Abstract: Method for manufacturing slab articles from a mix, comprising the steps of a) preparing a mix comprising a preponderant amount of a glass frit and a binder, b) distributing the mix in a support, c) compacting the mix, d) drying the mix, e) sintering the mix and f) cooling the article. The glass frit comprises a weight amount of silica (SiO2) comprised between 62% and 68%, a weight amount of alumina (Al2O3) comprised between 3% and 5%, a weight amount of potassium oxide (K2O) comprised between 3% and 5%, a weight amount of calcium oxide (CaO) comprised between 18% and 26% and a weight amount of magnesium oxide (MgO) comprised between 1% and 4% The cooling step is performed in a controlled manner by modulating the cooling speed in a temperature range not greater than 1.160° C. and not less than 1.000° C. in order to perform the at least partial devitrification and crystallization of the glass frit. The invention also relates to a glass frit and an article in slab form.

Abstract: A sealing glass is provided that includes SiO2, Al2O3 having a content of less than 2% by weight, is free of PbO except for unavoidable impurities, a coefficient of linear thermal expansion (?20-300) of more than 10*10?6/K, a dielectric constant (?r) in the range from at least 7.10 to not more than 7.80 at a measurement frequency of 1 MHz and a temperature of 25° C., and a glass transition temperature (Tg) in a range from 400 to 550° C.

Abstract: Disclosed herein are embodiments of low temperature co-fireable barium tungstate materials which can be used in combination with high dielectric materials, such as nickel zinc ferrite, to form composite structures, in particular for isolators and circulators for radiofrequency components. Embodiments of the material can include flux, such as bismuth vanadate, to reduce co-firing temperatures.

Abstract: A ceramic electronic component includes a body including a dielectric layer and an internal electrode, and an external electrode disposed on the body and connected to the internal electrode. The dielectric layer includes a plurality of dielectric grains, and at least one of the plurality of dielectric grains has a core-dual shell structure having a core and a dual shell. The dual shell includes a first shell surrounding at least a portion of the core, and a second shell surrounding at least a portion of the first shell, and a concentration of a rare earth element included in the second shell is more than 1.3 times to less than 3.8 times a concentration of a rare earth element included in the first shell.

Abstract: Ceramic honeycomb bodies with a matrix of intersecting walls having an interior portion with a first average bulk porosity, and a skin having a second average bulk porosity, wherein the second average bulk porosity is less than the first average bulk porosity. Methods of manufacturing a ceramic honeycomb bodies include providing a firing cycle for the ceramic honeycomb structure such that at least the skin of the honeycomb structure is subjected to a thermal spike in firing temperature while the interior portion of the matrix is subjected to a lesser spike in firing temperature.

Abstract: A method of forming a composite material for use as an isolator or circulator in a radiofrequency device comprises providing a low temperature fireable outer material, the low fireable outer material having a garnet or scheelite structure, inserting a high dielectric constant inner material having a dielectric constant above 30 within an aperture in the low temperature fireable outer material, and co-firing the lower temperature fireable outer material and the high dielectric constant inner material together at temperature between 650-900° C. to shrink the low temperature fireable outer material around an outer surface of the high dielectric constant inner material to form an integrated magnetic/dielectric assembly without the use of adhesive or glue.

Abstract: A glass sheet of the present invention is characterized in that: the glass sheet has a refractive index nd of from 1.55 to 2.30; an angle formed by a principal surface and an end surface is from 85° to 90°; and the end surface has a surface roughness Ra of 1 ?m or less.

Abstract: A process of manufacturing a chromium alloyed molybdenum silicide portion of a heating element comprising the steps of: forming a mixture of a chromium powder and a silicon powder; reacting the mixture to a reaction product in an inert atmosphere at a temperature of at least 1100° C. but not more than 1580° C.; converting the reaction product to a powder comprising CrSi2; forming a powder ceramic composition by mixing the powder comprising CrSi2 with a MoSi2 powder and optionally with an extrusion aid; forming the portion of the heating element; and sintering the portion of the heating element in a temperature of from about 1450° C. to about 1700° C.; characterized in that the chromium powder and the silicon powder are provided separately to the mixture.

Abstract: A tinted glass composition and glass article including the same, the composition including: about 45 mol % to about 80 mol % SiO2; about 6 mol % to about 22 mol % Al2O3; 0 mol % to about 25 mol % B2O3; about 7 mol % to about 25 mol % of at least one alkaline earth oxide selected from MgO, CaO, SrO, BaO, and combinations thereof, about 0.5 mol % to about 20 mol % CuO; 0 mol % to about 6 mol % SnO2, SnO, or a combination thereof, 0 mol % to about 1.0 mol % C; 0 mol % to about 5 mol % La2O3; and 0 mol % to about 10 mol % PbO, and that is substantially free of alkali metal.

