Episode

On black cores and degassing: analyzing a defect

Podcast
Apparently invisible. Chemistry in ceramics.
Published
Dec 4, 2025
Duration seconds
569
Processing state
not_requested
Canonical source
https://www.spreaker.com/episode/on-black-cores-and-degassing-analyzing-a-defect--68851793
Audio
https://api.spreaker.com/download/episode/68851793/zs_64_en.mp3
JSON
/v1/public/podcasts/apparently-invisible-chemistry-in-ceramics-5864808/episodes/on-black-cores-and-degassing-analyzing-a-defect
Markdown
/podcast/apparently-invisible-chemistry-in-ceramics-5864808/on-black-cores-and-degassing-analyzing-a-defect.md

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Summary

This episode provides a quick overview of the “black core” effect—an internal discoloration in porcelain tiles, typically caused by incomplete oxidation of the ceramic body due to trapped organic residues. It highlights the production conditions that make the defect more likely to appear and then outlines practical corrective strategies to prevent it. All in just ten minutes.