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What Is The Thermal Conductivity Of Alumina Ceramics?


Within a certain range, increasing the thermal conductivity of alumina ceramic materials by specific methods will improve its thermal conductivity, thermal convection, and thermal radiation capabilities.

The Thermal Conductivity Of Alumina Ceramics


Aluminum ceramic materials can further expand the application field of alumina ceramic materials. In order to improve the thermal conductivity of the alumina ceramic material, it is necessary to improve the purity of the alumina ceramic material, and try not to add or add additives, but in order to improve the density of the ceramic material and control the grain size, it is necessary to add a certain amount of Additives are still necessary, and some with high thermal conductivity can also be doped in an appropriate amount.

What is the thermal conductivity of alumina ceramics

Be-Cu Ceramics is relatively familiar with this aspect. Be-Cu Ceramics has special machining materials that are specially designed for ceramic materials. Every process has been carefully improved. Now, the main machining equipment used by Be-Cu Ceramics is ceramic CNC machine tools, which use a double-layer protective cover. The efficiency of alumina ceramics can be processed with high precision.

Thermal conductivity of alumina ceramics: Material—thermal conductivity (W/mk) Alumina ceramics—29.3 Beryllium oxide ceramics—196.8; probably thermal conductivity can reach 30W/M*K, boron nitride, aluminum nitride prices are relatively high, 200 Yuan/KG, thermal conductivity can reach 100-200W/M*K.

The thermal conductivity of alumina ceramics is about 30, and alumina ceramics have good conductivity, mechanical strength and high temperature resistance. Its thermal conductivity varies greatly with temperature.

The influence of the internal structure of alumina ceramic materials on its thermal conductivity is complex, and there are various internal heat transfer methods according to different situations. For example, the interconnected pores in the internal structure of alumina ceramic materials have higher thermal conductivity than closed pores.

The higher the closed porosity, the lower the thermal conductivity. The addition of other components may change its internal structure during the firing process of alumina ceramics and affect the properties of alumina ceramics. In some cases, measures are chosen to change the internal structure of alumina ceramics to meet specific functional needs. The connection mode of the pores, the size of the raw material particles, and the appearance of internal defects such as microcracks will have a significant impact on the thermal conductivity of the material.

Alumina ceramics has its thermal conductivity, which is related to its chemical composition, structure, density, sintering process and other factors. Thermal conductivity of alumina ceramics: Material—thermal conductivity (W/mk) Alumina ceramics—29.3 Beryllium oxide ceramics—196.8; probably thermal conductivity can reach 30W/M*K, Be-Cu Ceramics briefly introduces the thermal conductivity of alumina ceramic materials Influencing factors and methods to improve thermal conductivity.


About China Advanced Ceramic CNC Machining Company - Be-Cu

China Ceramic Machine Shop

Manufacturer of precision machined components. Ceramic cnc machining components include high dielectric strength, electrical & corrosion resistance, & non-porous & non-shrinking properties.Manufacturer of high temperature fabricated and machinable ceramics including alumina, glass-ceramic, alumino-silicate, boron nitride and zirconium phosphate. Adhesives, coatings and potting compounds to 3200 degrees F,Air firing services for ceramics up to 1650 degrees C also available. Products include insulators, guides, washers, tubes, blocks, & rods for thermal, electrical, corrosion exposure, structural, wear, & semi-conductor operations. Services include machining to tolerances of +/- .0001, ultrasonic core drilling, centerless grinding, milling, & ID & OD threading.Surface grinding, dicing, OD (outer dia.) grinding, ID (inner dia.) grinding, centerless grinding, hole drilling, jig grinding, lapping, honing & polishing service are also available. Diamond grinding with dimensional tolerances of 5 microns & surface finishes of 0.2 microns (8 micro-in.) can be performed.Blanket orders and AutoCAD files & other 3d files accepted.Contact us for your machining ceramic project!

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