Enamel composition, method for preparing enamel composition, and cooking appliance

A method of preparing an enamel composition, comprising:

• providing materials for the enamel composition, the materials comprising;
• 15 to 50 wt % of phosphorus pentoxide (P2O5);
• 5 to 20 wt % of one or more of lithium superoxide (Li2O), sodium oxide (Na2O), or potassium oxide (K2O);
• 1 to 5 wt % of one or more of sodium fluoride (NaF), calcium fluoride (CaF2), or aluminum fluoride (AlF3);
• 1 to 35 wt % of one or more of magnesium oxide (MgO), barium oxide (BaO), or calcium oxide (CaO);
• 5 to 30 wt % of one or more of manganese dioxide (MnO2), molybdenum-oxide trioxide (MoO3), bismuth oxide (Bi2O3), or nickel oxide NiO;
• and
• 2 or less wt % of titanium dioxide (TiO2), wherein when the enamel composition includes both MoO3 and Bi2O3, 2 or less wt % of any one of MoO3 or Bi2O3 is included, melting the materials;
• and
• cooling the melted materials in a quenching roller to form the enamel composition, wherein the enamel composition further comprises 20 or less wt % of silicon dioxide (SiO2).