Method for manufacturing a piezoelectric ceramic body
First Claim
1. A method of manufacturing a piezoelectric ceramic body comprising:
- mixing a ceramic powder, polymer binder and surfactant to form a slip mixture with a solids loading by weight;
casting said slip mixture into a mold;
setting the slip mixture in said mold to form a green body separating said green body from said mold;
cutting said green body to form a cut green body with an array comprising a plurality of micron-size ceramic elements and separations; and
sintering said cut green body to form a densified sintered body.
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Abstract
The present invention relates to a method of manufacturing a piezoelectric ceramic body and devices therefrom. The method comprises mixing a piezoelectric ceramic powder with a polymer binder and surfactant to form a slip mixture, casting the slip mixture into a mold and setting to the slip mixture in the mold to form a green body, cutting the green body to form a cut green body with an array of micron-sized ceramic elements and separation, and sintering the cut green body to form a sintered ceramic body. The sintered ceramic body can be further process to encasing in a polymer material to form a piezoelectric ceramic-polymer composite. The piezoelectric ceramic-polymer composite can be further processed to form devices such as acoustic transducers and sensors.
69 Citations
30 Claims
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1. A method of manufacturing a piezoelectric ceramic body comprising:
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mixing a ceramic powder, polymer binder and surfactant to form a slip mixture with a solids loading by weight;
casting said slip mixture into a mold;setting the slip mixture in said mold to form a green body separating said green body from said mold; cutting said green body to form a cut green body with an array comprising a plurality of micron-size ceramic elements and separations; and sintering said cut green body to form a densified sintered body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of manufacturing a piezoelectric ceramic composite for a device, comprising:
- mixing a piezoelectric ceramic powder, organic binder, and surfactant to form a slip wherein said slip has a solids loading of at least 90% by weight;
casting said slip into a mold to form a green body;
separating said green body from said mold;
cutting said green body to form a cut green body with an array of micron-sized ceramic elements and separations;
bisquing said cut green body to burn out said organic binder;
sintering said cut green body to form a sintered ceramic body; and
encasing said sintered ceramic body in a polymer material to form a ceramic-polymer composite. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
- mixing a piezoelectric ceramic powder, organic binder, and surfactant to form a slip wherein said slip has a solids loading of at least 90% by weight;
Specification