这种具有晶粒定向结构的BT S极性微晶玻璃，具有较高的机电耦合系数和低的延迟温度系数，在声表面波器件上具有潜在的应用价值。
It shows that BTS polar glass ceramics with grain orientation structure have a potential application in SAW devices for their high SAW coupling coefficient and low temperature coefficient of delay.
用定向凝固技术制作单晶铸件；摸索合理可行的工艺方法；分析晶粒生长淘汰过程。
Single-crystal casts are obtained with the technology of directional solidification, the reasonable technique is discussed and the growing process of single crystal is analyzed.
讨论了晶粒定向对压电陶瓷结构和性能的影响。
Structure and properties of grain orientated ceramics were discussed.
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