Thermal shock resistance of porous Al2O3-mullite ceramics
Source abstract
Abstract
Abstract In this study, the effects of two types of SiO 2 sources (amorphous micro-sized SiO 2 particles and in situ oxidised SiC nanopowder) on the thermal shock resistance of porous Al 2 O 3 -mullite ceramics were compared. The thermal shock resistance was evaluated by measuring the elastic modulus determined by the non-destructive impulse excitation technique after each thermal shock cycle. It was found that materials modified by addition of 2.5 and 5.0 wt% of SiC nanopowder (equivalent to 3.7 and 7.3 wt% of SiO 2 ) have an improved thermal shock resistance compared to unmodified corundum ceramics and ceramics modified with amorphous micro-sized SiO 2 .
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Nuclear materials and radiation effects
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References (20)
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