Method for producing a ceramic article

Details Method for producing a ceramic article Method for producing a ceramic article

1991-07-12

1993-03-09

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264 16, 264 56, 264 66, 264129, 264162, 264220, A61C 1300, C04B 3332, B29C 5900, B29C 3340

Patent

active

051924722

ABSTRACT:
A method of producing an article of ceramic material for replacement of a lost substance or tissue in the human body includes making a model having a contour of the article to be produced and positioning in a copying machine the model and a blank from which a tool is to be made. The contour of the model is sensed by sensing devices and transmitted to the blank. The model contour is linearly enlarged by use of mechanical procedures so as to define a linearly enlarged contour on the blank. After the enlarged contour has been defined on the blank, a tool is formed from the blank which has a contour corresponding to the linearly enlarged contour. The ceramic starting material is applied and compacted over the contour of the tool to produce an article with a corresponding enlarged contour. Finally, the article is removed from the tool and is treated in at least one sintering procedure such that the article with the enlarged contour is subjected to linear shrinkage until the size of the article contour corresponds to that of the model contour.

REFERENCES:
patent: 2271454 (1942-01-01), Erdle et al.
patent: 3880971 (1975-04-01), Pantanelli
patent: 4842454 (1989-06-01), Gustavsson et al.

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