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Title: Superhard composite materials including compounds of carbon and nitrogen deposited on metal and metal nitride, carbide and carbonitride

Abstract

A composite material having high hardness comprises a carbon nitrogen compound, such as CN.sub.x where x is greater than 0.1 and up to 1.33, deposited on a metal or metal compound selected to promote deposition of substantially crystalline CN.sub.x. The carbon nitrogen compound is deposited on a crystal plane of the metal or metal compound sufficiently lattice-matched with a crystal plane of the carbon nitrogen compound that the carbon nitrogen compound is substantially crystalline. A plurality of layers of the compounds can be formed in alternating sequence to provide a multi-layered, superlattice coating having a coating hardness in the range of 45-55 GPa, which corresponds to the hardness of a BN coating and approaches that of a diamond coating.

Inventors:
 [1];  [2];  [3];  [4];  [2];  [2]
  1. (Northbrook, IL)
  2. (Evanston, IL)
  3. (Wilmette, IL)
  4. (Palantine, IL)
Issue Date:
Research Org.:
Northwestern Univ., Evanston, IL (United States)
OSTI Identifier:
871682
Patent Number(s):
5776615
Assignee:
Northwestern University (Evanston, IL) CHO
DOE Contract Number:  
FG02-90ER45434
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
superhard; composite; materials; including; compounds; carbon; nitrogen; deposited; metal; nitride; carbide; carbonitride; material; hardness; comprises; compound; cn; 33; selected; promote; deposition; substantially; crystalline; crystal; plane; sufficiently; lattice-matched; plurality; layers; formed; alternating; sequence; provide; multi-layered; superlattice; coating; range; 45-55; gpa; corresponds; bn; approaches; diamond; crystal plane; diamond coating; carbon nitrogen; compound selected; composite materials; metal compound; composite material; materials including; metal nitride; nitrogen compound; composite mat; nitrogen deposited; superhard composite; hardness comprises; including compounds; omposite materials; /428/

Citation Formats

Wong, Ming-Show, Li, Dong, Chung, Yip-Wah, Sproul, William D., Chu, Xi, and Barnett, Scott A. Superhard composite materials including compounds of carbon and nitrogen deposited on metal and metal nitride, carbide and carbonitride. United States: N. p., 1998. Web.
Wong, Ming-Show, Li, Dong, Chung, Yip-Wah, Sproul, William D., Chu, Xi, & Barnett, Scott A. Superhard composite materials including compounds of carbon and nitrogen deposited on metal and metal nitride, carbide and carbonitride. United States.
Wong, Ming-Show, Li, Dong, Chung, Yip-Wah, Sproul, William D., Chu, Xi, and Barnett, Scott A. Thu . "Superhard composite materials including compounds of carbon and nitrogen deposited on metal and metal nitride, carbide and carbonitride". United States. https://www.osti.gov/servlets/purl/871682.
@article{osti_871682,
title = {Superhard composite materials including compounds of carbon and nitrogen deposited on metal and metal nitride, carbide and carbonitride},
author = {Wong, Ming-Show and Li, Dong and Chung, Yip-Wah and Sproul, William D. and Chu, Xi and Barnett, Scott A.},
abstractNote = {A composite material having high hardness comprises a carbon nitrogen compound, such as CN.sub.x where x is greater than 0.1 and up to 1.33, deposited on a metal or metal compound selected to promote deposition of substantially crystalline CN.sub.x. The carbon nitrogen compound is deposited on a crystal plane of the metal or metal compound sufficiently lattice-matched with a crystal plane of the carbon nitrogen compound that the carbon nitrogen compound is substantially crystalline. A plurality of layers of the compounds can be formed in alternating sequence to provide a multi-layered, superlattice coating having a coating hardness in the range of 45-55 GPa, which corresponds to the hardness of a BN coating and approaches that of a diamond coating.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

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