Across
- 2. What alters the vitrification temperature of the clay?
- 3. What makes up 5%-50% of an earthenware body clay?
- 5. Cristobalite is available as a what?
- 7. Flint was first formed as what type of rock?
- 9. What is a crystalline form of silica?
- 12. What flux melts at 2012-2192f?
- 13. Silica sand is often used instead of what material?
- 14. Silica sand is also used as a lubricant on the shelves of what?
- 16. A clay body is mode up of how many components?
- 19. Fluxes do not act how?
Down
- 1. what flux makes up 25% of a clay body?
- 2. Alumina is most commonly used in what type of ceramic material?
- 4. Flint is not for what?
- 6. Flint is usually contaminated with what?
- 8. Fluxes and what are the most important materials to change clay.
- 9. What flux melts at 2102-2372f?
- 10. What is it called when you add extra things to clay after you dig it up?
- 11. What material acts as a hardener in glass, glazes, clays, and all ceramic materials.
- 15. What is the mineral form of silica powder used in ceramic glazes and clay bodies.
- 17. Alumina has the same sintered cystal body as sapphire and what other gem stone.
- 18. What is often used to reduce body firing shrinkage and fired warpage?