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7306845 Optical materials and optical devices  
Nanoscale particles, particle coatings/particle arrays and corresponding consolidated materials are described based on an ability to vary the composition involving a wide range of metal and/or...
7297645 Opalescent glass-ceramic product  
An opalescent glass-ceramic product, especially for use as a dental material or as an additive to or component of dental material, including SiO 2 , Al 2 O 3 , P 2 O 5 , Na 2 O, K 2 O, CaO and...
7285507 Ceramic composition being fired at low temperature and having high strength and method for preparing the same, and laminated electronic parts using the same  
A high-strength, low-temperature-sintered ceramic composition having a structure comprising a SrAl 2 Si 2 O 8 Crystal and an Al 2 O 3 crystal, the SrAl 2 Si 2 O 8 crystal being composed of...
7229939 Multilayer ceramic substrate and method for manufacture thereof  
A multilayer ceramic substrate which is obtained by firing multilayers of ceramic green sheets each having a dielectric layer, made of a glass-ceramic material comprising a mixture of alumina and a...
7172649 Leucite glass ceramic doped with nanoscale metal oxide powder, method for producing the same, and dental materials and dental products formed therefrom  
The disclosure relates to a leucite glass ceramic doped with nanoscale metal oxide, to a doped leucite glass ceramic powder suitable for its production, to a method for producing the doped leucite...
6984261 Use of ceramics in dental and orthodontic applications  
The invention relates to uses of glasses and glass-ceramics in dental and orthodontic applications.
6942713 Ceramic body based on aluminum titanate  
An aluminum titanate-based ceramic body having a composition a formula comprising a(Al 2 O 3 .TiO 2 )+b(CaO.Al 2 O 3 .2SiO 2 )+c(SrO.Al 2 O 3 .2SiO 2 )+d(BaO.Al 2 O 3 .2SiO 2 )+e(3Al 2 O 3 .2SiO 2...
6914023 Substrate for flat panel display and thin film electroluminecence element  
The object of the present invention is to provide a flat-panel-display substrate which is high in heat resistance, of which the coefficient of thermal expansion is approximated to that of a thick...
6878464 Glass-ceramic composite material and multilayered circuit substrate  
A glass-ceramic composite material for use in forming a multilayered circuit substrate is provided which has a low dielectric constant, but exhibits a relatively high thermal expansion coefficient....
6849334 Optical materials and optical devices  
Nanoscale particles, particle coatings/particle arrays and corresponding consolidated materials are described based on an ability to vary the composition involving a wide range of metal and/or...
6770111 Pollucite-based ceramic with low CTE  
A ceramic structure which is pollucite-based and has high refractoriness and high resistance to thermal shock. The inventive structure is suitable in high temperature applications such as a...
6699807 Glass ceramic material, method for producing the same and spark plug containing such a glass ceramic material  
A glass ceramic, for use as a resistor or a gas-tight glass ceramic solder for use in a spark plug, includes a fused seal of a starting glass fused from a starting mixture containing SiO 2 , Al 2 O...
6699605 Glass ceramic laminate becoming relatively high in bending strength after fired  
In a sintered glass ceramic product including at least three layers each of which is formed by a glass ceramic material, the layers are stacked to be substantially symmetrical in a stacking...
6693053 Glass and glass powder mixture and use thereof for the production of a glass ceramic  
A glass or glass powder is fused from a starting mixture containing approximately 38 wt % to 48 wt % SO 2 , 15 wt % to 19 wt % Al 2 O 3 , 4.5 wt % to 11 wt % TiO 2 , 0 wt % to 1.5 wt % Na 2 O, 0 wt...
6589893 Glass-ceramics having hexacelsian as a primary crystal phase, magnetic disk substrate and magnetic disk  
A glass-ceramic has a hexacelsian as a primary crystal phase and is characterized by satisfying a relation of 0≦I(101)/I(110)≦1.5 when a diffraction intensity of (101) face of hexacelsian in an...
6579818 Glass ceramic sintered product  
Disclosed is a glass ceramic sintered product which contains as crystal phases: (i) a gahnite crystal phase; (ii) a celsian crystal phase containing needle-like crystals having an aspect ratio of...
6569794 Composition for thermal insulating material  
Compositions for use as thermal insulation or barriers in articles that are required to function under transient elevated temperature conditions, such as are experienced during a fire. Articles in...
