Saint-gobain Ceramics & Plastics, Inc.

Other

Ceramatec, Inc.

Saint-gobain/norton Industrial Ceramics Corporation

Saint-gobain Industrial Ceramics, Inc.

William T Collins

Vimal K Pujari

Jeffrey J Kutsch

Thomas M Clere

Eugene A Pruss

Charles Bateman

Lenny C Sales

Ara Vartabedian

David Woolley

Matteo Scalabrino

James T Hennessey

The present invention relates to a method for making a hexagonal boron nitride slurry and the resulting slurry. The method involves mixing from about 0.5 wt. % to about 5 wt. % surfactant with about 30 wt. % to about 50 wt. % hexagonal boron nitride powder in a medium under conditions effective to produce a hexagonal boron nitride slurry. The present invention also relates to a method for making a spherical boron nitride powder and a method for making a hexagonal boron nitride paste using a hexagonal boron nitride slurry. Another aspect of the present invention relates to a hexagonal boron nitride paste including from about 60 wt. % to about 80 wt. % solid hexagonal boron nitride. Yet another aspect of the present invention relates to a spherical boron nitride powder, a polymer blend including a polymer and the spherical hexagonal boron nitride powder, and a system including such a polymer blend.

High solids hBN slurry, hBN paste, spherical hBN powder, and methods of making and using them

High solids HBN slurry, HBN paste, spherical HBN powder, and methods of making and using them

The present invention relates generally to a multi-layered article suitable for service in severe environments. The article may be formed of a substrate, such as silicon carbide and/or silicon nitride. The substrate may have a first layer of a mixture of a rare earth silicate and Cordierite. The substrate may also have a second layer of a rare earth silicate or a mixture of a rare earth silicate and cordierite.

Environmental barrier coating

A densified silicon nitride body can be formed using a lanthana-based sintering aid. The composition may exhibit properties that provide a material useful in a variety of applications that can benefit from improved wear characteristics. The composition may be densified by sintering and hot isostatic pressing.

Silicon nitride body and method of manufacture

In a method of preparing a boron carbide material, boron carbide powder is washed with essentially pure water at an elevated temperature to generate washed boron carbide powder. The washed boron carbide powder is combined with a sintering aid. The mixture of the boron carbide powder and the sintering aid is pressed to form a shaped material, and the shaped material is sintered. A sintered boron carbide material comprises a boron carbide component that includes boron carbide, elemental carbon, and not more than about 0.6 wt % of oxygen on the basis of the total weight of the boron carbide component. The sintered boron carbide material has a density of at least about 99% of the theoretical density. Another sintered boron carbide material comprises a boron carbide component that includes boron carbide, silicon carbide, elemental carbon, and not more than about 0.3 wt % oxygen on the basis of the total weight of the boron carbide component, and has a density of at least about 97% of the theoretical density.

Method of preparing pressureless sintered, highly dense boron carbide materials

The present application is directed to ceramic compositions and, more specifically, to a silicon carbide composition and method of making it through liquid phase sintering. In one embodiment, the present invention is directed to an unsintered ceramic body including at least one liquid phase sintering aid. The unsintered ceramic body further includes a boron containing compound, a free carbon containing compound, and silicon carbide. In another embodiment, the present invention is directed to a method of making a sintered ceramic body. The method includes combining at least one liquid phase sintering aid, a boron containing compound, a free carbon containing compound, and silicon carbide to form a green ceramic, shaping the green ceramic into a ceramic body, and sintering the ceramic body.

Silicon carbide ceramic composition and method of making

The present application is directed to ceramic compositions and, more specifically, to a silicon carbide composition and method of making it through liquid phase sintering. In one embodiment, the present invention is directed to an unsintered ceramic body including a rare earth metal oxide, one of a glass phase metal oxide and a glass phase metal nitride, a boron containing compound, a free carbon containing compound and silicon carbide. In another embodiment, the present invention is directed to a method of making a sintered ceramic body. The method includes combining a rare earth metal oxide, one of a glass phase metal oxide and a glass phase metal nitride, a boron containing compound, a free carbon containing compound, and silicon carbide to form a green ceramic. The method further includes shaping the green ceramic into a ceramic body and sintering the ceramic body.

This invention relates to an all-ceramic bearing having wherein the fracture toughness and hardness values of the rings and roller elements are adjusted to produce pseudo-plastic contact, high resistance to roller contact fatigue and high resistance to wear.

All ceramic bearing

This invention relates to a sintered silicon nitride ceramic material comprising:

Dense silicon nitride ceramic having fine grained titanium carbide

This invention is related to a flowable slurry comprising between 79 and 86 w/o silicon nitride solids.

High solids silicon nitride aqueous slurries

A urinal for capturing and directing urine into a drain line. The inventive device includes an adjustable mounting structure securable to a wall surface within a bathroom. A urinal is supported by the adjustable mounting structure and can be positioned at a desired height. A water conduit communicates with a water supply line of a nearby sink or the like to permit selective flushing of the urinal, and a drain conduit communicates with a sink drain line to receive and dispose of the urine and flush water. The device can be readily installed into existing bathroom structures to provide an alternative to a conventional toilet, thereby reducing flushing of the toilet and saving water.

Urinal

A clamp apparatus for holding a door or the like in a generally vertical plane while a workman is preparing the door for hanging within a frame. The apparatus includes a base having a pair of clamping members slidably mounted thereon and such members are connected to a foot operated lever which is operated to move the clamping members apart and a spring or other resilient member urges the clamping members toward each other.

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Auburn, MA, United States of America

William T Collins