Article contents
Macroscopic Actuators Using Thick Piezoelectric Coatings
Published online by Cambridge University Press: 21 March 2011
Abstract
Large scale actuated structures often require piezoelectric elements in the thickness range 10-50μm. For manufacturing purposes, the chemical solution deposition of sol gel composites can create such structures using methods compatible with semiconductor fabrication technology. The piezoelectric characteristics of structures fabricated by patterning methods based on the lapping and dicing of bulk ceramic, spray coating and laser machined and micromolded sol gel composites are compared. Laser interferometer measurements on PZT/PZT composites give d33 = 200 pC/N and d31 = 24 pC/N. The design and fabrication of large area voltage actuated mirrors and annular and linear ultrasonic arrays in the frequency range of 50 MHz are demonstrated.
- Type
- Research Article
- Information
- Copyright
- Copyright © Materials Research Society 2001
References
- 7
- Cited by