Abstract: Disclosed are embodiments of making a high Q ceramic material. The method includes providing Ba3NiTa2O9 and incorporating one of Ba2MgWO6, Ba8LiTa5WO24, Ba8LiTa5WO24, Ba2MgWO6, Ba3LaTa3O12, Ba8LiTa5WO24, BaLaLiWO6, Ba4Ta2WO12, Ba2La2MgW2O12, BaLaLiWO6, Sr3LaTa3O12, and SrLaTaO12 into the Ba3NiTa2O9 to form a solid solution having a high Q value of greater than 12000 at about 10 GHz.

Abstract: The disclosure relates to a glass and a melt solder for the passivation of semiconductor components, the use of the glass or the melt solder for the passivation of semiconductor components, a passivated semiconductor component and a method for passivating semiconductor components.

Abstract: Provided is a glass having an excellent infrared transmittance and suitable for use in infrared sensors. An infrared transmitting glass containing, in terms of % by mole, over 0 to 50% Ge, over 0 to 50% Ga, over 0 to 50% Si, 20 to 90% Te, 0 to 40% Ag+Al+Ti+Cu+In+Sn+Bi+Cr+Sb+Zn+Mn, and 0 to 40% F+Cl+Br+I.

Abstract: Described herein is a protective coating composition that provides erosion and corrosion resistance to a coated article (such as a chamber component) upon the article's exposure to harsh chemical environment (such as hydrogen based and/or halogen based environment) and/or upon the article's exposure to high energy plasma. Also described herein is a method of coating an article with the protective coating using electronic beam ion assisted deposition, physical vapor deposition, or plasma spray. Also described herein is a method of processing wafer, which method exhibits, on average, less than about 5 yttrium based particle defects per wafer.

Abstract: Disclosed are embodiments of making a high Q ceramic material. The method includes providing Ba3CoTa2O9 and incorporating one of Ba2MgWO6, Ba8LiTa5WO24, Ba8LiTa5WO24, Ba2MgWO6, Ba3LaTa3O12, Ba8LiTa5WO24, BaLaLiWO6, Ba4Ta2WO12, Ba2La2MgW2O12, BaLaLiWO6, Sr3LaTa3O12, and SrLaTaO12 into the Ba3CoTa2O9 to form a solid solution having a high Q value of greater than 12000 at about 10 GHz.

Abstract: A silica-based substrate includes a glass phase and a dispersed phase having carbon, such that the silica-based substrate has a thickness of at least 10 gm. Also disclosed is a method of forming a silica-based substrate, the method including contacting a porous silica soot preform with an organic solution having at least one hydrocarbon precursor to form a doped silica soot preform and heating the doped silica soot preform in an inert atmosphere to form the silica-based substrate.

Abstract: A silica glass for a radio-frequency device has an OH group concentration being less than or equal to 300 wtppm; an FQ value being higher than or equal to 90,000 GHz at a frequency of higher than or equal to 25 GHz and lower than or equal to 30 GHz; and a slope being greater than or equal to 1,000 in a case where the FQ value is approximated as a linear function of the frequency in a frequency band of higher than or equal to 20 GHz and lower than or equal to 100 GHz.

Abstract: Disclosed are embodiments of tungsten bronze crystal structures that can have both a high dielectric constant and low temperature coefficient. Embodiments of the material can be useful for radiofrequency applications such as resonators and antennas.

Abstract: A ceramic component having a ceramic main part containing AxByC1?x?vTi1?y+wO3*(Mn2P2O7)z*Du, in which A is a first dopant selected from a group including neodymium, praseodymium, cerium, and lanthanum, B is a second dopant selected from a group including niobium, tantalum, and vanadium, C is selected from a group including calcium, strontium, and barium, and D includes a metal selected from a group including aluminum, nickel, and iron. x is the proportion of A, y is the proportion of B, v is the proportion of A vacancies, w is the proportion of excess titanium, z is the proportion of Mn2P2O7, u is the proportion of D, and the following applies: 0.0?x<0.1, 0.0?y<0.1, 0?v<1.5*x, 0?w<0.05, 0.01?z<0.1, 0?u<0.05. A method for producing the ceramic component is also disclosed.

Abstract: A composition for enamel may include 10 to 45 wt % of SiO2; 1 to 10 wt % of B2O3, 10 to 20 wt % of one or more of Na2O, K2O, and/or Li2O, 1 to 5 wt % of NaF, 1 to 10 wt % of ZnO, 5 to 15 wt % of TiO2, 3 to 7 wt % of MoO3, 5 to 15 wt % of Bi2O3, 1 to 5 wt % of CeO2, and 0.5 to 10 wt % of one or more of MnO2, Fe2O3, and/or Co3O4. The composition may be used to make a coating layer provided on a cooking appliance so that contaminants may be easily cleaned from the cooking appliance at a room temperature.

Abstract: A glass-ceramic includes a silicate-containing glass and crystals within the silicate-containing glass. The crystals include non-stoichiometric tungsten and/or molybdenum sub-oxides, and the crystals are intercalated with dopant cations.