Abstract
Pulse thermal processing (PTP) of FePt nanoparticle films was studied using a high density infrared (HDI) plasma arc lamp. FePt nanoparticle films on silicon substrates were processed using 0.25- second infrared (IR) pulses. The processing was aimed at reaching a peak target temperature for multiple pulses of 550 °C. Numerical simulations of the heat transfer for the PTP were performed to determine the operating power levels for the plasma arc lamp. Infrared measurements were conducted to obtain experimental data for the surface temperature of the FePt nanofilm. Parameters needed for the heat-transfer model were identified based on the experimental temperature results. Following the model validation, several numerical simulations were performed to estimate the power levels. It was shown that the FePt nanoparticle films were successfully processed using the power levels provided by the heat-transfer analysis.
| Original language | English |
|---|---|
| Pages (from-to) | 788-797 |
| Number of pages | 10 |
| Journal | Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science |
| Volume | 38 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 2007 |
Funding
AGM measurements on processed samples. The authors also thank G.B. Thompson and A.C. Cole, Department of Metallurgical and Materials Engineering, University of Alabama, Tuscaloosa, AL, for providing Si-coated glass samples. The authors extend their gratitude to D.B. Kothe, Los Alamos National Laboratory, for providing access to the Telluride code for the computations done in this study. This research was sponsored by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory (ORNL), managed by UT–Battelle, LLC for the United States Department of Energy under Contract No. DE-AC05-00OR22725.
| Funders | Funder number |
|---|---|
| United States Department of Energy | |
| Battelle | |
| Oak Ridge National Laboratory |