Compositions: ceramic inventions 06/06

20060142138 - Ceramic material and optical device including the same: A ceramic material has a thermal expansion coefficient of 50×10−7/° C. or less, an absolute value of the difference between the relative refractive indexes of silica glass and the ceramic material of 0.2 or less at a wavelength of 1550 nm, and a light attenuation coefficient of 0.3 dB/cm or...

20060142139 - Heavy metal oxide thin films active and passive planar waveguide and optical devices: The purpose of the invention is heavy metal oxide thin films and their applications. These thin films will serve to produce doped and undoped planar wave-guides and planar lightwave circuit (PLC) for passive and active optical devices (amplifier, laser, filter, multiplexer, attenuators and . . . ). These thin films...

20060142140 - Embedding fiber improvements using ultrasonic consolidation: Fibers and layers are co-applied using ultrasonic consolidation and providing steps and/or materials to maintain collimation of the fibers. According to one preferred embodiment the mechanism is a scrim. Alternatively the mechanism may include a material having one or more fibers under a foil layer. The mechanism may further include...

20060142141 - Dielectric ceramic composition, dielectric ceramic and laminated ceramic part including the same: A dielectric ceramic composition which can be sintered at such a temperature of about 800 to 1000° C. as to permit incorporation of and multilayer formation with a low resistant conductor such as Ag or Cu by the simultaneous sintering with the low resistant conductor, which is sintered to form...

20060135340 - Spherical nano-composite powder and a method of preparing the same: The present invention provides a composition and method of producing nano-composite powder consisting essentially of hydroxyapatite (HA) and zirconium oxide (ZrO2). The method comprises the steps of reacting orthophosphoric acid with calcium hydroxide to form a HA suspension, adding ZrO2 suspension to the HA suspension to form a composite feedstock,...

20060135341 - B-quartz glass-ceramic extreme ultraviolet optical elements and a method of making them: The invention is directed to a glass-ceramic material suitable for use in the manufacturing of EUVL reflective optics. The glass-ceramic materials is made from a composition that comprises (in wt. %): SiO2=64-70; Al2O3=18-24; Li2O=1.6-3.8; MgO=0.8-1.5; ZnO=0.7-4.2; BaO=0.1-1.4; TiO2=2.0-3.5; ZrO2=1.25-2.5; As2O3=0.1-1.0; Na2O<0.5; and K2O<0.5; and the glass-ceramic material has an aggregate...

20060135342 - Method of making alkali metal silicate glass, feedstock, and glass article formed therefrom: A method of making an alkali metal silicate glass includes preparing an alkali metal feedstock having a first desired level of alkali metal, the alkali metal feedstock being essentially free of an element that absorbs between 0.8 and 2.5 μm in any valence state. The method also includes combining and...

20060135343 - Method of manufacturing porous product, porous product and honeycomb structure: A sintering aid for promoting sintering of ceramic particles and fine particles that are the same materials as ceramic particles and have smaller average particle diameter are mixed to obtain a puddle. The average particle diameter of ceramic particles is preferably about in a range of 5 to 100 μm;...

20060135344 - Composite components for use in high temperature applications: Fibrous monolith composites suitable for use in high temperature environments and/or harsh chemical environments are provided, along with methods of preparation thereof. The fibrous monolith composites exhibit such beneficial properties as enhanced strength, corrosion resistance, thermal shock resistance and thermal cycling tolerance....

20060135345 - Permeable refractory material for a gas purged nozzle: A permeable, resin-bonded composition is described, which finds utility as a porous element in a gas-injection nozzle. The permeable composition is notably useful in a canless, resin-bonded, gas-injection nozzle, characterized by an impermeable, resin-bonded composition replaces the metal can. Advantageously, the resin-bonded compositions include an oxygen getter for scrubbing oxygen...

20060128546 - Glass-ceramic composite material, ceramic film layer composite or microhybird comprising said composite material and method for production thereof: A glass-ceramic composite material is described having a matrix that is at least from place to place of a glass type, and having a ceramic filler as well as a ceramic foil, a ceramic laminate or microhybrid using this composite material, the matrix containing lithium, silicon, aluminum and oxygen, and...

20060128547 - Composition for ceramic substrate, ceramic substrate, process for producing ceramic substrate and glass composition: A ceramic substrate composition is provided which can be co-fired with a low-melting metal and exhibits excellent dielectric characteristics at high frequencies, particularly tens of gigahertz. The ceramic substrate composition mainly contains a glass represented by aB2O3-bRe2O3-cZnO, wherein the molar ratios (a, b, and c) fall within a region defined...

20060128548 - Bondcoat for the application of tbc's and wear coatings to oxide ceramic matrix: A bond coat composition is provided for applying to the surface of a ceramic composite component between the composite substrate and the thermal barrier coat. The composition includes an alumina powder, a silica-yielding liquid, glass frits, and sufficient solvent to permit mixing of the components and forming a bond coat....

20060128549 - Lead-free phosphate glasses: Disclosed are zinc niobium phosphate glasses consisting essentially, expressed in terms of mole percent on the oxide basis of, 40-65% P2O5, 25-37% ZnO, 0.1-15% Nb2O5, 0-6% Al2O3, 0-5% Bi2O3, 0-3% Na2O and 0-5% B2O3, said glass exhibiting glass transition temperature below 450° C., a dilatometer softening point below 500° C.,...

20060128550 - Method for producing borosilicate glass, borate glass and crystallising materials containing boron: A process for producing a borate-containing, low-alkali material is provided. The process includes induction-heating a boron-containing melting material directly in an appliance using an alternating electromagnetic field. The, melting material as a constituent includes at least one metal oxide, the metal ions of which have a valency of at least...

20060128551 - Glass material and method of preparing said glass: A nitride glass with the general formula αxβyγz is provided wherein α is a glass modifier comprising at least one electropositive element. β comprises Si, B, Ge, Ga and/or Al. γ is N or N together with O, whereby the atomic ratio of O:N is in the interval from 65:35...

20060128552 - Silicon nitride sintered body having high heat conductivity and silicon nitride structural element: A silicon nitride sintered body exhibiting a high heat conductivity, the silicon nitride sintered body includes a rare earth element in an amount of 2 to 17.5 mass % in terms of the oxide thereof, Fe in an amount of 0.07 to 0.5 mass % in terms of the oxide...

20060128553 - Electronic device, dielectric ceramic composition and production method of the same: A production method of a dielectric ceramic composition using a reacted material obtained by making a main component including barium titanate react with a fourth subcomponent including an oxide of R (note that R is at least one selected from Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb,...

20060116272 - Aluminum nitride sintered body: The object of the present invention is to provide a susceptor with superior thermal uniformity by minimizing pores in an aluminum nitride sintered body. In an aluminum nitride sintered body according to the present invention, the tin content and sulfur content are controlled so that they are no more than...

20060116273 - Dielectric ceramic composition and electronic device: According to the present invention, a capacitor device body 10, wherein dielectric layers 2 comprising dielectric ceramic composition and internal electrode layers 3 are alternately laminated, characterized in that said dielectric ceramic composition comprises a plural number of crystal particles 2a wherein said crystal particles 2a form Ca dispersing area...

20060116274 - Thermal spraying powder, thermal spraying method, and method for forming thermal spray coating: A thermal spraying powder contains granulated and sintered particles of an yttrium-aluminum double oxide formed by granulating and sintering raw-material particles. The crushing strength of the granulated and sintered particles is 15 MPa or more, and 10% particle size of the granulated and sintered particles is 6 μm or more....