4(a)). It is quite unusual for the group I NaNbO 3 -based solid solutions in which addition of ferroelectric component to NaNbO 3 leads to a sharpening of the ε(T) curves [9][10][11]. Moreover, the compositional evolution of the structural parameters for both (100-x)NaNbO 3 -(x) A 0.5 Bi 0.5 TiO 3 (A-Li, K) systems is also very similar to that observed for (100-x)NaNbO 3 -(x)Na 0.5 Bi 0.5 TiO 3 (Figs.…”

Growth of potassium sodium niobate single crystals by solid state crystal growth

“…The composition of the single crystal can therefore be controlled by controlling the composition of the starting powder. By using solid stage crystal growth, we can avoid the difficulties associated with growing single crystals with high KNbO 3 content by the flux method [2,9]. SAED patterns taken throughout the thickness of the single crystal are all in the same [1 1 0] zone axis (Fig.…”

“…Ahtee and Glazer [8] grew single crystals containing up to 25 mol% KNbO 3 using NaF as a flux. Raevskiı˘et al [9] grew single crystals containing up to 40 mol% KNbO 3 using NaBO 2 as a flux. In these studies, compositional variations within individual crystals [8] and difficulty in growing crystals with high KNbO 3 contents [2,8] were encountered.…”

Growth behaviour of potassium sodium niobate single crystals grown by solid-state crystal growth using K4CuNb8O23 as a sintering aid

“…Single crystals of (K 1−x Na x )NbO 3 have been grown by the flux method. [8][9][10][11] Difficulties were experienced by several workers in growing crystals with high K contents, but recently crystals with a composition of (K 0.47 Na 0.53 )NbO 3 were grown using a KF/NaF flux. 11 Single crystals of (K 0.5 Na 0.5 )NbO 3 and Li/Ta-substituted (K 0.5 Na 0.5 )NbO 3 have recently been grown by the solid-state crystal growth method.…”