Disclosed are a method of manufacturing a billet used in plastic working for producing a composite member and a billet manufactured by the method. The method includes (A) ball-milling powders of two more materials to prepare a composite powder and (B) preparing a multi-layered billet containing the composite powder. The multi-layered billet includes a core layer and two or more shell layers. The shell layers except for the outermost shell layer are made of the composite powder. The outermost shell layer is made of a pure metal or metal alloy. The composite powders contained in the core layer and each of the shell layers have different compositions. The method has an advantage of manufacturing a plastic working billet being capable of overcoming the limitation of a single-material billet and enabling production of a characteristic-specific composite member such as a clad member.

A method for producing a rare earth aluminate sintered body includes: preparing a molded body by mixing a fluorescent material having a composition of a rare earth aluminate and a raw material mixture comprising an oxide containing at least one rare earth element Ln selected from the group consisting of Y, La, Lu, Gd, and Tb, an oxide containing Ce, an oxide containing Al, and optionally an oxide containing at least one element M.sup.1 selected from the group consisting of Ga and Sc; and calcining the molded body to obtain a sintered body.

The invention is a process for manufacturing a nano aluminum/alumina metal matrix composite and composition produced therefrom. The process is characterized by providing an aluminum powder having a natural oxide formation layer and an aluminum oxide content between about 0.1 and about 4.5 wt. % and a specific surface area of from about 0.3 and about 5 m.sup.2/g, hot working the aluminum powder, and forming a superfine grained matrix aluminum alloy. Simultaneously there is formed in situ a substantially uniform distribution of nano particles of alumina. The alloy has a substantially linear property/temperature profile, such that physical properties such as strength are substantially maintained even at temperatures of 250 C. and above.

A coil electronic component includes a body including a plurality of insulating layers and coil patterns disposed on the insulating layers, and external electrodes formed on an external surface of the body and connected to the coil patterns. The plurality of insulating layers include a NiCuZn based ferrite, and the NiCuZn based ferrite has a content of Ni within a range from 5 to 15%, a content of Cu within a range from 5 to 10%, and a content of Zn within a range from 28 to 35% based on a mole ratio.

The sinter-bonding composition contains sinterable particles containing an electroconductive metal. The average particle diameter of the sinterable particles is 2 m or less and the proportion of the particles having a particle diameter of 100 nm or less in the sinterable particles is not less than 80% by mass. The sinter-bonding sheet (10) has an adhesive layer made from such a sinter-bonding composition. The dicing tape with a sinter-bonding sheet (X) has such a sinter-bonding sheet (10) and a dicing tape (20). The dicing tape (20) has a lamination structure containing a base material (21) and an adhesive layer (22), and the sinter-bonding sheet (10) is positioned on the adhesive layer (22) of the dicing tape (20).

A turbine engine component may comprise a Ceramic Matrix Composite (CMC) structure including a plurality of nominally dense plies, wherein each of the plurality of the nominally dense plies are bonded by at least one of a Field Assisted Sintering Technique (FAST), a Spark Plasma Sintering (SPS), or a localized heating at a bonding interface. The turbine engine component may include an airfoil extending between a first platform and a second platform, wherein the airfoil, the first platform, and the second platform define the CMC structure.

Disclosed are a method of manufacturing an aluminum alloy clad section, and an aluminum alloy clad section manufactured by the method. The method includes preparing a composite powder by ball-milling aluminum powder and carbon nanotubes, preparing a billet from the composite powder, and subjecting the billet to direct extrusion using an extrusion die. The method is simple in procedure and uses simple equipment because it is based on direct extrusion which is suitable for mass production. Thus, the method is capable of producing a lightweight high-strength functional aluminum alloy clad section having a competitive advantage in terms of price over conventional aluminum alloy clad sections.

A coating source for physical vapor deposition to produce doped carbon layers. The coating source is produced by way of sintering from pulverulent components and is formed of carbon as matrix material in a proportion of at least 75 mol % and at least one dopant in a proportion in the range from 1 mol % to 25 mol %.

A method of additively manufacturing an article includes forming a first portion of the article by three-dimensional printing of a plurality of first layers from a first powder material cut having a first average particle size corresponding to a first feature resolution. The first layers have a first average layer thickness. The method also includes forming a second portion of the article by three-dimensional printing of a plurality of second layers from a second powder material cut having a second average particle size corresponding to a second feature resolution less than the first feature resolution. The second portion includes at least one feature. The second layers have a second average layer thickness less than the first average layer thickness. A three-dimensional printing system and an article formed from a powder material by three-dimensional printing are also disclosed.

A three-dimensional production method for a functional element structure body according to the invention is a three-dimensional production method for a functional element structure body, which includes an electrical functional element section having a terminal and an insulating member provided on the periphery of the functional element section in a state where at least the terminal is exposed to the outside, and includes a layer formation step of forming one layer in a layer forming region by supplying a first flowable composition containing first particles for the functional element section from a first supply section, and supplying a second flowable composition containing second particles for the insulating member from a second supply section, a shaping step of shaping the functional element structure body by repeating the layer formation step, and a solidification step of performing solidification by applying energy to the first particles and the second particles in the layer.