The Pennsylvania Research Corporation

Advanced Power Devices, Inc.

David L Shelleman

Richard E Tressler

James H Adair

John R Hellmann

Darryl P Butt

Julie M Anderson

John J Mecholsky, Jr

Solid, shaped and fired fibers of TiOand TiOare made by firing TiOfibers in a reducing atmosphere. In a first aspect, the TiOfibers are made by extruding into air a viscous TiOgel and heat treating the resulting green fibers to remove solvent, decompose and to volatilize undesired constituents to form electrically conductive, refractory fibers of TiOand TiO. In a second aspect, solid, shaped and fired fibers of TiOand TiOare made by firing extruded fibers from mixtures of TiO.

Electrically conductive fibers of Ti4O7 and Ti5O9

A testing apparatus is described that enables both single and double-ended tubular members to be tested under pressure and at elevated temperatures. For double-ended tubular members, the apparatus comprises first and second pressure seals at either end of the tubular member under test, both seals including annular compliant members that bear upon the internal surface of the tubular member. A heater is positioned within the tubular member and one of the pressure seals has an orifice through which the heater is connected to a power source. Pressurization occurs through an orifice in the other pressure seal and cooling apparatus surrounds the first and second ends of the tubular member to cool the pressure seals, thereby enabling the annular compliant members to retain their compliancy when the tubular member is heated to test temperature. For single-ended tubular members, a single pressure seal is used having pathways for both electrical and pressurization connections to the interior of the tubular member.

High temperature, tube burst test apparatus

Growing community of inventors

Philipsburg, PA, United States of America

David L Shelleman