Ultrahard carbon nanocomposite films | Zendy

Michael P. Siegal | Zendy; D. R. Tallant | Zendy; P. N. Provencio | Zendy; D. L. Overmyer | Zendy; R. L. Simpson | Zendy; L. J. Martı́nez-Miranda | Zendy

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Ultrahard carbon nanocomposite films

Author(s) -

Michael P. Siegal,

D. R. Tallant,

P. N. Provencio,

D. L. Overmyer,

R. L. Simpson,

L. J. Martı́nez-Miranda

Publication year - 2000

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.126576

Subject(s) - nanocomposite , annealing (glass) , materials science , diamond like carbon , amorphous solid , diamond , carbon film , amorphous carbon , carbon fibers , composite material , nanotechnology , thin film , composite number , crystallography , chemistry

Modest thermal annealing to 600 C of diamondlike amorphous-carbon (a-C) films grown at room temperature results in the formation of carbon nanocomposites with hardness similar to diamond. These nanocomposite films consist of nanometer-sized regions of high density a-C embedded in an a-C matrix with a reduced density of 5--10%. The authors report on the evolution of density and bonding topologies as a function of annealing temperature. Despite a decrease in density, film hardness actually increases {approximately} 15% due to the development of the nanocomposite structure

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