Modified stepwise method for determining heat capacity by DSC
- 276 Downloads
The methods of heat capacity data determination from differential scanning calorimetry measurements are described. The negative effects increasing uncertainty of heat capacity determination are mentioned. Modified stepwise method was described and verified using molybdenum, copper, and gold standards. Modified stepwise method provides better accuracy of C p values compared to continuous and stepwise method.
KeywordsDSC Heat capacity Stepwise method Continuous method Accuracy of Cp
This work has been supported by the Czech Science Foundation under project No. P106/11/1152.
- 1.Perkin-Elmer instruments Pyris 1: technical Norwalk, CT:specifications; 2000.Google Scholar
- 3.Zielenkiewicz W. Calorimetry. 1st ed. Warszava: Institute of Physical Chemistry PAN; 2005.Google Scholar
- 4.Web of Science. www.webofknowledge.com. Accessed 1 Mar 2014.
- 6.Jankovsky O, Sedmidubský D, Sofer Z, Čapek J, Růžička K. Thermal properties and homogeneity range of Bi24+xCo2-xO39 ceramics. Ceram-Silik. 2013;57:83–6.Google Scholar
- 8.Brown ME, Gallagher PK (eds). Handbook of thermal analysis and calorimetry. Volume 1: Principle and Practise, Amsterdam: Elsevier, 1998.Google Scholar
- 18.ASTM norm E1269-11: Standard Test Method for Determining Specific Heat Capacity by Differential Scanning Calorimetry, Pennsylvania, ASTM InternationalGoogle Scholar
- 19.Application note M149-v1, Setaram.Google Scholar
- 21.NIST data of Mo–National Bureau of Standards Certificate, Standard Reference Material 781, Molybdenum–Heat capcity.Google Scholar
- 23.Knovel: Yaws′ handbook of properties of the chemical elements, http://app.knovel.com/web/toc.v/cid:kpYHPCE007/viewerType:toc/root_slug:yaws-handbook-properties.
- 24.Slough CG, Hesse ND. High precision heat capacity measurements of metals by modulated DSC. Proc NATAS Annu Conf Therm Anal Appl. 2006;34:160.Google Scholar
- 27.Blaine RL. Interlaboratory precision and bias for thermal conductivity and specific heat capacity by modulated differential scanning calorimetry. Therm Cond. 2005;26:309–18.Google Scholar