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7598188 |
Ceramic materials and methods of making and using the same
Ceramic materials and articles comprising at least 35 percent by weight Al 2 O 3 , and a plurality of cells having an average cell size of less than 3 micrometers.
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7592278 |
Glass ceramic
A glass ceramic is specified, with a crystalline phase consisting predominantly of BPO 4 , and preferably exclusively of BPO 4 . The glass ceramic contains 10 to 50 wt.-% SiO 2 , 5 to 40 B 2 O 3 ,...
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7591961 |
Translucent piezoelectric glass ceramic
A translucent piezoelectric glass ceramic is disclosed. The glass ceramic is prepared from a precursor glass by a ceraming process, using a temperature gradient to effect the precipitation of...
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7585799 |
Microspheres having a high index of refraction
The present disclosure relates to microspheres (i.e., beads) having a high index of refraction. The disclosure also relates to retroreflective articles, and in particular pavement markings,...
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7579293 |
Pavement marking, reflective elements, and methods of making microspheres
Presently described are retroreflective articles, such as pavement markings, that comprise transparent microspheres partially embedded in a (e.g., polymeric) binder. Also described are (e.g.,...
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7547652 |
Vitreous compositions of the vitroceramic type, transparent to infrared
The invention relates to vitreous compositions, in particular of the vitroceramic type, transparent to infrared, production and uses thereof. Said compositions comprise in mol. %: Ge 5-40, Ga<1,...
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7544629 |
Non-lead glass for forming dielectric, glass ceramic composition for forming dielectric, dielectric, and process for producing laminated dielectric
A non-lead glass for forming a dielectric, which consists essentially of, as represented by mol %, from 20 to 39% of SiO 2 , from 5 to 35% of B 2 O 3 , from 2 to 15% of Al 2 O 3 , from 1 to 25% of...
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7524779 |
Microspheres having a high index of refraction
The present invention relates to microspheres (i.e., beads) having a high index of refraction. The invention also relates to retroreflective articles, and in particular pavement markings,...
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7507683 |
Glass ceramics for laser systems
A glass-ceramic material, particularly for elements in laser systems, and a method for preparing same. The glass-ceramic material may be used for an optical fiber for communication systems and...
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7482292 |
Composition for ceramic substrate, ceramic substrate, method for producing ceramic substrate
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...
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7465687 |
Tough cordierite glass-ceramics
An internally nucleated, toughened cordierite glass-ceramic is disclosed. The cordierite glass-ceramic has good oxidation resistance and fracture toughness and coefficient of thermal expansion...
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7381258 |
Opaque dental ceramic—method of production and use therof
The invention relates to an opaque dental ceramic for burning on a rack or implant of dental restoration at least comprising SiO 2 , Al 2 O 3 , B 2 O 3 , Na 2 O, K 2 O as well as TiO 2 . To cover...
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7381232 |
Process for producing CeO2 fine particles and polishing slurry containing such fine particles
To provide a process for producing CeO 2 fine particles having high crystallinity, being excellent in uniformity of composition and particle size and having a small particle size, and a polishing...
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7371702 |
Translucent and radio-opaque glass ceramics
Radio-opaque glass ceramics are described which have high chemical durability and adjustable translucency, brightness and coefficient of thermal expansion.
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7368097 |
Preparation of nanocrystalline lithium titanate spinels
Process for preparing nanocrystalline lithium titanate spinels by reacting lithium hydroxide and a titanium alkoxide at elevated temperature in a reaction mixture which forms water of reaction.
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7365036 |
Crystallized glass spacer for field emission display and method its production
Provided is a crystallized glass spacer for a field emission display resistant to charging with application of an electric field and resistant to chipping or cracking thanks to high fracture...
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7332453 |
Ceramics, and methods of making and using the same
Ceramics (including glasses and glass-ceramics) comprising nitrogen, and methods of making the same.
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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...
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7300896 |
Glass ceramic and method of producing the same
A glass ceramic comprises (in wt.-% on oxide basis): SiO 2 35 to 60, B 2 O 3 >4 to 10, P 2 O 5 0 to 10, Al 2 O 3 16.5 to 40, TiO 2 1 to 10, Ta 2 O 5 0 to 8, Y 2 O 3 0 to 6, ZrO 2 1 to 10,...
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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...
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7297171 |
Methods of making ceramics comprising Al2O3, REO, ZrO2 and/or HfO2 and Nb205 and/or Ta2O5
Methods for making glass-ceramics comprising Al 2 O 3 , REO, at least one of ZrO 2 or HfO 2 and at least one of Nb 2 O 5 or Ta 2 O 5 . Glass-ceramics according to the present invention can be...
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7291571 |
Crystallizable glass and the use thereof for producing extremely solid and break resistant glass-ceramics having an easily polished surface
The invention relates to crystallizable aluminosilicate magnesium-containing glass which is used for producing extremely solid and break-resistant glass-ceramics having an easily polished surface....
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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...
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7253128 |
Ceramics comprising AI2O3, Y2O3, ZrO2 and/or HfO2, and Nb2O5 and/or Ta2O5 and methods of making the same
Ceramics comprising (i) at least one of Nb 2 O 5 or Ta 2 O 5 and (ii) at least two of (a) Al 2 O 3 , (b) Y 2 O 3 , or (c) at least one of ZrO 2 or HfO 2 . Embodiments of ceramics according to...
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7211532 |
Alkali ion conductive glass-ceramics and electric cells and gas sensors using the same
There are provided glass-ceramics having a high lithium ion conductivity which include in mol %:
P 2 O 5 38–40% TiO 2 25–45% M 2 O 3 (where M is Al or Ga) 5–15% Li 2 O 10–20%
and...
