Specific heat measuring of ultrafine particles by differential scanning calorimetry.
نویسندگان
چکیده
منابع مشابه
Measurement of Specific Heat Functions by Differential Scanning Calorimetry
When a sample material is subjected to a linear temperature program, the heat flow rate into the sample i s proportional to its instantaneous specific heat. By recording this heat flow rate as a function of temperature, and comparing it with the heat flow rate into a standard material under the same conditions, the specific heat of the sample i s determined as a fundion of temperature. The meth...
متن کاملMeasurement of Heat Capacity by Differential Scanning Calorimetry
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.
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 کاملDifferential scanning calorimetry of bacteria.
Thermograms obtained by differential scanning calorimetry of a range of bacteria of different heat resistances were compared. Equations were derived to calculate the rate at which the numbers of viable organisms in a calorimeter decline as the temperature is raised at a constant rate. Vegetative bacteria scanned at 10 degrees C min-1 showed multi-peaked thermograms with four major peaks (denote...
متن کاملDifferential Scanning Calorimetry of Whole
Cereal Chem. 66(4):317-320 The thermal properties of whole grain milled rice and milled rice flour samples. Gelatinization enthalpies were about 40% greater in whole grain were investigated by differential scanning calorimetry. Thermal curves rice compared to rice flour for each variety. Heating rate studies conducted were obtained on representative long, medium, short, and very low amylose on ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of the Japan Institute of Metals
سال: 1987
ISSN: 0021-4426,1884-5835
DOI: 10.2320/materia1962.26.1057