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A Home of Ceramics
Properties of Ceramics
Differences between Types of Ceramics
Uses of Ceramics
Ceramics in Space
Ceramics in Transportation
The Future of Ceramics
References
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Energy transfer through ceramics
- Porous materials with varying degrees of porosity
- Porosity affects its thermal conductivity
- Heat is conducted through a solid via the transfer of energy between vibrating atoms.
- Energy travels through predominantly via phonons
- Elastic waves that travel at the speed of sound
- Phonon conductivity decreases with increasing temperature
- Photon conductivity is the predominant mechanism of energy transfer at higher temperatures
- Rapid sequence of absorptions and emissions of photons that travel at the speed of light
- Transmission of either type of wave is interrupted by grain boundaries and pores
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