The Cr.sub.2 O.sub.3 protective coating (3) is applied, during the vacuum spray process, as a leakproof coating to a support (1), and has a density of not more than 5.3 g/cm.sup.3, a residual porosity of less than 2%, a Vickers hardness (HV) of over 2000 kp/mmm.sup.2 and an electric strength of at least 5 V/m of protective thickness; it is particularly suited as a protective coating on supports (3) exposed to corrosion and simultaneously subjected to high mechanical loads.
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机译：在真空喷涂过程中，将Cr2O3防护涂层（3）作为防漏涂层施加到载体（1）上，其密度不超过5.3 g / cm.sup .3残余孔隙率小于2％，维氏硬度（HV）大于2000 kp / mmm.sup.2，且电气强度至少为保护厚度的5 V / m;它特别适合用作支撑件（3）上的保护涂层，该支撑件受到腐蚀并同时承受高机械负荷。
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