鉱物の熱測定に適する断熱型熱量計

抄録

An adiabatic calorimeter has been described for the calorimetric measurement of minerals in the range from room temperature to 600°C. Unlike reported adiabatic calorimeters which generally require samples in the amount of 7—100 g, the new calorimeter has been so designed that very small amount of samples, such as 1—2g, may be used. The main part of the calorimeter is composed of metals, and of sheath heaters and sheath thermocouples to obtain good thermal contact, respons and homogeneity in the sample and the environment. The data acquisition system is automated with a microcomputer. The heat capacity (C_P) of corundum between 30°and 500°C has been determined by the calorimeter in the precision of ±2% using about 2 g of the powder.