FIELD: manufacturing of pieces with ceramic coatings. SUBSTANCE: method for manufacturing pieces with ceramic coating includes steps of applying an underlayer of an aluminum bearing nickel alloy on a piece base made of an aluminum alloy containing 17-19% of silicon; and sputtering of a ceramic layer. As the underlayer material is used a thermoreactive nickel - aluminum powder composition containing 10% of aluminum. The underlayer is produced by gas-plasma sputtering of a 40 - 60 microns layer on the piece base preheated to 185-205 C. A mixture of argon and hydrogen is used as the plasma producing gas. The flow rate of argon and hydrogen comprise 40 l/min and 6 l/min, respectively. EFFECT: increased efficiency of the process. 5 cl, 1 tbl
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Authors
Dates
1994-07-30—Published
1991-03-01—Filed