baked permeability

baked permeability

[′bākt ‚per·mē·ə′bil·əd·ē]
(metallurgy)
The property of a molded mass of sand which permits passage of gases through it when molten metal is poured in a mold, baked above 230°F (110°C), and then cooled.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.