MTC Offers High Thermal Conductivity Insulators
The ability to dissipate heat is important in a material for its insulating properties and for the performance of devices such as electronic circuit boards. MTC offers a wide range of materials for thermal management including insulation for power transistors, gap fillers and high-temperature conductive double-sided adhesive tapes. The company also offers phase change material and graphite foils for the thermal management of semiconductors.
Efficient Thermal Management in Electronics is the rate at which it can transfer energy, measured in watt (W) per meter-Kelvin. This value is a function of temperature and the type of material. Metals generally have a higher thermal conductivity than insulating materials, such as wood or glass. This is because they have a low density and, consequently, more free electrons available to move. The thermal conductivity of pure metals is very high, while the conductivity of alloys tends to be lower.
Another measure of a material’s ability to transfer energy is the Specific Heat Capacity, which is the amount of heat needed to raise the temperature of 1kg of a particular material by 1K or 1oC. This reflects the material’s thermal mass, and a high Specific Heat Capacity is an indication of a good insulator.
In addition to a high Thermal Conductivity, some materials also have a low Thermal Diffusivity. This is the rate at which heat moves through a material, and it is a function of the temperature gradient and the mean free path of the phonons in the material. In metals, the thermal diffusivity decreases as the temperature rises because the phonons become more tightly packed together.
Most insulators also have a relatively low Thermal Diffusivity, and this is partly because they contain air. However, some insulators, such as cellulose insulation and xenon gas, have extremely low thermal diffusivity values. This is because they have very low densities, meaning that a lot of the material has been removed from the space.
The MTC MTPS sensor is a fast and accurate way to measure the thermal conductivity of materials at elevated temperatures. The system can measure a wide variety of materials with great accuracy and precision, from standard polymers to high-performance ceramics. It is also capable of determining the thermal conductivity of materials that are anisotropic, or that have different thermal conductivities in different directions.
In order to make an accurate measurement, the MTPS sensor must be positioned on a surface that is free of dust, oil and other contaminants that can affect the results. The sensor must also be mounted on a rigid base to avoid vibration and interference from surrounding equipment or environmental conditions. The sensors are designed to withstand the rigours of high-temperature environments and have been proven in many laboratory tests and industrial applications. They can also be used in a wide variety of other research applications, including materials science and nanotechnology. They are also ideal for use in the development of new materials and components, as well as for quality control in production processes.