| 摘要 |
PURPOSE: Prepared is ceramics composition mainly composed of potassium feldspar, which is capable of blocking electromagnetic waves and also emitting far-infrared rays beneficial to human. CONSTITUTION: The ceramics composition comprises 20-60wt.% of potassium feldspar comprising 66.52wt.% of SiO2, 18.36wt.% of Al2O3, 11.83wt.% of K2O, 2.42wt.% of Na2O, 0.08wt.% of Fe2O3, 0.06wt.% of MnO and a balance of cerium, selenium, cobalt, radon, 10-20wt.% of sericite, 10-20wt.% of muscovite, 0.1-0.6wt.% of dolomite, 0.1-0.6wt.% of elvan, 0.1-0.6wt.% of zirconium, 0.1-0.6wt.% of ruby, 0.1-0.6wt.% of ocher, 0.1-0.6wt.% of charcoal.
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