Method of making cordierite bodies

Details Method of making cordierite bodies Method of making cordierite bodies

1994-01-12

1995-07-04

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264 63, 501119, C04B 3504, C04B 3510

Patent

active

054297796

ABSTRACT:
In a process of forming cordierite-containing bodies, the water absorption capability or shrinkage of the bodies is controlled using the alumina-yielding ingredients. The process of controlling the water absorption capability or shrinkage includes the steps of providing alumina-yielding ingredients in the form of two aluminas having different particle sizes, wherein the ratio of the two particle sizes is in the range of from about 3:1 to 30:1 or 1:3 to 1:30. Next, a linear relationship between the cordierite-containing body's water absorption capability or shrinkage and the relative percentage of the alumina-yielding ingredients made up by the two aluminas is determined. After determining the linear relationship, a water absorption capability or shrinkage of the cordierite-containing body is selected in accordance with that relationship by adjusting the relative percentages of the two aluminas.

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