Figure 2 | Scientific Reports

Figure 2

From: Suppression of abnormal grain growth in K0.5Na0.5NbO3: phase transitions and compatibility

Figure 2

Origin of abnormal grain growth. (a–h) Scanning electron microscopy analysis of the powder batches from Fig. 1(a,b) and resulting sintered bulk ceramics at different magnifications. (a,b) Powder batches right before sintering. (c–h) Resulting KNN and KNNex bulk ceramics respectively. (i) Dynamic light scattering (DLS) measurement of KNN and KNNex powder batches right before sintering. The KNN powder shows a bimodal grain size distribution, while KNNex exhibits a monomodal distribution.

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