Emily Frentzel - Puzzle 10

3. you glaze the inside of your greenware pot when it is leather hard and then the outside when it is bone dry
4. this is the period in the kiln firing where the final mechanical water is being removed
6. a fault that can occur during the firing of ceramic articles
10. the cracking that occurs in fired ceramic bodies due to stress
12. progressive partial fusion of a clay, or of a body, a result of a firing process
13. consist of opaque matter that absorbs or scatters visible light
15. a rare silicate mineral of post-clay genesis
16. a flaw in ceramic ware attributed to the decomposition of iron pyrites
18. the degrading of ceramics due to interaction
19. a firing defect in which blisters form within a clay body, causing large lumps on the surface
20. used in glasses, glazes, and ceramic bodies to lower the higher melting point

1. includes drying of powder and shaped bodies
2. the thermal expansion compatibility between glaze and clay body
5. the second firing of a piece of pottery
7. formed by fusing inorganic materials into glass by heating them
8. the glaze melts of the fired body and forms a vitreous surface
9. a crystalline form of silica formed in the matrix of clay bodies
11. any pottery that has been fired in a kiln without a ceramic glaze
14. the degree of fluidity
17. the sudden volume change in crystalline quartz particles
19. when a substance in a product being fired has a lower burning point than what it is being fired wiht and burns away