Published December 1991 | Version v1
Report Restricted

Deposition and properties of novel nitride superlattice coatings

Creators

Description

We have demonstrated that polycrystalline TiN/NbN superlattice thin films on tool steel substrates can have hardnesses H as high as 5200 kg mm-2 HV0.05 (52 Gpa). This is more than twice the hardness of polycrystalline sputtered TiN and NbN deposited using the same conditions, and matches the highest H observed for single-crystal TiN/NbN superlattices. Initial parametric studies showed that H increased with decreasing superlattice period down to 4 nm, similar to the dependence for single-crystal TiN/NbN. These results are the first indication that polycrystalline superlattices with high hardness can be deposited on practical substrates

Availability note (English)

MF available from INIS under the Report Number; OSTI as DE92007548; NTIS; INIS; US Govt. Printing Office Dep.

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Additional details

Additional titles

Subtitle (English)
Progress report, September 27, 1990--May 27, 1992

Publishing Information

Imprint Pagination
5 p.
Report number
DOE/ER/45434--1

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
23038662
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Progress Report
Descriptors DEI
DEPOSITION; HARDNESS; NIOBIUM NITRIDES; PROGRESS REPORT; SUPERLATTICES; THIN FILMS; TITANIUM NITRIDES
Descriptors DEC
FILMS; MECHANICAL PROPERTIES; NIOBIUM COMPOUNDS; NITRIDES; NITROGEN COMPOUNDS; PNICTIDES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Contract/Grant/Project number
Contract FG02-90ER45434
Funding organization
USDOE, Washington, DC (United States).