Ceramic shell mold for investment casting and method of making t

Details Ceramic shell mold for investment casting and method of making t Ceramic shell mold for investment casting and method of making t

1990-04-20

1990-10-30

Lin, Kuang Y.

Metal founding

Process

Shaping a forming surface

164 35, 164361, B22C 100, B22C 904

Patent

active

049662252

ABSTRACT:
A ceramic shell mold and method of making the same. The ceramic shell mold includes a facecoat layer comprised of a first ceramic material. A plurality of alternating layers are formed overlaying the facecoat layer. The alternating layers are comprised of a second ceramic material and a third ceramic material, the third ceramic material having thermophysical properties different than the second ceramic material. The second ceramic material and the third ceramic material are preferably a zircon-based material and an alumina-based material, respectively. The resultant ceramic shell mold has a greater high temperature creep resistance than a shell mold formed solely from the second ceramic material or solely from the third ceramic material.

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