Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1997-06-27
2000-01-11
Beck, Shrive
Coating processes
With post-treatment of coating or coating material
Heating or drying
4274432, 427294, B05D 302
Patent
active
06013321&
ABSTRACT:
Methods useful in the manufacture of phosphate bonded ceramics. The invention is a method for impregnation of a green body to be fired to form a ceramic having the steps of: (a) forming a green body of unreacted ceramic materials; (b) determining the pore volume of the green body; (c) determining the amount of phosphoric acid required to react with the green body at a desired level; (d) making in impregnation solution of phosphoric acid and a carrier liquid having a ratio of phosphoric acid to carrier liquid equal to the ratio of (i) the volume of phosphoric acid determined for the reaction with the green body to (ii) the volume of carrier fluid equal to the pore volume of the green body minus the volume of the phosphoric acid determined for the reaction; (e) impregnating the green body with said solution of phosphoric acid and carrier fluid; and (f) firing the impregnated green body to form a phosphate bonded ceramic.
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patent: 4655610 (1987-04-01), Al-Jaroudi
patent: 5573986 (1996-11-01), Talmy et al.
"Ceramics and Glasses," Schneider, Samuel, J., Jr., et al., Engineered Materials Handbook, 1991 (no month).
"Processing of Silicon Nitride Ceramics Using Phosphate Bonding Techniques," Talmy, I. G., et al., 16th Conference on Metal Matrix Composites, 1992 (no month).
"Phosphate Bonding in Processing of Non-Oxide Ceramics," Talmy, I. G., et al., 15th Metal Matrix, Carbon, Ceramic Matrix Composites, 1991 (no month).
Dictionary of Ceramic Science and Engineering, 2nd Ed., McColm, Ian J., 1994 (no month).
Meyers Joseph F.
Wright Joseph M.
Beck Shrive
Lockheed Martin Corporation
Strain Paul D.
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