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For refractory materials, cite three characteristics that improve with and two characteristics that are adversely affected by increasing porosity.
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For refractory materials, cite three characteristics that improve with and two characteristics that are adversely affected by increasing porosity.

User Wael Awada
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For refractory ceramic materials, three characteristics that improve with increasing porosity are (1) decreased thermal expansion and contraction upon thermal cycling, (2) improved thermal insulation, and (3) improved resistance to thermal shock.
User Kayhan
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