Corning Incorporated

Other

Timothy Joseph Curry

John Albert Olenick

Thomas Dale Ketcham

Michael Edward Badding

Dell Joseph St Julien

Jacqueline Leslie Brown

Lanrik Wayne Kester

William Joseph Bouton

Nathan Michael Zink

Kathleen Ritter Olenick

Jeremy Paananen

Thomas Silverblatt

Viswanathan Venkateswaran

Roman E Hurny

Robert A Bourdelaise

Paul A Vichot

Eli A Richards

Barry E Grabow

Samuel F Wilderson

A method of manufacturing ceramic tape includes a step of directing a tape of partially-sintered ceramic into a furnace. The tape is partially-sintered such that grains of the ceramic are fused to one another yet the tape still includes at least 10% porosity by volume, where the porosity refers to volume of the tape unoccupied by the ceramic. The method further includes steps of conveying the tape through the furnace and further sintering the tape as the tape is conveyed through the furnace. The porosity of the tape decreases during the further sintering step.

Manufacturing line, process, and sintered article

Method of manufacturing ceramic tape

A waveguide includes a body of material having a width, a thickness, and a length, where the width is orthogonal to the thickness, and the length is orthogonal to the thickness and the width. The material includes polycrystalline ceramic that is transmissive such that the body is configured as a waveguide. The thickness is no more than 5 millimeters and at least 20 nanometers, the width is greater than or equal to the thickness, and the length is at least 100 times greater than the width. The body of material has a granular profile such that grains of the material protrude generally outward from a surface of the body with a height of at least 25 nanometers and no more than 100 micrometers relative to recessed portions of the surface of the body at boundaries between the grains.

Polycrystalline waveguide

A manufacturing line includes a tape of green material that is directed through a furnace so that the furnace burns off organic binder material and then partially sinters the tape without the use of a setter board. Sintered articles resulting from the manufacturing line may be thin with relatively large surface areas; and, while substantially unpolished, have few sintering-induced surface defects. Tension may be applied to the partially sintered tape as it passes through a second furnace on the manufacturing line to shape resulting sintered articles.

A high-temperature seal having in-situ integrity monitoring capability includes a quantity of dielectric material sealing an interface between adjacent structures and an electrical transmission line embedded within the dielectric material. A signal injection port is provided for exciting the transmission line with an excitation signal. One or more sample ports are provided for sampling the transmission line to obtain signal samples resulting from the excitation signal. The sample port(s) are adapted for connection to a signal analyzer adapted to analyze the signal samples for indications of seal integrity problems. Using a technique such as time domain reflectometry or frequency response analysis, the transmission line can be monitored for changes in characteristic impedance due to changes in seal dielectric constant and/or disruption of the transmission line. Such evaluation provides useful information for making determinations about seal integrity in a manner that permits safe seal operation and minimization of resultant stress modes.

In-situ seal integrity monitoring

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Orchard Park, NY, United States of America

Timothy Joseph Curry