ABRASION-RESISTANT COVER FOR ARTICLES WITH CONJUGABLE SURFACES Russian patent published in 2003 - IPC

FIELD: chemical technology. SUBSTANCE: cover of internal surface of article comprises Ti_xAl_1-xN, wherein value x is in the limits from 0.1 to 0.2. Cover of external surface of article comprises Ti_tAl_1-tN, wherein value t is in the limits from 0.8 to 0.9 and it comprises Zr_yAl_1-yN, additionally wherein value y is in the limits from 0.2 to 0.3. Invention can be used in applying cover on articles forming friction pair by electric arc discharge in atmosphere of chemically inert gases. Invention provides the enhancement of safety in working friction pair using proposed covers. EFFECT: valuable properties of covers. 2 cl, 6 tbl, 1 ex