6569792 Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate  
Enclosed are crystallized glasses suitable for a substrate for an information recording medium such as a magnetic disc, optical disc, or optomagnetic disc, a substrate for information recording...
6485622 Lithium ion conductive glass-ceramics and electric cells and gas sensors using the same  
Lithium ion conductive glass-ceramics comprise in mol %: P 2 O 5 30-45% SiO 2 0-15% GeO 2 + TiO 2 25-50% in which GeO 2 0-50% TiO 2 0-50% ZrO 2 0-8% M 2 O 3 0<-10% where M is an element or...
6444598 Insulator composition, insulator paste and laminated electronic part  
An insulator composition which can be sintered at a relatively low temperature and which exhibits a low dielectric constant and a thermal expansion coefficient suitable for forming an insulator...
6352790 Substrate containing silicon and a barrier layer which functions as a protective/thermal barrier coating  
A barrier layer for a silicon containing substrate comprises an alkaline earth aluminosilcate and an additive component capable of forming a reaction product with silica.
6348424 Low-temperature calcined glass ceramic and a manufacturing process therefor  
A glass having an oxide-converted composition of 35 to 65 wt % of SiO 2 , 5 to 35 wt % of B 2 O 3 , 2 to 20 wt % of CaO, 5 to 25 wt % of Al 2 O 3 where the ratio of CaO to Al 2 O 3 is 1/1 to...
6294490 Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate  
Enclosed are crystallized glasses suitable for a substrate for an information recording medium such as a magnetic disc, optical disc, or optomagnetic disc, a substrate for information recording...
6265090 Electrically conductive paste ceramic multi-layered substrate  
Provided is an electrically conductive paste adapted to be sintered at the same time when a ceramic body is being sintered, wherein said paste has a contraction starting temperature that is higher...
6184164 Bimodal silicon nitride-bas ceramic composites  
A composition and method of fabricating pressureless sintered 70 volume % silicon nitride-30 volume % barium aluminum silicate ceramic composites. The composites are made from 70 volume % silicon...
6174829 Ceramic dielectric compositions  
A low-fire, low-dielectric ceramic composition is disclosed. The ceramic composition comprises a mixture of finely divided particles consisting of 30-90% by volume of Ca--Ba--Al--Zn--Si glass and...
6133175 Ceramic composition and method of making same  
Multiphase ceramic materials for use in multilayered device fabrication may be fabricated by providing novel glassy precursor materials of a preferred composition, with operable amounts of a...
6124223 β-quartz-based glass-ceramics  
Nanocrystalline glass-ceramic materials based on β-quartz solid solution Mg-rich phases formed in the system SiO 2 --Al 2 O 3 --MgO--Li 2 O--TiO 2 (ZnO, BaO, ZrO 2 , P 2 O 5 ). Articles made...
6121174 Dielectric material with low temperature coefficient and high quality  
A dielectric material is disclosed which has a small absolute value of the temperature coefficient of resonance frequency and a high coefficient of unloaded quality. Also disclosed are a process...
6080692 High-strength, translucent mica glass-ceramics  
The invention relates to a glass ceramic in which mica and ZrO 2 are present in crystallized form, containing: K 2 O: 0-9% by weight Na 2 O: 0-9% by weight with the condition that Na 2 O...
6034012 Composite material containing a fibre reinforced vitroceramic matrix and a method of making the same  
Composite material comprising a CAS+BAS vitroceramic matrix reinforced with SiC fibers and exhibiting a small difference between the thermal expansion coefficients of the matrix and the fibers is...
5994247 Saline soluble inorganic fibres  
Disclosed is use of a vitreous inorganic fiber in the knowledge that it has a composition meeting the criterion that the calculated sum of the free energies of hydration of the compounds that would...
5910459 Glass-ceramic containing a stabilized hexacelsian crystal structure  
The glass-ceramic material of the present invention has the hexagonal sheet structure of hexacelsian as its primary crystal phase and exhibits x-ray diffraction patterns indicative of hexacelsian,...
5821181 Ceramic composition  
Multiphase ceramic materials for use in multilayered device fabrication may be fabricated by providing novel glassy precursor materials of a preferred composition, with operable amounts of a...
