Abstract: A ceramic coating process comprises introducing a suspension including a fine ceramic particulate suspended in a liquid carrier into a plasma torch. The method includes melting the fine ceramic particulate in the plasma torch; propelling the fine ceramic particulate toward a substrate; and forming a coating on the substrate, the coating comprises splats of the fine ceramic particulate.

Abstract: A high-temperature die casting die includes a first die plate with a first recess and a second die plate with a second recess, the first and second recesses defining a main part cavity and gating. A grain selector is in fluid communication with the main cavity, and an in situ zone refining apparatus is adapted to apply a localized thermal gradient to at least one of the first and second die plates. The localized thermal gradient and the at least one die plate are movable relative to each other so as to apply the localized thermal gradient along a first direction extending from the grain selector longitudinally across the main part cavity.

Abstract: A process for coating a component including applying a thermal barrier coating material to a bond coat and selectively infiltrating a blocking material into the thermal barrier coating material.

Abstract: A directional solidification apparatus includes a mold heating chamber, a solidification chamber, and a gas source. The solidification chamber is adjacent the mold heating chamber for solidifying molten metal formed from an air melt allow system as a cast body as the metal is withdrawn from the mold heating chamber. The gas source is in fluid communication with the mold heating chamber for providing a pressurized atmosphere for directionally solidifying metal as a cast body having single crystal or multi-crystal columnar micro structure.

Abstract: A method for desulfurizing a metal alloy comprises heating the metal alloy to a molten state. A gaseous desulfurizing compound is bubbled through the molten alloy to form a solid sulfur-containing waste phase and a molten reduced-sulfur alloy phase. The solid waste phase and the molten reduced-sulfur alloy phase are separated. The gaseous desulfurizing compound includes a constituent element selected from the group: alkali metals, alkaline earth metals, and rare earth metals.

Abstract: A pour liner for a shot sleeve of a die-casting system including a bonding layer within a slot in a shot sleeve substrate and a refractory metal layer adjacent to the bonding layer. A method of manufacturing a shot sleeve including forming a slot in the slot sleeve, laser cladding a bonding layer within the slot, and laser cladding a refractory metal layer onto the bonding layer.

Abstract: A method of manufacturing a multi-material tubular structure includes spinning a can, depositing a powdered material into the can and compacting the powdered material within the can to provide a tubular structure.

Abstract: A method casts a plurality of alloy parts in a mold (600; 700) having a plurality of part-forming cavities (601). The method comprises pouring a first alloy into the mold causing: the first alloy to branch into respective flows along respective first flowpaths (676, 684; 708) to the respective cavities; and a surface of the first alloy in the part-forming cavities to equilibrate. The method further comprises pouring a second alloy into the mold causing: the second alloy to branch into respective flows along respective second flowpaths (676, 680; 712) to the respective cavities.

Abstract: A die casting and a method for die casting a metal having a melting temperature of at least 1500° F. (815° C.) are disclosed. A molten volume of metal is injected to a casting die which includes a main cavity corresponding to an as-cast structure, a first reservoir, and a first runner arrangement. The first runner arrangement is configured to fluidly communicate molten metal between the first reservoir and the main cavity. After the injecting step, the casting die is sealed. The injected molten volume of metal is equiaxially solidified generally from a first portion of the main cavity distal to the first reservoir toward a second portion of the main cavity proximal to the first reservoir. During the equiaxial solidifying step, the main cavity is backfilled with at least a portion of the injected molten volume via the first runner arrangement.

Abstract: A process for coating a component and a coating system including a bond coat on a superalloy substrate. A thermal barrier material may be applied to the bond coat and a rare earth apatite may be applied to the thermal barrier material via one of Suspension Plasma Spray (SPS) and Solution Precursor Plasma Spray (SPPS) to form an exposed surface. The rare earth apatite may be formed as Ca2+yRE8+x(SiO4)6O2+3x/2+y in which ?2<y<2 and ?2<x<2.

Abstract: A die casting system includes a die having a plurality of die elements that define a die cavity. A charge of material is received in the die cavity. The charge of material comprises a refractory metal intermetallic composite based material system. A die casting method includes casting a component from the refractory metal intermetallic composite based material system.

Abstract: A method of manufacturing a component in a die casting cell that includes a die casting system according to an exemplary aspect of the present disclosure includes, among other things, isolating a first chamber from a second chamber of the die casting system, melting a charge of material in the first chamber, sealing the second chamber relative to the first chamber, and simultaneously injecting the charge of material within the second chamber to cast the component and melting a second charge of material within the first chamber.

Abstract: A method of manufacturing a component in a die casting cell that includes a die casting system according to an exemplary aspect of the present disclosure includes, among other things, isolating a first chamber from a second chamber of the die casting system, melting a charge of material in the first chamber, sealing the second chamber relative to the first chamber, and simultaneously injecting the charge of material within the second chamber to cast the component and melting a second charge of material within the first chamber.

Abstract: An article (50; 100) has a metallic substrate (22), a bondcoat (30) atop the substrate, and a thermal barrier coating (28; 27, 28) atop the bondcoat. The thermal barrier coating or a layer thereof comprises didymium oxide and zirconia.

Abstract: A shot tube assembly for a die casting process includes a spiral passage for circulating a coolant about a cavity containing the molten metal material. The circulating coolant provides temperature control of the shot tube that improves the casting process and increases shot tube life.

Abstract: A method for casting comprising: providing a seed, the seed characterized by: an arcuate form and a crystalline orientation progressively varying along an arc of the form; providing molten material; and cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material.

Abstract: A shot tube includes an inner bore for delivering molten material into a die-cast mold. The shot tube has an outer peripheral surface with at least one surface for receiving a locking member to lock the shot tube into an aperture in a fixed mold portion and an alignment structure for properly aligning the shot tube in the fixed mold portion. An opening receives molten material into the inner bore. A die-cast machine is also disclosed.

Abstract: An article (50; 100) has a metallic substrate (22), a bondcoat (30) atop the substrate, and a thermal barrier coating (28; 27, 28) atop the bondcoat. The thermal barrier coating or a layer thereof comprises didymium oxide ore and zirconia.

Abstract: A thermal barrier coating for a turbine engine component contains neodymia, optionally alumina, and zirconia. The thermal barrier coating has resistance to CMAS attack and a low thermal conductivity.

Abstract: A casting system includes a core and a shell positioned relative to the core. A barrier coating is applied on at least one of the core and the shell, and may be applied to both the core and the shell. The barrier coating limits reaction between the casting system and a casting alloy.