Piezoelectric coating

Details Piezoelectric coating Piezoelectric coating

2005-04-12

2005-04-12

Talbot, Brian K. (Department: 1762)

Coating processes

Direct application of electrical, magnetic, wave, or...

Pretreatment of substrate or post-treatment of coated substrate

C427S100000, C427S126300, C204S192170, C204S192180

Reexamination Certificate

active

06878416

ABSTRACT:
A color shifting composition and method useful as a coating on a surface. The composition comprises a layer of piezoelectric material disposed on the surface and a layer of electrically conductive disposed on the layer of piezoelectric material. A mechanism is included for changing an electromagnetic property of the layer of piezoelectric material. Thus, the surface has a first reflective or refractive property at one setting of the mechanism and another reflective or refractive property at another setting of the mechanism. In the illustrative embodiment, the layer of piezoelectric material and the layer of electrically conductive material are sufficiently thin to be transparent to electromagnetic energy in the frequencies of interest. In the illustrative embodiment, the mechanism for changing an electromagnetic property of the layer of piezoelectric material is a source of the electrical potential.

REFERENCES:
patent: 3787609 (1974-01-01), Plumeau
patent: 4630040 (1986-12-01), Haertling
patent: 6373618 (2002-04-01), Agrawal et al.
Jonathan R. Tuck & J M. Hale; A Novel Thick-Film Strain Transducer Using Piezoelectric Paint; Department of Mechanical, Materials & Manufacturing Engineering: University of Newcastle.

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