The thermal conductivity of aluminum silicate ceramic fiber blanket at 1000 ℃ is only 15% of that of fireclay brick. Why does it have such a low thermal conductivity? This can be analyzed from the following aspects.
1. Temperature: the thermal conductivity will be different at different temperatures. Generally speaking, it will increase with the increase of temperature.
2. Bulk density: with the increase of bulk density, the thermal conductivity of aluminum silicate fiber will decrease, but the decrease range is decreasing.
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