Abstract:
PROBLEM TO BE SOLVED: To strengthen a welded and joined section of a weldment made by welding two pieces of oxide-dispersion-strengthened noble metal. SOLUTION: The structure for welding platinum includes: a first oxide-dispersion-strengthened platinum or platinum alloy section 101; a second oxide-dispersion-strengthened platinum or platinum alloy section 103; and a welding rod 201 which is a welding material containing platinum. The first oxide-dispersion-strengthened platinum or platinum alloy section 101 is welded to the second oxide-dispersion-strengthened platinum or platinum alloy section 103 using the welding material containing platinum. This welding step includes forming a platinum or platinum alloy weld bead 205 containing at lease one component selected from a group of zirconium, zirconium oxide, and rhodium at the higher level than those of the first oxide-dispersion-strengthened platinum or platinum alloy section 101 and the second oxide-dispersion-strengthened platinum or platinum alloy section 103. The weld bead 205 preferably contains zirconium oxide at the higher level than those of the first oxide-dispersion-strengthened platinum or platinum alloy section 101 and the second oxide-dispersion-strengthened platinum or platinum alloy section 103. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
Solid oxide fuel cell assemblies comprise packets of multi-cell-sheet device s based on compliant solid oxide electrolyte sheets that form a fuel chamber a nd support anodes interiorly and cathodes exteriorly of the chamber that can be electrically interconnected to provide a compact, high voltage power- generating unit; added frames can support the oxide sheets and incorporate fuel supply and air supply conduits or manifolds permitting stacking of the assemblies into fuel cell stacks of any required size and power-generating capacity.
Abstract:
Solid oxide fuel cell assemblies comprise packets of multi-cell-sheet devices based on compliant solid oxide electrolyte sheets that form a fuel chamber and support anodes interiorly and cathodes exteriorly of the chamber that can be electrically interconnected to provide a compact, high voltage power-generating unit; added frames can support the oxide sheets and incorporate fuel supply and air supply conduits or manifolds permitting stacking of the assemblies into fuel cell stacks of any required size and power-generating capacity.
Abstract:
A precious metal structure which has an internal gas permeable membrane is described herein for a glass manufacturing vessel configured to have molten glass flow therein. The internal gas permeable membrane can be supplied with an atmosphere of gas (or gases) to control the flux of hydrogen into our out of the molten glass or otherwise improve the production of the molten glass. In this manner, the undesirable detrimental reactions that can occur at the interface of the molten glass and precious metal interface which can cause defects in the molten glass such as bubbles or solid inclusions can be stopped or at least substantially reduced.
Abstract:
A mold for shaping glass can be made by a method that includes providing a mold body having a shaping surface comprising at least about 90% nickel and modifying the composition of the shaping surface of the mold body by exposing the shaping surface to an oxidizing heat treatment. The oxidizing heat treatment may include a ramping heat treatment, a fixed heat treatment, or both the ramping heat treatment and the fixed heat treatment. The ramping heat treatment may include increasing a heating temperature at a rate from about 20°C/hour to about 500°C/hour to a temperature from about 700°C to about 1000°C. The fixed heat treatment may include holding the heating temperature from about 700C to about 1000°C for a holding time of at least about 5 minutes.
Abstract:
A glass sampling apparatus and a method for using the glass sampling apparatus to obtain a glass sample from molten glass within a glass melting vessel are described herein. In one embodiment, the glass sampling apparatus includes: (a) a sampling tube having a first end and a second end, where the second end is used to obtain the glass sample from the molten glass in the glass melting vessel; (b) a first valve; (c) a vacuum device; and (d) a tube network that couples the first end of the sampling tube to both the first valve and the vacuum device.
Abstract:
Methods and apparatus for producing display quality glass sheets are provided in which the batch materials for making the sheets are melted in a furnace whose glass-engaging surfaces comprise zirconia (ZrO2). By using molybdenum electrodes, instead of the conventional tin electrodes, to electrically heat the molten glass, the wear rate per unit area of the furnace's glass-engaging, zirconia-containing surfaces are reduced by more than 50%, thus reducing zirconia levels (solid+dissolved) in the finished glass by at least a similar amount. As a consequence of this reduction, rejection rates of finished glass sheets are lowered, which is of particular value in the production of glass sheets of large dimensions, as desired by display manufacturers and other users of such sheets.