本論文利用醋酸鉛、正丙烷氧鋯、異丙烷氧鈦當作起始原料，以溶膠-凝膠法來製備鋯鈦酸鉛(PZT)溶液，並且將此溶液分別製得PZT粉末、塊材與薄膜。系統性的探討不同的粉末乾燥條件對於後段熱處理時相變行為的影響，並研究升溫速率和高分子添加劑對PZT薄膜微結構的影響。

在PZT粉末、塊材方面發現，在150oC/10小時乾燥條件下的L.T粉末含有較多的碳質材料，因此發生還原反應而導致鉛元素從PZT粉末中析出，進而降低PZT組成的均勻性和PZT鈣鈦礦的含量。

相對的，在研究中利用醋酸鉛裂解溫度當乾燥條件(300oC/1、10小時)，發現300oC裂解溫度乾燥下的粉末具有較高比例的PZT鈣鈦礦相，且具較低鈣鈦礦相形成能障(125 kJ/mol)，實驗結果亦發現鈣鈦礦相變的機構會因300oC裂解溫度乾燥下，由成核控制變成成長控制。由H.T 10粉末製得的PZT塊材可降低燒結燒溫度，且最佳的介電性發生於1000 oC 6小時燒結下，此時PZT塊材具有優良的介電常數(1080)和低介電損(0.7 %)。

在PZT薄膜方面發現，在無添加防裂劑下利用慢速升溫速率(1oC/分)通過低溫預熱區，可成功製得細晶、緻密、無裂紋、纯鈣鈦礦結晶的PZT薄膜。並發現不同升溫速率將導致不同微結構的PZT薄膜。

另外，若添加PVA溶液(含有PVA、甘油和水)當高分子添加劑後，藉由PVA溶液的幫助下，可成功地降低鈣鈦礦相的形成溫度至500 oC。並且發現PVA的螯合效應會造成特殊的圓形PZT核-殼團簇形成，其中核的成分是富鉛的，而殼的成分則是富鋯和鈦的。並且，此圓形狀PZT核-殼團簇可當作異質成核點以降低成核能障，使得添加PVA的多層PZT薄膜為細晶的微結構。

In this study, lead acetate、zirconium n-propoxide and titanium iso-propoxide were used as the precursors, and the PZT solution was successfully prepared by the sol-gel process. The PZT powders、bulks, and thin films were all derived from the PZT solution. Effects of drying conditions on the thermal behaviors during the post heat-treatment were discussed; the influences of the heating rate and the addition of PVA solution on the PZT films were also discussed.

In the section of PZT powders and bulks, the 150oC/10h drying condition made the PZT powders contain more carbonaceous materials, which caused the reduction reaction to form the Pb-partitioning. It reduced the homogeneity in composition and the PZT content.

On the other hand, the 300oC drying conditions made PZT powders contain higher PZT content, and lower perovskite formation energy barrier (125 kJ/mol) than L.T powders, besides that the 300oC drying condition changed the perovskite formation mechanism to growth-control reaction. The sintering temperature of the PZT ceramics fabricated by the H.T 10 powders can be reduced to 1100oC for 6h, and the superior dielectric constant (1080) and low dielectric loss (0.7 %) can be obtained.

In the section of PZT films, by the slow heating rate (1oC/min) during the pre-heating region, the fined-grain、dense、crack-free、completely crystallized perovskite PZT films were successfully obtained.

On the other hand, with the enhance of PVA solution (PVA、glycerol, and water), the perovskite formation temperature was successfully reduced to 500oC. The chelating effects of PVA solutions induced the special core-shell structured clusters, which contain Pb-rich core and Zr-, Ti-rich shell. The rounded clusters served as heterogeneous sites to reduce the nucleation barrier, and the crck-free、fined grain、multi-layer PZT films were thus obtained.

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