Corning Incorporated

John David Helfinstine

Dean Veral Neubauer

William Robert Powell

Daniel J Liebner

John L Martin

Thomas Dale Ketcham

Dell Joseph St Julien

Sujanto Widjaja

Michael Edward Badding

Scott Christopher Pollard

Glen Bennett Cook

Randy Lee Rhoads

Zhiqiang Shi

John Joseph Costello, Iii

Jeffrey Earl Cortright

David John Worthey

Hilary Tony Godard

Robert Arthur McIntosh

Irene Marjorie Slater

William P Vann

Lisa Marie Noni

G Clinton Shay

David V Hayes

Timothy A Roe

Robert J Dill

David C Ward

Dennis I Butts

Eric J Maher

Daniel Jay Liebner

Systems () and methods for measuring and displaying a visual and/or graphical representation of the specific modulus (E/&#x3c1;) of a cellular ceramic body (), such as those used to form particulate filters, are disclosed. The ultrasonic measurement system employs an ultrasonic transmitter (T) and an ultrasonic receiver (R) adjacent to, but spaced apart from respective ends () of the ceramic body. Multiple ultrasonic waves () are sent through corresponding multiple longitudinal portions (P) of the honeycomb structure (), where adjacent longitudinal portions overlap. Time of flight (TOF) measurements (TOF, TOF), along with other parameters describing the ceramic body, allow for the measurement of the sonic speed (c) of the ultrasonic waves that pass through the ceramic body as well as the attenuation (IR). The specific modulus is then calculated from the square of the sonic speed (C). The high resolution of the ultrasonic measurements allows for improved evaluation of the manufacturing process.

Systems and methods for measuring the specific modulus of cellular ceramic bodies

The present invention pertains to apparatus and methods for measuring elastic modulus (Young's modulus) of non-solid materials, including honeycomb ceramic materials used in the filtration and/or treatment of exhaust gasses, through a range of temperatures.

Methods and apparatus for measuring elastic modulus of non-solid ceramic materials by resonance

A stress reducing mounting for an electrolyte sheet assembly in a solid electrolyte fuel cell is provided that includes a support frame or manifold having an inner edge portion that supports a peripheral portion of the sheet assembly, a seal that affixes an edge of the peripheral portion to the frame or manifold, and a stress reducer disposed around the peripheral portion of the electrolyte sheet and the frame or manifold that reduces tensile stress in the peripheral portion of the electrolyte sheet when the peripheral portion is bent by pressure differentials or thermal differential expansion. The stress reducer is at least one of a convex curved surface on the inner edge portion of the frame or manifold that makes area contact with the peripheral portion when it bends in response to a pressure differential or thermal differential expansion, and a stiffening structure on the sheet peripheral portion that renders the ceramic sheet material forming the peripheral portion more resistant to bending. The stress reducing mounting reduces cracking in the electrolyte sheet at the peripheral portions due to tensile forces.

Stress reducing mounting for electrolyte sheet assembly in a solid oxide fuel cell

Isopipes for use in making sheet glass by a fusion process are provided which exhibit reduced sag. The isopipes are composed of a zircon refractory which has a mean creep rate (MCR) at 1180&#xb0; C. and 250 psi and a 95 percent confidence band (CB) for said mean creep rate such that the CB to MCR ratio is less than 0.5, the MCR and the CB both being determined using a power law model. The zircon refractory can contain titania (TiO) at a concentration greater than 0.2 wt % and less than 0.4 wt %. A concentration of titania in this range causes the zircon refractory to exhibit a lower mean creep rate than zircon refractories previously used to make isopipes. In addition, the variation in mean creep rate is also reduced which reduces the chances that the zircon refractory of a particular isopipe will have an abnormally high creep rate and thus exhibit unacceptable sag prematurely.

Sag control of isopipes used in making sheet glass by the fusion process

Isopipes for use in making sheet glass by a fusion process are provided which exhibit reduced sag. The isopipes are composed of a zircon refractory which has a mean creep rate (MCR) at 1180&#xb0; C. and 250 psi and a 95 percent confidence band (CB) for said mean creep rate such that the CB to MCR ratio is less than 0.5, the MCR and the CB both being determined using a power law model. The zircon refractory can contain titania (TiO) at a concentration greater than 0.2 wt. % and less than 0.4 wt. %. A concentration of titania in this range causes the zircon refractory to exhibit a lower mean creep rate than zircon refractories previously used to make isopipes. In addition, the variation in mean creep rate is also reduced which reduces the chances that the zircon refractory of a particular isopipe will have an abnormally high creep rate and thus exhibit unacceptable sag prematurely.

A pull roll assembly is described herein that is used to draw a glass sheet. The pull roll assembly includes a first roll assembly, a second roll assembly and a device (e.g., differential drive, sensor(s)). The device enables one to control the first and/or second roll assemblies based in part on pulling forces (e.g., glass contact normal force and/or required sheet pulling force) associated with a glass sheet while the glass sheet is being drawn between the first and second roll assemblies. A glass manufacturing system and method for using the pull roll assembly are also described herein.

Pull roll assembly for drawing a glass sheet

Flexible ceramic sheets with enhanced strain tolerance for electrochemical applications such as solid oxide fuel cell electrolytes incorporate a surface indentation pattern providing a strain tolerance of not less than 0.5% in any direction in the sheet plane, being made from flexible green ceramic sheet comprising a ceramic powder and a thermoplastic organic binder by heating and reshaping the green sheet to form a multi-directional surface corrugation pattern therein, followed by firing to sinter the ceramic powder to a flexible ceramic sheet having a multi-directional surface corrugation pattern.

Solid oxide electrolyte, fuel cell module, and method

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Big Flats, NY, United States of America

John David Helfinstine