Baxter Ceramics Puzzle 11

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Across
  1. 4. shock to stresses imposed on a ceramic by the volume changes associated with sudden shifts in temperature
  2. 6. clay kaolinitic sedimentary clays that commonly consist of 20–80% kaolinite, 10–25% mica, 6–65% quartz
  3. 7. an earthy material that is plastic when moist but hard when fired
  4. 8. ware clay prepared but not fired
  5. 11. where the molten glaze withdraws into 'islands 'leaving bare clay patches
  6. 13. the phenomenon that produces a network of fine cracks on the surface of a material
  7. 14. blows This is caused when clay bricks contain small amounts of lime
  8. 16. a fault that can occur during the firing of ceramic articles
  9. 17. dry Refers to clay which is ready to be fired
  10. 18. a firing strategy that lowers the risk of lime spalling
  11. 19. dunts ware cooled too quickly after it has been fired
  12. 21. fit the thermal expansion compatibility between glaze and clay body
Down
  1. 1. ware ware that is cracked due to the stresses of uneven expansion and/or contraction
  2. 2. inversions refers to the sudden volume change in crystalline quartz particles experience
  3. 3. refers to how flexible a clay or clay body is
  4. 5. refers to a specific stage during the drying of a pot or other clay object
  5. 7. dunts cracking that occurs in fired ceramic bodies as a result of a thermally induced stress
  6. 8. makes it expand and increases its weight
  7. 9. ware biscuit refers to any pottery that has been fired in a kiln without a ceramic glaze
  8. 10. when they dry because of particle packing that occurs as inter-particle water evaporates
  9. 12. ware an impervious layer or coating of a vitreous substance which has been fused to a ceramic body through firing
  10. 15. clay clay that usually owes its reddish color to oxide of iron
  11. 17. body term used to describe the color of a non-vitreous or semi-vitreous oxidation fired clay that has enough iron to take away its claim to being white yet not enough to make it a ten burning
  12. 18. glaze defect that results in tiny flakes of glaze peeling off edges of ceramic ware
  13. 20. caused by a fault in a solid pottery material, such as dry clay, bisque and fired glazes