Measurement of Heat Capacity by Differential Scanning Calorimetry
نویسندگان
چکیده
The methods of measuring the heat capacity of materials by differential scanning calorimetry (DSC) are presented and discussed. The principles of temperature modulated DSC are outlined and the possibilities and limits of the method are discussed.
منابع مشابه
Heat capacity measurements of Sn nanostructures using a thin-film differential scanning calorimeter with 0.2 nJ sensitivity
We have developed a new thin-film differential scanning calorimetry technique that has extremely high sensitivity of 0.2 nJ. By combining two calorimeters in a differential measurement configuration, we have measured the heat capacity and melting process of Sn nanostructures formed via thermal evaporation with deposition thickness down to 1 Å. The equivalent resolution of the calorimeter is 1 n...
متن کاملPractical approach for measuring heat capacity of pharmaceutical crystals/glasses by modulated-temperature differential scanning calorimetry.
A practical protocol to obtain accurate heat capacity values of pharmaceutical compounds using modulated-temperature differential scanning calorimetry was established. Three pharmaceutical compounds, acetaminophen, indomethacin, and tri-O-methyl-β-cyclodextrin were used as model compounds. Powder samples did not produce reproducible results, presumably due to inclusion of gas in gap of powders ...
متن کاملHeat capacity and thermodynamic properties of andradite garnet, Ca3FezSi3012, between 10 and 1000 K and revised values for AfGz (298.15 K) of hedenbergite and wollastonite
Ahshact-The heat capacity of synthetic andradite garnet (Ca~Fe&Oir) was measured between 9.6 and 365.5 K by cryogenic adiabatic calorimetry and from 340 to 990 K by differential scanning calorimetry. At 298.15 KC&,, and Sz arc 351.9 + 0.7 and 316.4 rf: 2.0 J/(mol-K), respectively. Andradite has a X-peak in Ci, with a maximum at 11.7 t 0.2 K which is presumably associated with the antiferromagne...
متن کاملHeat Capacity and Thermodynamic Properties of Poly(chlorotrifluoroethylene) from 2.5 to 620 K
Heat capacities and thermodynamic properties of a number of poly(chlorotrifluoToethylene) samples subjected to various thermal treatments, to achieve crystallinities ranging from approximately 10 to 90%, have been studied from 2.5 to 370 K by automated adiabatic calorimetiy and from 250 to 620 K by differential scanning calorimetry. Small heat capacity discontinuities in the temperature range f...
متن کاملSurveying the effects of silver nanoparticle on thermal properties of some calyx [4]arene compounds by Differential Scanning Calorimetry (DSC)
One of the best and the most active ways for surveying thermal behaviour of materials is using differential scanning calorimetry. In this paper, the authors have studied thermal behaviour for Schiff base ligand and their synthesized Cobalt, Nickel complexes. In this method, the sample is opposed to a controlled temperature change and its physical properties. Here we studied melting point and Tg...
متن کامل