5786286 Glass ceramic rear panel for emissive display  
An electronic display having a ceramic or glass-ceramic rear substrate panel therein. The use of ceramic or glass-ceramic materials for the rear panel substrate enables the use of thinner substrate...
5756408 Glass-ceramic sintered body  
A glass-ceramic sintered body containing Si, Al, Zn, element of Group 2a and Group 4a of the periodic table, and Boron and Oxygen, as constituent elements, and comprising a glass phase and...
5744208 Glass-ceramics containing lithium disilicate and tridymite  
This invention is directed at the makings of glass-ceramic which is uniquely suited for use as a disc substrate for utilization in a magnetic memory storage device. The glass ceramic material...
5695725 Method of preparing monoclinic BaO.A1.sub.2 O.sub.3.2SiO.sub.2  
Monoclinic celsian (BaO.Al 2 O 3 .2SiO 2 ) is produced by heating a stoichiometric, powder mixture of BaCO 3 (or BaC 2 O 4 ), Al 2 O 3 , and SiO 2 (preferably SiO 2 gel) with monoclinic...
5605868 Oxidative stable ceramic composites  
This invention is directed to the fabrication of SiC fiber reinforced, ceramic matrix composite articles exhibiting superior high temperature oxidative stability, those articles comprising: (a) a...
5578534 Method of producing Sl.sub.3 N.sub.4 reinforced monoclinic BaOAl.sub.2 O.sub.3 2SiO.sub.2 and SrOAl.sub. O.sub.3 2SiO.sub.2 ceramic composites  
A Si 3 N 4 reinforced aluminosilicate ceramic composite made of A. from about 5 to about 40 weight percent of Si 3 N 4 reinforcem material; B. from about 15 to about 35 weight percent of...
5571756 Composition and process for forming diesel engine elements  
A composition and process are disclosed for constructing a diesel engine element, such as for example, a valve guide which will withstand the friction of various tribological locations in a diesel...
5571755 Composition and process for forming diesel engine elements  
A composition and process are disclosed for constructing a diesel engine element, such as for example, a valve guide which will withstand the friction of various tribological locations in a diesel...
5538925 Si.sub.3 N.sub.4 reinforced monoclinic BaO.Al.sub.2 O.sub.3 .circle-solid.2S.sub.2 and SrO.Al.sub.2 O.sub.3.2SiO.sub.2 ceramic composites  
A Si 3 N 4 reinforced aluminosilicate ceramic composite made of A. from about 5 to about 40 weight percent of Si 3 N 4 reinforcem material; B. from about 15 to about 35 weight percent of...
5455210 Porcelain, porcelain batch composition and method for the manufacture of the porcelain  
The invention relates to a porcelain with a transparency and strength properties of a hard porcelain, characterized by a phosphate-containing glass phase as well as the predominance of unreacted...
5422319 Fiber reinforced ceramic matrix composites exhibiting improved high-temperature strength  
Novel oxide coatings which can be conveniently applied to reinforcing fibers such as silicon carbide fibers, and which when introduced as a fiber coating into fiber reinforced ceramic matrix...
5397750 Fabricating an aluminum article  
An aluminum article having a mirror-like surface and an improved working tool and method for fabricating the article from an aluminum blank, the tool comprising a mechanically strong,...
5389582 Cristobalite reinforcement of quartz glass  
Unique cristobalite-seeded quartz glass crucibles and cores admirably suited for Cz crystal growing and D.S. metal casting are formed by slip casting using a slurry containing a quartz refractory...
5389321 Method of producing a silicon carbide fiber reinforced strontium aluminosilicate glass-ceramic matrix composite  
A SrO-Al 2 O 3 -2SrO 2 (SAS) glass ceramic matrix is reinforced with CVD SiC continuous fibers. This material is prepared by casting a slurry of SAS glass powder into tapes. Mats of continuous...
5369067 Composite substrates and their production  
A composite substrate is provided, which comprises a cordierite-anorthite-boron base composite material and has a microstructure with anorthite included in the cordierite phase. This substrate can...
5338710 Ceramic substrate sintered at low temperatures  
A ceramic substrate sintered at low temperature comprising: 20 to 50% by volume of an anorthite (CaAl 2 Si 2 O 8 ) crystal phase, 1 to 20% by volume of a gahnite (ZnAl 2 O 4 ) crystal phase and...
Matches 1 - 50 out of 162 1 2 3 4 >