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6797243 |
Structured Fischer-Tropsch catalyst system and method
A Fischer-Tropsch catalyst for the conversion of synthesis gas into Fischer-Tropsch products includes a stationary Fischer-Tropsch catalyst having a voidage ratio greater than approximately 0.45 or...
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6262131 |
Structured fischer-tropsch catalyst system and method
A Fischer-Tropsch catalyst for the conversion of synthesis gas into Fischer-Tropsch products includes a stationary Fischer-Tropsch catalyst having a voidage ratio greater than approximately 0.45 or...
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6130178 |
Strong miserite glass-ceramics
The present invention is directed at a glass-ceramic having high strength and toughness and containing miserite as a predominant crystal phase. The glass-ceramic has a composition calculated in...
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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...
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5427986 |
B-N-C.sub.x hydrid coatings for inorganic fiber reinforcement materials
Inorganic reinforcing fibers comprising hybrid BN--C protective coatings containing up to 12% by weight of hexagonal (graphitic) carbon dissolved in the BN matrix but being essentially free of...
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5273833 |
Coated reinforcements for high temperature composites and composites made therefrom
The subject invention relates to a coated reinforcement material comprising a Si-containing reinforcement having a coating of the general formula: Al x O y N z wherein x is up to about 60...
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5214004 |
Ceramic fiber reinforced glass-ceramic matrix composite
A slurry of BSAS glass powders is cast into tapes which are cut to predetermined sizes. Mats of continuous CVD-SiC fibers are alternately stacked with these matrix tapes. This tape-mat stack is...
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5110652 |
Shaped fiber-reinforced ceramic composite article
A ceramic matrix composite article having a varying thickness is fabricated by a process wherein multiple prepreg sheets comprising reinforcing fibers and powdered matrix material are stacked to...
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5089345 |
Crystallized glass article having an irregular rough surface pattern and a method for producing the same
In a crystallized glass article consisting of crystallized glass masses fusion bonded together and having a principal surface, said principal surface having a surface pattern determined by said...
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5049329 |
Process for forming ceramic matrix composites
In the method for making a ceramic matrix composite article comprising the steps of providing a porous preform for the article formed of a combination of a fibrous reinforcing material and a...
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5039635 |
Carbon-coated reinforcing fibers and composite ceramics made therefrom
Fiber-reinforced ceramic matrix composite products are made by providing inorganic fiber reinforcement materials with pyrolytic carbon coatings, combining the carbon-coated fibers with a selected...
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5013605 |
Cordierite-type glass-ceramic with controlled coloration
There is disclosed a cordierite-type glass-ceramic article having a controlled gray coloration, and a method of producing such article by employing titania as the nucleating agent and firing in a...
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4992318 |
Laminated hybrid ceramic matrix composites
Novel ceramic matrix composition comprising toughened ceramic layers interlaminated with fiber-reinforced ceramic layers and offering improved off-axis and axial properties, are described. The...
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4976761 |
Method for making ceramic matrix composite article
A method for making a fiber-reinforced ceramic matrix composite article is disclosed wherein a ceramic matrix material in the form of a glass powder is combined with a fibrous reinforcing material...
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4971932 |
Magnetic memory storage devices
The present invention is related to the fabrication of a magnetic memory storage device consisting essentially of a head pad and a rigid information disk, which disk consists essentially of a rigid...
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4948758 |
Fiber-reinforced composite comprising mica matrix or interlayer
Ceramic matrix composite articles comprising a ceramic, glass-ceramic or glass matrix and a fiber reinforcement phase disposed within the matrix consisting of amorphous or crystalline inorganic...
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4935387 |
Fiber-reinforced composite comprising mica matrix or interlayer
Ceramic matrix composite articles comprising a ceramic, glass-ceramic or glass matrix and a fiber reinforcement phase disposed within the matrix consisting of amorphous or cyrstalline inorganic...
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4919991 |
Hybrid ceramic matrix composite articles comprising particulate additives and method
Ceramic matrix composites and a method for making them are provided, the composites comprising a matrix of an alkaline earth aluminosilicate glass or an alkaline earth aluminosilicate glass-ceramic...
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4855259 |
Process of making ceramic moldings containing cordierite
Ceramic moldings containing finely crystalline cordierite are described, which are obtainable by the intensive grinding of precrystallized cordierite powder, mixing the powder with second additive...
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4808460 |
Laminated structures containing an inorganic corrugated or honeycomb member
This invention relates to the production of laminated structures consisting essentially of a light weight interior member prepared from a glass, glass-ceramic, or ceramic, an exterior member...
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4806428 |
Composite ceramic article and method for making it
Oxide-coated whiskers suitable for consolidation into or incorporation within a whisker-reinforced composite ceramic article are provided by dispersing inorganic whiskers in a colloidal oxide sol,...
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4788162 |
Composite by compression
A mixture of ceramic filler and a matrix forming silicate and/or aluminosilicate material is compressed at a temperature at which the matrix forming material is molten to produce a composite.
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4725567 |
Composite by infiltration
A composite is produced by shaping a ceramic filler into a porous compact and infiltrating the compact with liquid alkaline earth silicate or alkaline earth aluminosilicate.
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EP0198977A1 |
Reinforcement of alkaline earth aluminosilicate glass-ceramics.
Abstract not available for EP0198977 Abstract of corresponding document: US4615987 The present invention is directed to SiC whisker and/or fiber reinforced glass-ceramic matrix composite articles...
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4615987 |
Reinforcement of alkaline earth aluminosilicate glass-ceramics
The present invention is directed to SiC whisker and/or fiber reinforced glass-ceramic matrix composite articles wherein an alkaline earth aluminosilicate constitutes the predominant crystal phase....
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