C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
117/225, 32/24,
C23C 14/06 (2006.01) C23C 14/22 (2006.01) C23C 14/24 (2006.01) C23C 14/34 (2006.01)
Patent
CA 2023049
A solid solution layer (C, D) of metalloids is applied on a workpiece by a reactive physical coating technique and has an inclusion ratio of the metalloids which varies continuously over the thickness of the layer. The solid solution layer (C, D) lies on a separating layer (B) on the workpiece. To produce the mixed layer (C, D) titanium is vaporized in a vacuum chamber in a crucible which is moved back and forth in front of the workpiece surfaces to be coated, and two gases are introduced which have different affinity to the vaporized titanium . For the creation of a first partial layer (C) of the solid solution layer (C, D) the inclusion ratio of the gases is varied steadily. During the coating operation the workpieces rotate, so that sometimes their surface is turned toward the crucible and sometimes away from it. The coated workpieces are distinguished by a high resistance to flank wear and cratering (Fig. 3).
Balzers Aktiengesellschaft
Fetherstonhaugh & Co.
Unaxis Balzers Aktiengesellschaft
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