Al10Cr28Co28Ni34/Ag composite coating shows ultra‑low friction and wear in aviation

The Al10Cr28Co28Ni34/Ag high‑entropy alloy composite coating recorded a friction coefficient below 0.1 when tested in aviation kerosene.
Tests also indicated a near‑zero wear rate and a cavitation erosion mass loss of less than 0.1 mg per hour in the same fuel.