The performance of polycrystalline material manufactured by using Hot-pressed forming method, PVD and CVD is becoming perfect and has replaced monocrystalline material in some fields.
热压法、P VD、CVD制备的多晶材料日趋完善，在一些领域已取代单晶材料。
The principle and method of measuring the acoustic speed CVD diamond film with piezoelectric film detecting laser ultrasonic system are presented.
本文介绍了压电薄膜检测的激光超声系统对CVD金刚石膜声速测量的原理及方法。
In this dissertation, Freestanding Thick Diamond films (FTDF) prepared by CVD method are applied as substrates of piezoelectric materials and the piezoelectric films are investigated systematically.
本文以CVD方法制备的自持金刚石厚膜为基片，沉积压电薄膜并系统研究了压电薄膜的各项性能。
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