在光電材料中，鍶鋇鈮單晶因其具有很高的線性光電係數、高的焦電係數以及良好的光折射效應 (photorefractive effect) ，故已有部分應用在工業上。儘管鍶鋇鈮單晶的成長技術及其性質已廣泛被研究，但因價格與製造上的困難故應用上有其限制所在，因此開發鍶鋇鈮多晶陶瓷乃必然趨勢。
本實驗在鍶鋇鈮陶瓷中共添加Ce2O3、Cr2O3，探討其燒結行為及顯微結構。在單獨添加Ce2O3時，由於Ce離子取代部分Sr、Ba離子占據在A位置，產生電荷補償機制為Nb離子空缺，因此使得緻密化速率上升。然而共添加Ce2O3、Cr2O3 時，緻密化速率先在0.5%添加量時快速上升，而後隨著添加量下降。顯微結構方面在單獨添加Ce2O3時產生嚴重的異常晶粒成長，而在共同添加後晶粒成長的現象被抑制了。

In photoelectric materials,strontium barium niobate ( SBN ) ceramic has very high linear electro-optical coefficient、 high pyroelectric coefficient and good photorefractive effect. Though the properties of the single crystal,SBN, has been intensively studied, high cost and difficult fabrication have limited its practical use. Hence,it is necessary to develop strontium barium niobate ceramic.

SBN co-doped Ce2O3 、Cr2O3 is investigated into the sintering behavior and the microstructure. SBN doped Ce2O3 produces the charge compensation due to the Ce ions which replace a part of Sr、Ba ions in the B site. The charge compensation defect is Nb ion vacancy and cause the densification rate increasing .When SBN co-doped Ce2O3 、Cr2O3, the densification rate is increased at 0.5 mole% additive and decreased with more additive. Discontinuous grain growth occurs when SBN only doped Ce2O3 ,and grain growth is inhibited when SBN co-doped Ce2O3 、Cr2O3 .

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