A material includes a glass sheet coated on at least part of one of its faces with a stack of thin layers, the stack being coated on at least part of its surface with an enamel layer including zinc and less than 5% by weight of bismuth oxide, the stack further including, in contact with the enamel layer, a layer, called contact layer, which is based on an oxide, the physical thickness of the contact layer being at least 5 nm.

There is disclosed a novel enamel composition that may be applied to all diverse components for a cooking appliance, with excellent cleaning performance and adhesion. The enamel composition of the present disclosure may include 10 to 25% by weight of SiO.sub.2, 15 to 30% by weight of P.sub.2O.sub.5, 1 to 15% by weight of B.sub.2O.sub.3, 10 to 25% of at least one of Na.sub.2O, Li.sub.2O and K.sub.2O, 1 to 5% by weight of NaF, 15 to 35% by weight of at least one of Al.sub.2O.sub.3, TiO.sub.2 and ZrO.sub.2, and 1 to 10% by weight of at least one of Fe.sub.2O.sub.3, Co.sub.3O.sub.4 and NiO, thereby being applicable to coating of components for a cooking appliance such as a burner cap, a grate and a griddle in which food is vulnerable to contamination and subject to thermal shock.

An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 20 to 50% by weight of silicon dioxide (SiO.sub.2), 7 to 12% by weight of boron oxide (B.sub.2O.sub.3), one or more of lithium superoxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O), and 10 to 20% by weight of sodium fluoride (NaF), 1 to 10% by weight of zinc oxide (ZnO), and one or more of molybdenum oxide (MoO.sub.3), bismuth oxide (Bi.sub.2O.sub.3), or cerium dioxide (CeO.sub.2), and 10 to 40% by weight of titanium dioxide (TiO.sub.2). With such an enamel composition, cleaning is possible in a heating condition of a relatively low temperature and without a soaking process using water.

A glass composition, a cooking appliance having a glass composition, and a method of forming a glass composition may include a glass frit including 15 wt. % to 50 wt. % silicon dioxide (SiO.sub.2), 10 wt. % to 30 wt. % of diboron trioxide (B.sub.2O.sub.3), 5 wt. % to 35 wt. % of zinc oxide (ZnO), and 10 wt. % to 30 wt. % of an I-group oxide. The glass frit may further include at least one of aluminum oxide (Al.sub.2O.sub.3), zirconium dioxide (ZrO.sub.2), or titanium dioxide (TiO.sub.2) by about 0.1 wt. % to 5 wt. %; at least one of sodium fluoride (NaF) or aluminum trifluoride (AlF.sub.3) by about 1 wt. % to 5 wt. %; and at least one of cobalt(II) dicobalt(III) oxide (Co.sub.3O.sub.4), nickel(II) oxide (NiO), iron(III) oxide (Fe.sub.2O.sub.3), or manganese(IV) oxide (MnO.sub.2) by about 1 wt. % to 6 wt. %. The I-group oxide may include at least one of lithium oxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O).

A material includes a glass sheet coated on at least part of one of its faces with a stack of thin layers, the stack being coated on at least part of its surface with an enamel layer including zinc and less than 5% by weight of bismuth oxide, the stack further including, in contact with the enamel layer, a layer, called contact layer, which is based on an oxide, the physical thickness of the contact layer being at least 5 nm.

A scaling resistant ceramic glaze and a functional overglaze for Q345 hot rolled alloy steel double sided enameling. The components and the weight percentage of each component of the ground glaze of the enamel are as follows: 3-6% of Al.sub.2O.sub.3, 60-70% of SiO.sub.2; 10-15% of B.sub.2O.sub.3, 10-15% of Na.sub.2O+K.sub.2O+Li.sub.2O, 3-6% of CaF.sub.2, 3-6% of ZrO.sub.2, 2-5% of CoO+NiO, 1-3% of BaMoO.sub.4+Sb.sub.2O.sub.3, 0.3-1.5 of WO.sub.3. The ground glaze is prepared by formulating chemical raw materials in a weight ratio converted by the described chemical composition, stirring thoroughly and mixing uniformly, melting same in a rotary furnace at 1200-1350° C., and then quenching the melt. The provided scaling resistant ceramic glaze and functional overglaze for Q345 hot rolled alloy steel double sided enameling can be applied to Q345 steel that contains C, P, S and the like which are considered harmful elements and contains a variety of common alloy elements.

The present invention relates to glass composites, including filled glass composites and uses thereof. In particular examples, the composites provide improved thermal expansion characteristics. Also described are methods of forming such composites, such as by adding a particle filler to a glass mixture.

A glass composition formed of glass frit including P.sub.2O.sub.5, TiO.sub.2 and group I-based oxide, wherein P.sub.2O.sub.5 is contained in an amount of 20 wt % to 30 wt % based on a total weight of the glass frit, wherein TiO.sub.2 is contained in an amount of 10 wt % to 20 wt % based on the total weight of the glass frit, and wherein the group I-based oxide is contained in an amount of 15 wt % to 30 wt % based on the total weight of the glass frit.

A glass composition formed of a glass frit including P.sub.2O.sub.5, SiO.sub.2, B.sub.2O.sub.3, Al.sub.2O.sub.3, ZrO.sub.2 and group I-based oxide, wherein P.sub.2O.sub.5 is contained in an amount of 20 wt % to 40 wt % based on a total weight of the glass frit, SiO.sub.2 is contained in an amount of to wt % to 30 wt % based on the total weight of the glass frit, B.sub.2O.sub.3 is contained in an amount of 3 wt % to 20 wt % based on the total weight of the glass frit, Al.sub.2O.sub.3 is contained in an amount of 7 to 24 wt % based on the total weight of the glass frit, ZrO.sub.2 is contained in an amount of 1 wt % to 7 wt % based on the total weight of the glass frit, and the group I-based oxide is contained in an amount of 7 wt % to 28 wt % based on the total weight of the glass frit.

A preparation method for a metal matrix composite wire includes the following steps: 1) preparing a metal inner core; 2) preparing a glass-resin mixture; 3) dissolving self-adhesive resin in a solvent to prepare a self-adhesive resin solution; 4) uniformly coating the glass-resin mixture on a surface of the metal inner core, then coating the self-adhesive resin solution on a surface of the glass-resin mixture, and performing drying at a temperature of 80 C. to 150 C.; and 5) repeating the step 4) until a thickness of the glass-resin mixture plus the self-adhesive resin reaches 2 to 10 m. When an inductor is prepared by using the composite wire, the inductor may have relatively good weather resistance, a relatively good dielectric voltage-withstand capability, as well as relatively good high-temperature resistance and electrical performance.