Development of an advanced nanocalorimetry system for material characterization |
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| Institution: | 1. Mary Kay O''Connor Process Safety Center, Texas A&M University, College Station, TX 77843-3122, USA;2. ioMosaic Corporation, Salem, NH 03079, USA;1. State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, PR China;2. Department of Clinical Laboratory, Zhongnan Hospital, Wuhan University, Wuhan, 430071, PR China;1. Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria;2. National Specialized Hospital for Active Treating of Haematological Diseases, Sofia, Bulgaria;1. Center for Advanced Solidification Technology (CAST) & Laboratory for Microstructures, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China;2. John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States;3. Institute of Physics and Competence Centre CALOR, University of Rostock, Albert-Einstein-Str. 23-24, 18051 Rostock, Germany;4. Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russian Federation;1. School of Mechanical Engineering, Northwestern Polytechnical University, Xi''an, Shaanxi, 710072, People''s Republic of China;2. School of Microelectronics, Hefei University of Technology, Hefei, Anhui, 230009, People''s Republic of China;3. Central European Institute of Technology, Brno University of Technology, 61200, Brno, Czech Republic;4. The Faculty of Electrical Engineering and Communication, Brno University of Technology, 61600, Brno, Czech Republic |
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| Abstract: | Calorimetric techniques, such as Differential Scanning Calorimeter (DSC), are widely used to characterize energetic materials. The conventional DSC is a well-established tool but is limited to a macroscopic sample. A key drawback of conventional macroscale DSC technology is the large thermal inertia of the calorimetric cell and its associated hardware for smaller sample size. The conventional technology can impose severe limitations in cases where only minute sample quantities are available for testing (e.g. forensics, detection of trace explosives, process or product development).A microreactor based calorimeter is being developed to obtain accurate measurements with smaller sample sizes. Because these systems incorporate a very small thermal mass and use reagent quantities in the nanogram/nanoliter range, rapid and uniform heating and cooing can be achieved while maintaining a high level of temperature homogeneity. These miniaturized nanocalorimeters can offer enhanced sensing capabilities in an inexpensive portable format so that measurements can be made directly in the settings where they are needed.This paper discusses the design and fabrication of the nanocalorimeter device, as well as interface with a modular thermal control system. With the proposed advanced device, a calorimetric analysis can be performed in a few minutes utilizing a minute sample. Therefore, such a nanocalorimeter can be effectively employed for rapid screening of energetic materials at relatively low cost. |
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