Abstract
An account is given on the microhardness behavior of two-phase nanocomposites. It is shown that compositing of nanophase Fe and Cu leads to microhardness considerably higher than, rather than below or close to, the conventional upper bound of a simple average of those of the individual nanocrystalline phases. A modified rule of mixtures taking into account of the effects of interphase boundaries is used to explain the behavior of such nanocomposites with a large population of intimately intermixed phase domains.
| Original language | English |
|---|---|
| Pages (from-to) | 517-523 |
| Number of pages | 7 |
| Journal | Scripta Materialia |
| Volume | 42 |
| Issue number | 5 |
| DOIs | |
| State | Published - Feb 14 2000 |
| Externally published | Yes |
Funding
We thank Prof. R. C. Cammarata and Prof. J. C. M. Li for useful discussions. This work has been supported by NSF, Grant No. CMS-9409750 and CMS-9877006, and the SURA-ORNL-University Graduate Summer Research Program (DoE contract DE-AC05-96OR22464).