A new thermally stable structural duplex Ni-TaC nanocomposite

Authors
Wilde, JR Greer, AL
Citation
Jr. Wilde et Al. Greer, A new thermally stable structural duplex Ni-TaC nanocomposite, MAT SCI E A, 304, 2001, pp. 932-936
Citations number
27
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN journal
09215093 → ACNP
Volume
304
Year of publication
2001
Pages
932 - 936
Database
ISI
SICI code
0921-5093(20010531)304:<932:ANTSSD>2.0.ZU;2-U
Abstract
Two phase Ni-TaC nanocomposites are prepared by devitrification of sputtere d amorphous Ni63Ta23C14 (at.%) films. With a second phase carbide volume fr action around 35% the resultant microstructure is classified as duplex ol d ual phase. These new nanocrystalline materials are shown to exhibit excepti onal thermal stability, which is for the first time described using existin g duplex grain growth theory. They an further shown to possess outstanding mechanical properties with a typical hardness of II GPa. (C) 2001 Elsevier Science B.V. All rights reserved.