Table 1 Element composition of tile and variable glaze sample pieces after vacuum drying.
Composition element | Si | Al | P | Zr | K | Mg | Na | Ca | Fe | Ti | Cu | Co | Ba | Impurity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tile | 66.3 | 23.1 | 2.7 | 2.2 | 2.1 | 1.7 | 1.1 | 0.3 | 0.3 | 0.2 | – | – | – | – |
Oribe | 57.6 | 15.1 | 1.1 | 2.9 | 4.9 | – | – | 11.2 | 0.7 | 0.2 | 3.3 | – | – | 0 |
Namako | 57.8 | 10.9 | – | 1.7 | 3.1 | 1.3 | – | 9.8 | 0.8 | 4.6 | – | 2.5 | 5 | 2.5 |
Irabo | 42.6 | 19.2 | 2.1 | 2 | 2.8 | 2.3 | 1.4 | 21.9 | 3.5 | – | – | – | – | 2.2 |
Toumei | 69.1 | 12.5 | – | 0.8 | 4.6 | – | 1.3 | 8.8 | – | 2.8 | – | – | – | 0.1 |
