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

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

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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:: Wong, Ming-Show; Li, Dong; Chung, Yip-Wah; Sproul, William D.; Chu, Xi; Barnett, Scott A.

Issue Date:: 1998-01-01

Research Org.:: Northwestern Univ., Evanston, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 871682

Patent Number(s):: 5776615

Application Number:: 08/388,020

Assignee:: Northwestern University (Evanston, IL)

Patent Classifications (CPCs):: C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

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C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C26/00 - Coating not provided for in groups C23C2/00 - C23C24/00
C23C14/024 - {Deposition of sublayers, e.g. to promote adhesion of the coating
C23C14/06 - characterised by the coating material
C23C14/0658 - {Carbon nitride}
C23C14/025 - {Metallic sublayers}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/265 - 1 mil or less

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C14/081 - {of aluminium, magnesium or beryllium}
C23C14/0021 - {Reactive sputtering or evaporation}
C23C14/505 - {for rotation of the substrates}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/24983 - Hardness

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
C23C14/0042 - {Controlling partial pressure or flow rate of reactive or inert gases with feedback of measurements}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/24942 - including components having same physical characteristic in differing degree

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C28/04 - only coatings of inorganic non-metallic material

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DOE Contract Number:: FG02-90ER45434

Resource Type:: Patent

Resource Relation:: Patent File Date: 1995 Feb 14

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.

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                    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.

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                    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.

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@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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