ISSN:
1551-2916
Quelle:
Blackwell Publishing Journal Backfiles 1879-2005
Thema:
Maschinenbau
,
Physik
Notizen:
Transparent PLZT(7/60/40) ceramics with large piezoelectric coefficients were obtained using a two-step sintering process with controlled oxygen partial pressure. Specifically, low-oxygen-pressure and low-temperature sintering were used in the first step, followed by a high-oxygen-pressure, high-temperature sintering cycle. High-density ceramics with small grain sizes of about 3 µm were prepared. As a result, kp= 0.71, k33= 0.78, d33= 850 × 10-12 C/N, and a transparency of 15% (λ= 610 nm, thickness of 1 mm) have been achieved; 20% improvement of d33 was gained compared to conventional processed PLZT ceramics (d33= 710 × 10-12 C/N).
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1111/j.1151-2916.1999.tb01938.x
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