TECHNOLOGY FOCUS - CHEMICAL ENGINEERING - Preferred Method: In sealing at least two inorganic substrates together using the induction energy source, the induction heating has a frequency of 60-350 kHz. The induction heating has a power of 1-300 kW, and a voltage of 1-600 volts. The induction provides a heat flux of 0.1-15 kW/cm2. The induction heats at least a portion of the substrates and paste at a rate of 0.1-10,000 degrees C/second. One of the substrates is glass and the other substrate is metal. The glass frit comprises a glass with softening point 250-800 degrees C. The glass frit is selected from bismuth glass, lead glass, zinc glass, barium glass, calcium glass, alkali silicate glasses, vanadium glass, telluride glass, phosphate glass and combinations. The glass frit is selected from bismuth glasses, zinc glasses, alkali silicate glasses and combinations. The induction coupling additive is selected from ferrites, nickel (Ni)-zinc (Zn) ferrites, manganese (Mn)-Zn ferrites, magnesium (Mg)-Mn ferrites, ferritic stainless steel, 430 stainless steel, copper, aluminum, silver, ferromagnetic materials, iron oxide (Fe3O4), Fe2O3 glasses, Fe2O3 glass-ceramics, cobalt oxide (Co2O3) glasses, Co2O3 glass-ceramics, manganese oxide (MnO) glasses, MnO-glass ceramics, MgO0.5MnO0.5Fe2O3 and combinations. The glass frit further comprises a manganese-containing constituent selected from bismuth manganese pigments, perovskite manganites, bismuth manganese oxide (Bi2Mn4O10), Bi12MnO20 and a bismuth-manganese pigment having a mole ratio of bismuth oxide (Bi2O3) to manganese oxide (MnO2) of 5:1-1:5. In bonding first and second glass panels to one another, so as to hermetically seal and isolate the cavity defined between it, at least one of the first and second glass frits further comprises or can react to precipitate at least one selected from ferrites, Ni-Zn ferrites, Mn-Zn ferrites, Mg-Mn ferrites, ferritic stainless steel, 430 stainless steel, ferromagnetic materials, Fe3O4, Fe2O3 glasses, Fe2O3 glass-ceramics, Co2O3 glasses, Co2O3 glass-ceramics, MnO glasses, MnO-glass ceramics, MgO0.5MnO0.5Fe2O3 and combinations. The induction coupling additives are particulates having shapes selected from high sphericity, low sphericity, irregular, equant, ellipsoidal, tabular, cylindrical, flake, whisker and wire geometries. The induction coupling additive D50 particle size is in the range of 5-100,000 nm. Moreover, a vacuum or inert atmosphere is sealed in a cavity bounded by the at least two inorganic substrates and a seal formed by the induction heating of the paste. Alternatively, forming the hermetic seal between two inorganic substrates comprises: (a) applying to a first inorganic substrate a paste composition including a glass frit and an induction coupling additive; (b) positioning a circuit feedthrough within the paste composition; (c) bringing at least a second substrate into contact with the paste composition; and (d) subjecting the paste to inductive heating thus sintering and flowing the paste composition and forming a hermetic seal between the two inorganic substrates. Preferred Composition: Alternatively, the lead-free and cadmium-free sealing glass frit composition, comprises, prior to firing, (a) 5-65 mol% ZnO, (b) 10-65 mol% silicon dioxide (SiO2), (c) 5-55 mol% B2O3 + aluminum oxide (Al2O3), (d) 0.1-45 mol% of at least one selected from lithium oxide (Li2O), sodium oxide (Na2O), potassium oxide (K2O), cesium oxide (Cs2O), and combinations, (e) 0.1-20 mol% of at least one selected from magnesium oxide (MgO), calcium oxide (CaO), barium oxide (BaO), strontium oxide (SrO) and combinations, and (f) 0.1-40 mol% of at least one selected from tellurium oxide (TeO2), thallium oxide (Tl2O), vanadium oxide (V2O5), tantalum oxide (Ta2O5), germanium oxide (GeO2) and combinations. In a second alternative case, the lead-free and cadmium-free sealing glass frit composition comprises, prior to firing, (a) 5-55 mol% Li2O+Na2O+K2O, (b) 2-26 mol% TiO2, (c) 5-75 mol% B2O3 + SiO2, (d) 0.1-30 mol% of at least one selected from vanadium oxide (V2O5), antimony oxide (Sb2O5), phosphorus oxide (P2O5), and combinations, (e) 0.1-20 mol% of at least one selected from MgO, CaO, BaO, SrO, and combinations, (f) 0.1-40 mol% of at least one selected from TeO2, Tl2O, Ta2O5, GeO2 and combinations, and (g) 0.1-20 mol% fluorine (F). Preferred Module: Alternatively, the solar cell module comprises a glass cylinder having a transmittance of greater than 80% at 550 nm, in which are situated a set of silicon solar cells in electrical contact with one another and a conductive metal endcap, the endcap hermetically sealed to the cylinder by induction heating of a portion of the sealing glass frit composition.