Recent advances in the synthesis and properties of amorphous and crystalline carbon nitride†
作者:
Beizhi Zhou,
Yip‐Wah Chung,
期刊:
Journal of the Chinese Institute of Engineers
(Taylor Available online 1998)
卷期:
Volume 21,
issue 6
页码: 691-700
ISSN:0253-3839
年代: 1998
DOI:10.1080/02533839.1998.9670428
出版商: Taylor & Francis Group
关键词: thin films;hard coatings;carbon nitride;magnetron sputtering;nanoindentation;tribology;wear;hard disk overcoat
数据来源: Taylor
摘要:
As a result of the prediction by Liu and Cohen that crystallineβ‐C3N4has mechanical properties similar to diamond, many research groups have attempted to synthesize carbon nitride using various deposition techniques. Most groups succeeded in producing amorphous carbon nitride coatings. These coatings, though softer than diamond, display excellent tribological properties and are now used as protective overcoats for computer hard drive systems. The lack of success to make crystalline coatings suggests thatβ‐C3N4is metastable. Using TiN(111) and ZrN(111) as seeding layers (which have similar lattice symmetry and commensurate unit cell dimensions asβ‐C3N4(001)), we were able to synthesize fully crystalline carbon nitride composite coatings with hardness in the 50 GPa range, which is in the low end of diamond films.
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