In the field of materials science, thermal conductivity is one of the important indicators for measuring material quality. As a professional testing equipment, the high-temperature thermal conductivity meter is like a heat tracker, accurately capturing the thermal conductivity characteristics of materials in high-temperature environments, and providing key data support for material research and development and application.
The core principle of the high-temperature thermal conductivity meter is based on Fourier’s law of heat conduction. By measuring the heat flux density of the material under a stable temperature gradient, the thermal conductivity coefficient is calculated. The equipment is mainly composed of a heating system, a temperature measurement system, and a data acquisition system. The heating system provides a stable heat source, the temperature measurement system uses high-precision thermocouples, and the data acquisition system records and analyzes temperature changes in real time. Advanced instruments are also equipped with a vacuum system to simulate the heat conduction process under different environmental conditions.
The use of a high-temperature thermal conductivity meter requires standardized operating procedures. First, select appropriate test methods and fixtures according to the characteristics of the sample. Then, accurately measure the sample size to ensure good contact with the test cavity. When setting the test temperature range, the use environment and thermal stability of the material must be considered. During the test, keep the environment stable and avoid external interference. When analyzing the data, pay attention to distinguishing the changes in thermal conductivity characteristics in different temperature ranges.
This testing technology plays an important role in many fields. In the aerospace field, it provides data support for the research and development of thermal protection materials; in the electronics industry, it helps optimize the performance of heat dissipation materials; in the energy field, it provides guidance for the development of thermoelectric materials. By accurately measuring the thermal conductivity of materials, the reliability and service life of products can be effectively improved.
With the advancement of new material technology, high-temperature thermal conductivity instruments are also constantly developing. Testing capabilities in a higher temperature range, more precise measurement accuracy, and smarter data analysis systems are all directions for instrument upgrades. These advances will promote the development of material science research to a deeper level and provide stronger technical support for the development of new materials.