Ultra-flat and low-friction metallic glass film and a method for preparing the same

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United States of America Patent

PATENT NO 11873551
APP PUB NO 20230304142A1
SERIAL NO

17705367

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Abstract

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An ultraflat and ultralow-friction metallic glass thin film is fabricated. The metallic glass thin film is a binary alloy, wherein a content of one metal element of the binary alloy is between 45 atomic % and 64 atomic %. The metallic glass thin film has an atomically smooth surface with a surface roughness Ra less than 0.1 nm and a total height of profile Rt less than 0.15 nm; the friction coefficient is below 1×10−2. Due to the metallic glass thin film being treated by ion bombardment, the metallic glass thin film is thermally ultrastable.

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Patent Owner(s)

  • CITY UNIVERSITY OF HONG KONG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bao, Yan Hong Kong, HK 7 2
Gu, Jialun Hong Kong, HK 2 0
Lu, Jian Hong Kong, HK 205 1476

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