| 摘要 |
1496192 Ceramic materials FERRO CORP 24 Jan 1975 [24 Jan 1974] 3195/75 Heading C1J [Also in Divisions C7 and B2] A substrate of, e.g. stainless steel is coated with a ceramic slip after first applying an oxide or a thermally decomposable compound of a transition metal. The slip may comprise (parts by weight): frit 100, clay 6, boric acid “, bentonite “, potassium nitrite 3/8, chrome oxide 30, water 35. In another example the chrome oxide is 2 and water 45. Two examples of frit compositions are described, one of which comprises (per cent weight) BaO 16À03, B 2 O 3 7À42, CaO 1À47, K 2 O 1À28, Li 2 O 0À76, MgO 0À28, Na 2 O 2À46, SiO 2 44À12, TiO 2 8À57, ZnO 11À91, ZrO 2 2À76, SrO 0À84, CeO 2 2À11. |
