Method of manufacturing inkjet print head base elements by sacri

Details Method of manufacturing inkjet print head base elements by sacri Method of manufacturing inkjet print head base elements by sacri

1998-09-03

2000-05-23

Hall, Carl E.

Metal working

Piezoelectric device making

298901, 264109, 264669, 264670, H04R 1700

Patent

active

060651954

ABSTRACT:
A method for making ink jet print head base elements which includes the steps of making a sacrificial mold of the ink jet print head, binder coagulation casting a ferroelectric, piezoelectric ceramic slurry into the sacrificial mold to form a green ceramic base element, and sintering the green ceramic base element while in the sacrificial mold to thereby burn off the sacrificial mold and yield a sintered, net shape, molded ink jet print head. complex shapes to thereby reduce the numbers of complex manufacturing steps. A three dimensional jet printing process can be used to form the sacrificial molds. Once the sacrificial mold has been made, a ferroelectric material (and preferably a piezoelectric material) is prepared using a binder coagulation process. The slurry of the ferroelectric material, preferably lead zirconium titinate (PbZrTiO.sub.3 hereinafter referred to as PZT) is poured into the mold. Once the ferroelectric material is poured into the mold, a chemical initiator is added. After the PZT solidifies, the green ceramic component is placed in a furnace and sintered at about 1200.degree. C.

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