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7189670 |
Dielectric ceramic and multilayer ceramic substrate
A dielectric ceramic obtained by firing a raw material comprising an alumina powder, a crystallizable glass powder mainly containing SiO 2 , CaO and MgO, and a noncrystallizable glass powder mainly...
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7189669 |
Dielectric ceramic material and multilayer ceramic substrate
A dielectric ceramic material which is obtained by firing a raw material comprising an alumina powder and a glass powder containing at least SiO 2 and MgO, the dielectric ceramic material being...
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7183232 |
Translucent and radio-opaque ceramics
Radio-opaque glass ceramics are described which have high chemical durability and adjustable translucency, brightness and coefficient of thermal expansion.
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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...
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7147544 |
Glass-ceramics
Glass-ceramics and methods of making the same. Embodiments of the invention include abrasive particles. The abrasive particles can be incorporated into a variety of abrasive articles, including...
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7144832 |
Use of a magnesia zirconia brick
The present invention relates to the use of a magnesia-zirconia brick in regenerator chambers of glass troughs, which are at least partially operated using a reducing atmosphere.
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7144618 |
Multilayer composite and method for preparing the same
A multilayer composite includes an insulating substrate and patterned conductive layers and insulating layers alternately laminated on the insulating substrate. In a laminating process, a...
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7101819 |
Alumina-zirconia, and methods of making and using the same
Alumina-zirconia materials and methods of making the same. Embodiments of the invention include abrasive particles. The abrasive particles can be incorporated into a variety of abrasive articles,...
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7074730 |
Bioactive rhenanite glass ceramic
The invention relates to a bioactive rhenanite glass ceramic which is characterized by a high content of P 2 O 5 , CaO and Na 2 O and is particularly suitable as bone replacement material in...
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7053015 |
SBN glass ceramics system
A glass ceramics having a chemical composition of aRO.bNb 2 .O 5 .cSiO 2 .dB 2 O 3 .eTeO 2 .fX (where R represents Ba and/or Sr, X represents one or more oxide selected from the group consisting of...
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7015161 |
Substrate for information recording medium and magnetic recording medium composed of crystallized glass
Provided is a substrate for information recording medium composed of such a crystallized glass as having high Young's modulus, strength and heat resistance, being excellent in surface smoothness,...
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7015160 |
Glass ceramic dielectric material suitable for production of a microwave circuit component
Glass powder for a dielectric material has a nature that, when fired, diopside (CaMgSi 2 O 6 ) and at least one of titanite (CaTi(SiO 4 )O) and titania (TiO 2 ) are precipitated. Preferably, the...
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7008892 |
Raman-active optical fiber
An optical fiber has a fiber core with a higher refractive index and a cladding surrounding the core with a lower refractive index. The fiber core is made of a multi-component oxide glass...
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6979661 |
Highly birefringent glass
A birefringent glass composed of a phase-separated glass is provided. The phase-separated glass includes a borosilicate glass in which fluorine and a constituent that tends to crystallize into a...
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6960399 |
Crystalized 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...
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6953756 |
Glass ceramic sintered body and wiring board using the sintered body
A glass ceramic sintered body containing gahnite and cordierite as crystal phases, having a thermal expansion coefficient at 40 to 400° C. of not larger than 5×10 −6 /° C., a dielectric...
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6936555 |
Glass ceramics based on ZnO
Disclosed is a substantially transparent glass-ceramic ceramic, and a method for making a glass-ceramic, exhibiting an aluminogallate spinel crystal phase and having a glass-ceramic composition...
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6924245 |
Glass ceramic composition, glass ceramic sintered material and ceramic multilayer substrate
A glass ceramic composition which can be fired at a low temperature and which has a high dielectric constant, a relatively small thermal expansion coefficient and a small temperature coefficient of...
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6872331 |
Oxide ion conductor, manufacturing method therefor, and fuel cell using the same
An oxide ion conductor is manufactured having a relatively high mechanical strength while the ionic conduction thereof is maintained at a satisfactory level. The oxide ion conductor is represented...
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6818574 |
Jointed body of glass-ceramic and aluminum nitride sintered compact and method for producing the same
A compact, low electric resistance and high heat-spreading electric circuit substrate, which is suitable for an electric circuit used at microwave of 1 GHz or more as used in the field of wireless...
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6767854 |
Glassy-crystalline material with low solubility and process of preparing the same
The invention refers to a material which is chemically long-term stable in a neutral or slightly acid environment and which can be used both as bioactive bone replacement material, e.g. in the form...
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6753070 |
Insulating ceramic compact, ceramic multilayer substrate, and ceramic electronic device
An insulating ceramic compact is provided which can be obtained by low-temperature firing, has a low relative dielectric constant and superior high frequency characteristics, and can be co-sintered...
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6740259 |
Method of manufacture of ceramic materials
A method of manufacture of a ceramic material comprises the steps of preparing a melt of the ceramic materials, cooling the melt slowly through the freezing point of the material to initiate...
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6649549 |
Glass composition for crystallized glass
A polished glass disk medium substrate suitable for use as a substrate for a hard disk, a hard disk containing the substrate and methods for making the substrate. The substrate containing glass...
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6641941 |
Film of yttria-alumina complex oxide, a method of producing the same, a sprayed film, a corrosion resistant member, and a member effective for reducing particle generation
The invention provides a film of an yttria-alumina complex oxide having a high peel strength with respect to a substrate. A mixture of powdery yttria and alumina materials is sprayed on a substrate...
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