Abstract: An example fuel cell stack component includes a metallic layer applied to the component and an oxide layer applied to the metallic layer. The oxide layer includes a chemical component that is not in the metallic layer.

Abstract: A component to generate a magnetic field and a method of designing windings, comprised of a plurality of strands, within each slot of the component, are described. The component includes a plurality of slots. The component also includes sets of a plurality of strands that form windings, each set of the plurality of strands being enclosed in a respective one of the plurality of slots, each set of the plurality of strands being divided into a plurality of a collection of strands configured to be twisted over a portion of a length of the respective one of the plurality of slots. Each of the collection of strands changes cross sectional shape over the portion.

Abstract: An electrochemical device includes a ceramic electrode, a metallic interconnect, and a ceramic bond material that bonds the ceramic electrode and the metallic interconnect together. The ceramic material includes manganese-cobalt-oxide that is electrically conductive such that electric current can flow between the ceramic electrode and the metallic interconnect.

Abstract: An example turbomachine shroud assembly includes an annular shroud configured to receive a rotating component. A radially outer surface of the annular shroud establishes positioning slots and relief slots. The positioning slots are configured to receive a support finger that limits radial movement of the annular shroud. The relief slots are different than the positioning slots.

Abstract: An example fuel cell stack component includes a metallic layer applied to the component and an oxide layer applied to the metallic layer. The oxide layer includes a chemical component that is not in the metallic layer.

Abstract: A variable vane control system for use with a gas turbine engine includes an actuator, a mechanical linkage assembly, and a vane position sensor. The gas turbine engine has a plurality of variable vanes each having an airfoil disposed in a gas flow path of the gas turbine engine. The plurality of variable vanes includes a first variable vane. The mechanical linkage assembly operably connects the actuator to at least the first variable vane. The vane position sensor is connected to one of the first variable vane or a portion of the mechanical linkage assembly proximate the first variable vane for sensing angular position of the first variable vane.

Abstract: An electrochemical device includes a ceramic electrode, a metallic interconnect, and a ceramic bond material that bonds the ceramic electrode and the metallic interconnect together. The ceramic material includes manganese-cobalt-oxide that is electrically conductive such that electric current can flow between the ceramic electrode and the metallic interconnect.

Abstract: An example turbomachine shroud assembly includes an annular shroud configured to receive a rotating component. A radially outer surface of the annular shroud establishes positioning slots and relief slots. The positioning slots are configured to receive a support finger that limits radial movement of the annular shroud. The relief slots are different than the positioning slots.