Articles may be protected against halide plasma, by applying a rare earth-containing glaze to the surface of the article. The glaze may be a coating comprising; 20 to 90 mol % SiO.sub.2, 0 to 60 mol % Al.sub.2O.sub.3, 10 to 80 mol % rare earth oxides and/or rare earth fluorides (REX), wherein SiO.sub.2+Al.sub.2O.sub.3+REX≥60 mol %.

A paste for ceramic 3D shaping according to the present invention is a paste for ceramic 3D shaping containing a curable resin and inorganic particles, in which the inorganic particles contain ceramic particles and glass particles.

Coated glass or glass ceramic substrates having high temperature resistance, high strength, and a low coefficient of thermal expansion. The coating includes pores, is fluid-tight and suitable for coating a temperature-resistant, high-strength glass or glass ceramic substrate with a low coefficient of thermal expansion, and to a method for producing such a coated substrate.

Coated glass or glass ceramic substrates having high temperature resistance, high strength, and a low coefficient of thermal expansion. The coating includes pores, is fluid-tight and suitable for coating a temperature-resistant, high-strength glass or glass ceramic substrate with a low coefficient of thermal expansion, and to a method for producing such a coated substrate.

Disclosed herein are methods for forming low melting point glass fibers comprising providing a glass feedstock comprising a low melting point glass and melt-spinning the glass feedstock to produce glass fibers, wherein the glass transition temperature of the glass fibers is less than or equal to about 120% of the glass transition temperature of the glass feedstock. The disclosure also relates to method for forming low melting point glass frit further comprising jet-milling the glass fibers. Low melting point glass frit and fibers produced by the methods described above are also disclosed herein.

Disclosed herein are methods for forming low melting point glass fibers comprising providing a glass feedstock comprising a low melting point glass and melt-spinning the glass feedstock to produce glass fibers, wherein the glass transition temperature of the glass fibers is less than or equal to about 120% of the glass transition temperature of the glass feedstock. The disclosure also relates to method for forming low melting point glass frit further comprising jet-milling the glass fibers. Low melting point glass frit and fibers produced by the methods described above are also disclosed herein.

A composition for enamel may include 20 to 45 wt % of SiO.sub.2; 1 to 15 wt % of B.sub.2O.sub.3, 10 to 20 wt % of one or more of Na.sub.2O, K.sub.2O, and Li.sub.2O, 1 to 5 wt % of NaF, 1 to 10 wt % of ZnO, 5 to 15 wt % of TiO.sub.2, 3 to 7 wt % of MoO.sub.3; 5 to 15 wt % of Bi.sub.2O.sub.3, 1 to 5 wt % of CeO.sub.2, and 1 to 10 wt % of one or more of MnO.sub.2, Fe.sub.2O.sub.3, and Co.sub.3O.sub.4. The composition may be used to coat a cooking appliance for easy removal of contaminants at room temperature.

A composition for enamel may include 20 to 45 wt % of SiO.sub.2; 1 to 15 wt % of B.sub.2O.sub.3, 10 to 20 wt % of one or more of Na.sub.2O, K.sub.2O, and Li.sub.2O, 1 to 5 wt % of NaF, 1 to 10 wt % of ZnO, 5 to 15 wt % of TiO.sub.2, 3 to 7 wt % of MoO.sub.3; 5 to 15 wt % of Bi.sub.2O.sub.3, 1 to 5 wt % of CeO.sub.2, and 1 to 10 wt % of one or more of MnO.sub.2, Fe.sub.2O.sub.3, and Co.sub.3O.sub.4. The composition may be used to coat a cooking appliance for easy removal of contaminants at room temperature.

Provided is a glass composition comprising a glass frit containing P.sub.2O.sub.5, SiO.sub.2, B.sub.2O.sub.3, Al.sub.2O.sub.3, ZrO.sub.2 and a group I-based oxide, wherein the P.sub.2O.sub.5 is contained in an amount of 10 to 30% by weight based on a total weight of the glass frit, wherein the SiO.sub.2 is contained in an amount of 20 to 40% by weight based on the total weight of the glass frit, wherein the B.sub.2O.sub.3 is contained in an amount of 5 wt % to 18 wt % based on the total weight of the glass frit, wherein the Al.sub.2O.sub.3 is contained in an amount of 15 to 30% by weight based on the total weight of the glass frit, wherein the ZrO.sub.2 is contained in an amount of 1 wt % to 8 wt % based on the total weight of the glass frit, wherein the Group I-based oxide is contained in an amount of 15 to 30% by weight based on the total weight of the glass frit.

Provided is a glass composition comprising a glass frit containing P.sub.2O.sub.5, SiO.sub.2, B.sub.2O.sub.3, Al.sub.2O.sub.3, ZrO.sub.2 and a group I-based oxide, wherein the P.sub.2O.sub.5 is contained in an amount of 10 to 30% by weight based on a total weight of the glass frit, wherein the SiO.sub.2 is contained in an amount of 20 to 40% by weight based on the total weight of the glass frit, wherein the B.sub.2O.sub.3 is contained in an amount of 5 wt % to 18 wt % based on the total weight of the glass frit, wherein the Al.sub.2O.sub.3 is contained in an amount of 15 to 30% by weight based on the total weight of the glass frit, wherein the ZrO.sub.2 is contained in an amount of 1 wt % to 8 wt % based on the total weight of the glass frit, wherein the Group I-based oxide is contained in an amount of 15 to 30% by weight based on the total weight of the glass frit.