Volume increase phenomena in reciprocal scratching of polycarbonate studied by atomic force microscopy
作者:
Andrew Khurshudov,
Koji Kato,
期刊:
Journal of Vacuum Science&Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena
(AIP Available online 1995)
卷期:
Volume 13,
issue 5
页码: 1938-1944
ISSN:1071-1023
年代: 1995
DOI:10.1116/1.588112
出版商: American Vacuum Society
关键词: ADHESION;FRICTION;POLYCARBONATES;SILICON NITRIDES;WEAR RESISTANCE
数据来源: AIP
摘要:
An atomic force microscope (AFM) was used to study the microwear process of polycarbonate (PC). Testing included line scratching of the polymer surface using a microfabricated Si3N4AFM tip of 10–20 nm radius. Interfacial adhesion, friction, the effect of the number of scratches, and scanning speed were studied. Unlike previous reports, projections as a result of polycarbonate apparent volume increase have been observed after reciprocal scratching on the same track (without an AFM tip lateral feed). In spite of analytically predicted elastic/plastic contact, no plastic deformation was found during the tests. A model, based on the formation of cracks and their growth was suggested to explain these phenomena. No viscoelastic/plastic behavior (scanning speed effect on friction or microwear) was found.
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