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  • 1
    Electronic Resource
    Electronic Resource
    Rate-scanning modified adiabatic calorimeter (1996)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 3553-3556 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We have developed a continuous cooling method, as a simple modification of adiabatic calorimetry which typically operates in the heating mode, with the capability of varying the scanning rate in the range of 0.01–2 K/min. This method allows us to determine the absolute value of specific heat of a liquid or solid during cooling as well as during heating in the temperature range between 100 and 400 K. The typical specific heat data of a supercooled liquid [Ca(NO3)2]0.4(KNO3)0.6 agree well with results by other methods. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1147063
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The 3ω technique for measuring dynamic specific heat and thermal conductivity of a liquid or solid (1996)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 29-35 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We show how to measure dynamic specific heat and thermal conductivity of a solid or liquid sample using the 3ω technique, which is an ac-modulation method where we use a heater simultaneously as the sensor. By varying the width of the heater relative to the thermal decay length, one can choose the proper regime to measure thermal conductivity or specific heat. The technique is applied to window glass and the results confirm the validity of the method. Experimental results for potassium dihydrogen phosphate crystal demonstrate the first-order transition at the Curie point, and the dynamic specific heat of supercooled liquid potassium–calcium nitrate is shown. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1146545
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Dynamic specific heat near the Curie point of Gd : The 5th Joint MMM−Intermag Conference (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 6166-6168 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have developed a dynamic calorimeter, which can measure thermal properties of a wire or planar sample as a function of frequency over the range of five decades, 0.01 Hz–1 kHz. We have used this calorimeter to study the frequency dependence of the specific heat of gadolinium near the Curie point. There is an indication that the specific heat peak associated with the magnetic phase transition may depend on the measuring frequencies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.350032
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  • 4
    Electronic Resource
    Electronic Resource
    Peltier microcalorimeter (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 2451-2453 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We developed an ac microcalorimeter utilizing the Peltier effect of a thermocouple junction as an ac power source. This Peltier microcalorimeter allows us to measure the absolute value of the heat capacity of small samples with submilligrams of mass. The performance of the microcalorimeter was checked in the temperature range of 15–420 K with α-Al2O3 samples of 0.54 and 2.25 mg. The absolute accuracy was ±3% for the range of 30–150 K and ±1% for 150–420 K. The precision was better than 0.5% in the whole temperature range. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.126373
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