High-temperature-resistant fusing electrode convenient in sample replacement

Abstract

The invention relates to the field of calorimetric devices, and particularly relates to a high-temperature-resistant fusing electrode convenient in sample replacement. The electrode comprises an electrode shell, two electrode wires, a thermocouple, a fuse wire and a sample pool, the two electrode wires penetrate through the electrode shell, electrode hooks are formed at the lower ends of the electrode wires, two ends of the fuse wire are respectively hung on the electrode hooks on the corresponding sides, a sample pool is hung on the fuse wire, the thermocouple penetrates through the electrode shell, the lower end of the thermocouple is inserted into the sample pool, and an electrode plug is arranged at the upper end of the electrode shell. The sample is convenient to replace, high temperature resistance is achieved, the fuse wire can be fused at any time when the temperature in the furnace is constant, and sample falling is convenient.

Description

technical field [0001] The invention relates to the field of calorimetric devices, in particular to a fusing electrode which is convenient for sample change and high temperature resistance. Background technique [0002] Heat capacity is the sum of the energy contributions of the internal lattice, electrons and other moving forms of the material system, and is a basic thermophysical parameter of matter. Through the accurate measurement of heat capacity, basic thermodynamic data such as enthalpy, entropy, and Gibbs free energy of matter can be obtained, and the structure and phase transition of matter can be understood, as well as the lattice vibration, electronic energy level transition of the microscopic structure of matter, and understanding of superconducting phenomena, magnetism, etc. can be obtained. Mechanism of action, a method of structural distortion. Therefore, obtaining accurate data on the high-temperature heat capacity of substances is of great significance for ...

AI Technical Summary

Problems solved by technology

However, the sample cells of these types of drop-in high-temperature calorimetry devices rely on simple stainless steel columns as fusing electrodes, so the operation is complicated, and the repeatability and reliability at high temperatures are poor, which is not conducive to the control of samples at higher temperatures. The time when the pool falls, resulting in a large heat leak, affecting the accuracy of the instrument

At the same time, the maximum temperature of the fusing electrodes of these three calorimetric devices does not exceed 1000K, which seriously affects their application.

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