Effects of ZnO-B2O3 Addition on the Microstructure and Microwave Properties of Low-Temperature Sintered Barium Strontium Titanate (BST) Thick Films
Effects of ZnO-B2O3 Addition on the Microstructure and Microwave Properties of Low-Temperature Sintered Barium Strontium Titanate (BST) Thick Films
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DOI：
10.1111/ijac.12116
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发表时间：
2013-09-01
影响因子：
2.1
通讯作者：
Kuebel, Christian
中科院分区：
文献类型：
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作者：
Kohler, Christian;Friederich, Andreas;Kuebel, Christian
人们对 BST-ZnO-B2O3 复合厚膜作为低温烧结可调谐微波电介质的适用性进行了研究。研究表明，少量的 ZnO-B2O3 添加剂就可以将烧结温度显着降低至 900 摄氏度。厚膜的微观结构研究表明，高添加量时会形成非晶晶间相和颗粒簇。微波表征表明，随着添加剂含量的增加，厚膜的相对介电常数、介电损耗和可调性降低。这些结果证明了通过改变添加剂含量来调整材料性能的潜力。
BST-ZnO-B2O3-composite thick films have been investigated regarding their suitability as low-temperature sintered tunable microwave dielectrics. The investigations showed that already a small amount of ZnO-B2O3 additive can remarkably reduce the sintering temperature down to 900 degrees C. Microstructural investigations of the thick films revealed the formation of an amorphous intergranular phase and a clustering of particles for high additive amounts. The microwave characterization showed a reduction in relative permittivity, dielectric loss, and tunability of the thick films with increasing additive content. These results demonstrate the potential to tailor the material abilities by varying the additive content.