Measurement of the thermal conductivity of metals by means of a dynamic lambda-calorimeter
Abstract
The paper describes a calorimeter for measuring the thermal conductivity of high-thermal-conductivity metals subjected to monotonic heating. The calorimeter consists of an adiabatic shell and a rod both made of copper, with thermocouples to measure the temperature of the shell. A heater made of Nichrome is mounted in the shell. A potentiometer is used to measure the temperature of the specimen which is attached to the rod and must have a diameter of 10 mm and a height of 10 to 12 mm. To determine the thermal conductivity of the specimen at different heating temperatures, it is necessary to measure the temperature lag of a point of the specimen with respect to another point of the specimen. Molybdenum and a stainless steel were used as specimen metals.
- Publication:
-
Priborostroenie
- Pub Date:
- 1975
- Bibcode:
- 1975Prib...18..102B
- Keywords:
-
- Calorimeters;
- Thermal Conductivity;
- Dynamic Response;
- Metal Plates;
- Molybdenum;
- Perforated Plates;
- Potentiometers (Instruments);
- Stainless Steels;
- Thermocouples;
- Instrumentation and Photography