Gregoire, John M. and Xiao, Kechao and McCluskey, Patrick J. and Dale, Darren and Cuddalorepatta, Gayatri and Vlassak, Joost J. (2013) In-situ X-ray diffraction combined with scanning AC nanocalorimetry applied to a Fe_(0.84)Ni_(0.16) thin-film sample. Applied Physics Letters, 102 (20). Art. No. 201902. ISSN 0003-6951. PMCID PMC3676369. doi:10.1063/1.4806972. https://resolver.caltech.edu/CaltechAUTHORS:20130813-135504917
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Abstract
We combine the characterization techniques of scanning AC nanocalorimetry and x-ray diffraction to study phase transformations in complex materials system. Micromachined nanocalorimeters have excellent performance for high-temperature and high-scanning-rate calorimetry measurements. Time-resolved X-ray diffraction measurements during in-situ operation of these devices using synchrotron radiation provide unprecedented characterization of thermal and structural material properties. We apply this technique to a Fe_(0.84)Ni_(0.16) thin-film sample that exhibits a martensitic transformation with over 350 K hysteresis, using an average heating rate of 85 K/s and cooling rate of 275 K/s. The apparatus includes an array of nanocalorimeters in an architecture designed for combinatorial studies.
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| Additional Information: | © 2013 AIP Publishing LLC. Received 4 April 2013; accepted 2 May 2013; published online 21 May 2013. The authors thank Aaron Lyndaker for assistance with the synchrotron experiments and James MacArthur for assistance with the custom electronics. This work was supported by the Materials Research Science and Engineering Center at Harvard University (NSF-DMR-0820484), the Air Force Office of Scientific Research (FA9550-12-1-0098), and the DOE Office of Basics Energy Sciences (DE-SC-0004889). The experiments were conducted at CHESS, which is supported by the NSF & NIH/NIGMS via NSF Award No. DMR-0936384. Device fabrication was supported by the Center for Nanoscale Systems at Harvard University (NSF-ECS-0335765). | ||||||||||||||
| Group: | JCAP | ||||||||||||||
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| Subject Keywords: | calorimetry, cooling, heat treatment, heating, iron alloys, martensitic transformations, metallic thin films, nickel alloys, synchrotron radiation, X-ray diffraction | ||||||||||||||
| Issue or Number: | 20 | ||||||||||||||
| Classification Code: | PACS: 81.30.Kf; 64.70.kd; 68.55.-a; 81.40.Gh | ||||||||||||||
| PubMed Central ID: | PMC3676369 | ||||||||||||||
| DOI: | 10.1063/1.4806972 | ||||||||||||||
| Record Number: | CaltechAUTHORS:20130813-135504917 | ||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20130813-135504917 | ||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||
| ID Code: | 39898 | ||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||||
| Deposited On: | 19 Aug 2013 18:23 | ||||||||||||||
| Last Modified: | 09 Nov 2021 23:47 |
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