Corning Incorporated

John Harold Brennan

Ljerka Ukrainczyk

Kevin Lee Wasson

Liming Wang

Keith Raymond Gaylo

Michael William Price

Scott Winfield Deming

Tudor Constantin Gheorghiu

Karl David Ehemann

Brian Christopher Sheehan

Michael Joseph Dailey, Jr

David Joseph Kuhn

Yuriy Yurkovsky

Juergen Tinz

Darrel P Bailey

Elizabeth Marie Vileno

Kathleen Ann Wexell

Mark Allen Spetseris

Gary Graham Squier

Gregory Paul Dillon

Carlos R Araya

Michael James Vayansky

David J Kuhn

Darrel Bailey

Michael Dailey

David Kuhn

A glass molding system and a method of making glass articles using the glass molding system are disclosed. The glass molding system includes an indexing table, a plurality of enclosures arranged along the indexing table, and a plurality of stations defined on the indexing table such that each of the stations is selectively indexable with any one of the enclosures. At least one radiant heater is arranged in at least one of the enclosures. A radiation reflector surface and a radiation emitter body are arranged in the at least one of the enclosures. The radiation emitter body is between the at least one radiant heater and the radiation reflector surface and has a first surface in opposing relation to the at least one radiant heater and a second surface in opposing relation to the radiation reflector surface.

Glass molding system and related apparatus and method

A method for fabricating a green ceramic article containing organic compounds. The method involves first heating the green ceramic article to sequentially remove the organic compounds such that the organic compound with the lowest weight loss onset temperature is substantially removed prior to the next higher weight loss onset temperature organic compound. The organic compounds include but are not limited to at least an oil or oil-based compound having a flash point or an ignition temperature, higher than the weight loss onset temperature. For this system the temperature during heating is maintained below the flash point of the oil or oil-based compound until substantial removal thereof from the green ceramic structural body. After the organic compounds are substantially removed, the green ceramic article is further fired to a temperature and for a time to obtain a final fired body.

Method for fabricating ceramic articles containing organic compounds

A method of making below 250-nm UV light transmitting optical fluoride lithography crystals includes applying heat along a shortest path of conduction of a selected optical fluoride crystal, heating the optical fluoride crystal to an annealing temperature, holding the temperature of the optical fluoride crystal at the annealing temperature, and gradually cooling the optical fluoride crystal to provide a low-birefringence optical fluoride crystal for transmitting below 250-nm UV light.

Optical lithography fluoride crystal annealing furnace

Method for processing ceramics using electromagnetic energy

A process for automatically controlling combustible vapors during debinding and firing of ceramic products which includes establishing a maximum percentage of lower flammability limit (LFL) setpoint no greater than 50%; measuring continuously the percentage of LFL in the kiln atmosphere; and, maintaining the measured percentage of LFL to be less than or equal to the maximum percentage of LFL setpoint by an action selected from the group consisting of increasing gas volume delivered to the kiln, decreasing O concentration in the kiln, decreasing heating rate in the firing cycle, and combinations thereof.

Control of combustibles during firing

A ceramic article is fired using a combination of microwave energy and conventional heating energy according to a microwave power-time heating schedule comprising a series of separate firing segments at predetermined microwave power settings, the core and surface temperatures of the article being monitored during firing to determine the core-surface temperature differential, that differential being controlled and limited to prevent cracking of the ceramic article by adjusting the level of applied conventional heat energy during firing.

Hybrid method for firing of ceramics

A method of firing ceramic materials involving placing the ceramic material in a microwave heating apparatus having a microwave cavity and subjecting the ceramic material to combination of microwave radiation and conventional heat energy according to predetermined time-temperature profile. The time-temperature profile, ranging from room temperature the sintering soak temperature, comprises a series of target heating rate temperature setpoints and a series of corresponding core and surface temperature setpoints with each of the core and surface temperature setpoints being offset from the target heating rate setpoints a predetermined offset temperature. The method involves continuously measuring the ceramic body core temperature, T , and the surface temperature T . Controlling of the microwave power involves adjusting the microwave power in response to a difference between core temperature setpoint and a biased core measured temperature. Controlling of the conventional heat involves adjusting the conventional heat in response to the difference between the surface temperature setpoint and a biased surface temperature. The method involves continuing to deliver and control the microwave power and the conventional heat until the ceramic body has reached is sintering soak temperature.

A method of firing ceramic materials involving placing the ceramic material in a microwave heating apparatus having a microwave cavity and subjecting the ceramic material to combination of microwave radiation and conventional heat energy according to predetermined time-temperature profile. The time-temperature profile, ranging from room temperature the sintering soak temperature, comprises a series of target heating rate temperature setpoints and a series of corresponding core and surface temperature setpoints with each of the core and surface temperature setpoints being offset from the target heating rate setpoints a predetermined offset temperature. In a preferred embodiment, the method involves continuously measuring the ceramic body core temperature, T , and the surface temperature T and independently controlling the microwave power and the conventional heat in response to the core temperature value and the surface temperature value, respectively. Preferably, controlling of the microwave power involves adjusting the microwave power in response to a difference between core temperature setpoint and a biased core measured temperature, and controlling of the conventional heat involves adjusting the conventional heat in response to the difference between the surface temperature setpoint and a biased surface temperature.

Growing community of inventors

Horseheads, NY, United States of America

John Harold Brennan