Guenther, G. ; Aulbach, E. ; Hahn, H. ; Guillon, O. (2011)
High-temperature chip calorimeter with atmosphere control.
In: Thermochimica Acta, 522 (1-2)
doi: 10.1016/j.tca.2011.03.013
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A nanocalorimeter operating in various gas atmospheres and under controllable pressure at temperatures at least up to 1093 K is presented. It was developed to investigate nano-sized samples like nanoparticles and thin films under variable conditions. A special chip with two facing measurement cells for differential measurements was designed. Each cell consists of a thin, free-standing beam of silicon nitride instead of a continuous membrane. Joule heaters and temperature sensors are located at the tip of the SiN cantilevers. The calorimeter chip is mounted in a mobile measurement chamber that allows for preparation of surface-sensitive materials in a glove box. Subsequently the chamber is transferred to the measurement device. The chips are operated as AC calorimeter for sensitive detection of phase transitions. The functionality was demonstrated by calibration with different reference substances. Frequency scans with varying temperatures and gas atmospheres were performed to test the frequency dependency of the chip.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | Guenther, G. ; Aulbach, E. ; Hahn, H. ; Guillon, O. |
| Art des Eintrags: | Bibliographie |
| Titel: | High-temperature chip calorimeter with atmosphere control |
| Sprache: | Englisch |
| Publikationsjahr: | 10 August 2011 |
| Verlag: | Elsevier Science Publishing Company |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Thermochimica Acta |
| Jahrgang/Volume einer Zeitschrift: | 522 |
| (Heft-)Nummer: | 1-2 |
| DOI: | 10.1016/j.tca.2011.03.013 |
| Kurzbeschreibung (Abstract): | A nanocalorimeter operating in various gas atmospheres and under controllable pressure at temperatures at least up to 1093 K is presented. It was developed to investigate nano-sized samples like nanoparticles and thin films under variable conditions. A special chip with two facing measurement cells for differential measurements was designed. Each cell consists of a thin, free-standing beam of silicon nitride instead of a continuous membrane. Joule heaters and temperature sensors are located at the tip of the SiN cantilevers. The calorimeter chip is mounted in a mobile measurement chamber that allows for preparation of surface-sensitive materials in a glove box. Subsequently the chamber is transferred to the measurement device. The chips are operated as AC calorimeter for sensitive detection of phase transitions. The functionality was demonstrated by calibration with different reference substances. Frequency scans with varying temperatures and gas atmospheres were performed to test the frequency dependency of the chip. |
| Freie Schlagworte: | Nanocalorimetry, AC calorimetry, Instrument, High temperature, Nanoscaled samples, Oxides |
| Zusätzliche Informationen: | Special Issue: Interplay between Nucleation, Crystallization, and the Glass Transition |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 19 Feb 2013 09:07 |
| Letzte Änderung: | 05 Mär 2013 10:05 |
| PPN: | |
| Sponsoren: | We acknowledge the financial support of the Deutsche Forschungsgemeinschaft (DFG) within the frame of the Emmy Noether program (GU 993/1-1)., The authors are grateful to the “Joint Research Laboratory Nanomaterials Karlsruhe Institure of Technology and Technische Universität Darmstadt” and the State of Hessen for funding the calorimeter setup as a joint research project., We thank Xensor Integration for the joint chip development process. |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum