奈米鈮酸鋰粉體可經由燃燒法以硝酸鋰、草酸銨鈮與甘胺酸為原料，經600 oC煆燒熱處理後成功的合成。鈮酸鋰晶體的熱分析、晶體結構、晶體鍵結、表面形貌與介電性質將由視差與熱重分析儀、X光繞射、拉曼光譜、掃描與穿透式電子顯微鏡及多功能電表來得到。
經由熱分析結果，顯示鈮酸鋰晶體的結晶化溫度為580 oC，所合成的鈮酸鋰晶體晶粒尺寸約為29–38 nm，在Ψ值為2的時候具有最小的晶粒尺寸，Ψ值為3則具有最高的結晶強度。當煆燒溫度為900 oC，部分鈮酸鋰晶體出現Li3NbO4 and LiNb3O8的二次相，只有鋰含量佔金屬離子總量40~43%時，才能在高溫中保持純相鈮酸鋰結構。
43Li-LN鈮酸鋰晶體內的結構主要靠著鋰離子的移動造成O-Nb-O與O-Li-O鍵角的改變引發NbO6支架的鍵長伸縮來產生相分離現象，在接近熔融狀態降溫後，其表面形成的微細方晶體，晶體內部鍵結亦回復成原先的型態。43Li-LN鈮酸鋰的介電常數在燒結溫度低於1000oC時常現正相關性，但隨著燒結溫度高於1000oC後，由於晶界的減少與裂縫的形成使得介電常數隨燒結溫度的上升而下降，介電損失的降低是來自晶體內的缺陷因相分離而減少。

Lithnium niobate (LiNbO3) can be obtained by mixing lithium nitrate (LiNO3), ammonium niobate oxalate hydrate (C4H4NNbO9) and glycine and then calcining at 600oC for 1 h. The thermal analysis, structure, morphology, and dielectric property of the as-prepared LiNbO3 were characterized by thermogravimetric and differential thermal analyses (TG/DTA), X-ray diffraction (XRD) , Raman spectra, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and multimeter. The crystallization temperature of LiNbO3 precursor is 580 oC based on the TG/DTA results. After being calcined at 600oC, the structure of the LiNbO3 synthesized using various ratios of glycine to metal nitrates (Ψ-value) was formed with a particle size of about 29–38 nm, as found by XRD analysis. The crystal size has the lowest value at Ψ= 2, and the highest level of crystallization is at Ψ= 3.When the calcination temperature reached 900 oC, the secondary phases Li3NbO4 and LiNb3O8 were observed. The lithium concentration before 900oC was 40–43%. When the calcination temperature was higher than 900oC, the major Li0.91NbO3 phase and the minor LiNbO3 phase coexisted in the nonstoichiometric lithium niobate with 43% lithium content.
After sintering at 1100oC, the structure of the Li0.43Nb0.57O3+δ was similar to the single crystal of lithium niobate. The thermal vibration of the elements caused the bond length of the NbO6 framework and angle bending of the O-Nb-O to increase, and the structure was restored by the formation of square crystals in the quasi-melting Li0.43Nb0.57O3+δ matrix. The dielectric constant increased with the increasing sintering temperature before 1000 oC, and then fell due the formation of split seam . The reduction in defects forming from the Li-site vacancies lowered the dissipation factor at higher sintering temperatures.

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