Composition and Homogeneity of Nb2O5〈В〉 Solid Precursors and LiNbO3〈В〉 Batches

Nb2O5〈В〉 solid precursors and LiNbO3〈В〉 batches prepared on their basis, which can be used for preparing optical-quality lithium niobate single crystals and pore-free piezoelectric ceramics, have been studied by laser ablation inductively coupled mass spectrometry (LA-ICP-MS). The compositions of powdery samples pelletized without binder have been determined. The calculated mean-square deviations Sr of laser ablation ICP-MS have been used to show a homogeneous distribution of the boron dopant over Nb2O5〈В〉 precursors and LiNbO3〈В〉 batches.