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Physical Sciences › Materials Science › Ceramics and Composites
Sol-gel derived porous ultra-high temperature ceramics
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Conflicts of Interest
Identified Weaknesses
Rating Explanation
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Paper Summary
Paperzilla title
UHTCs: Like a Ceramic Sponge, But Way Hotter!
This review examines various sol-gel methods to synthesize porous ultra-high temperature ceramics (UHTCs), including templating, foaming, and solvent evaporation. These methods allow for tailoring of pore size and porosity, offering materials suitable for thermal insulation in extreme environments like hypersonic vehicles, though further research on applications and some material properties is needed.
Possible Conflicts of Interest
None identified.
Identified Weaknesses
Limited sample size
The study acknowledges that the number of specimens tested is "too small" to provide a comprehensive overview of the properties, limiting the generalizability of the findings.
Limited existing research on applications
The authors note the scarcity of literature on the applications of sol-gel-derived porous UHTCs, which restricts the comparative analysis and broader implications of their work.
Incomplete property characterization
While the study assesses properties like compressive strength and thermal conductivity, it lacks data on crucial aspects like thermal shock resistance and thermal expansion properties.
Rating Explanation
This review provides a valuable overview of sol-gel methods for creating porous UHTCs, which are important for high-temperature applications. The study discusses different processing routes, microstructure control, and relevant material properties, which shows strong research. However, the limited sample sizes and lack of extensive application studies are noteworthy limitations, preventing a perfect score.
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File Information
Original Title:
Sol-gel derived porous ultra-high temperature ceramics
File Name:
s40145-019-0332-6.pdf
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File Size:
4.45 MB
Uploaded:
July 14, 2025 at 10:47 AM
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