Abstract: A sintered metal part which has a pressed and sintered core; the part is coated with a sintered metal surface layer; the layer has a property different from that of the metal part; the interior regions of the core are free of the metal constituting the coating; and process for making the parts.

Abstract: Corrosion and oxidation resistant coating compositions containing phosphate, chromate or molybdate and atomized aluminum powder.

Abstract: A coated metal or ceramic part having improved salt corrosion and oxidation resistance having a liquid binder which comprises phosphate ions and ions of the group of chromate or molybdate ions, and an atomized aluminum powder having an average particle size (as expressed in terms of the median equivalent spherical diameter (ESD)), that is greater than at least 15 .mu.m, and having a size distribution such that at least about 5% of the particles by weight are retained on a 325 mesh screen.

Abstract: A coating composition especially suitable for a machinable aluminum-filled coating possessing improved salt corrosion and oxidation resistance having a liquid binder which comprises phosphate ions and ions of the group of chromate or molybdate ions, and an atomized aluminum powder having an average particle size (as expressed in terms of the median equivalent spherical diameter (ESD)), that is greater than at least 15 .mu.m, and having a size distribution such that at least about 5% of the particles by weight are retained on a 325 mesh screen, and the coatings and parts formed therewith.

Abstract: A primer coating composition, particularly for use with polyvinylidene fluoride topcoating comprising an aqueous acid coating composition having phosphate ions and ions of the group of chromate ions or molybdate ions, and particulate of polyvinylidene fluoride.

Abstract: Coating compositions, coatings, coated parts and methods of use of chromate/phosphate type compositions. The coating compositions are of a type which contains small spheroidal aluminum particles having a defined size. The coated materials of the invention having improved corrosion and erosion resistance and improved low profile.

Abstract: A stable thixotropic coating composition especially suitable for dipspin application having an aqueous acid binder solution which comprises phosphate ions and ions of the group of chromate ions or molybdate ions, and a dispersible hydrated alumina having a boehmite type crystal lattice.

Abstract: Coating compositions, coatings, coated parts and methods of use of chromate/phosphate type compositions. The coating compositions are of a type which contains small spheroidal aluminum particles having a defined size. The coated materials of the invention having improved corrosion and erosion resistance and improved low profile.

Abstract: A primer coating composition, particularly for use with polyvinylidene fluoride topcoating comprising an aqueous acid coating composition having phosphate ions and ions of the group of chromate ions or molybdate ions, and particulate of polyvinylidene fluoride.