An aluminum alloy substrate for magnetic disks, including an aluminum alloy containing: 1.0 to 6.5 mass % of Mg; and the balance consisting of Al and unavoidable impurities, in which the distribution of Si—K—O-based particles with a longest diameter of 1 μm or more adhering to the surface from the surrounding environment is equal to or less than one particle/6,000 mm.sup.2; and in which the distribution of Ti—B-based particles with a longest diameter of 1 μm or more present on the surface is equal to or less than one particle/6,000 mm.sup.2, and a magnetic disk using the aluminum alloy substrate for magnetic disks.

Multi-terminal capacitor devices and methods of making multi-terminal capacitor devices are described herein. The multi-terminal capacitor devices may include a plurality of individual capacitors arranged in a single device layer, such as high surface area capacitors. A individual capacitor may include an aluminum foil-based electrode, an aluminum oxide dielectric layer conformal with the aluminum foil-based electrode, and a conductive material electrode, such as a conducting polymer or a conductive ceramic, in conformal contact with the dielectric layer.

Processes for producing layered components that may include depositing a strike layer on a substrate; forming a nanomaterial layer on the strike layer, the nanomaterial layer having a nanotextured surface comprising a plurality of nanofeatures; embedding a polymeric material at least partially within the nanotextured surface; and separating the strike layer from the substrate to obtain the layered component. Layered components that may include a nanomaterial layer having a nanotextured surface comprising a plurality of nanofeatures; and a polymeric material at least partially embedded within the nanotextured surface. Nanotextured polymeric materials and layered components produced by various processes.

A discretized-flow electrode for use in electrochemical machining (ECM) and a corresponding method and system for using the discretized-flow cathode are disclosed. The machining face of the discretized-flow cathode is divided into a plurality of discrete sections. The discrete sections may be geometrically shaped, and they are separated at the machining face by an electrolyte flow outlet channel, and each discrete section includes an electrolyte flow inlet local to the discrete section. The plurality of discrete sections of the machining face of the discretized-flow electrode divide the electrolyte flow into approximately equal portions for even electrolyte flow across the machining face.

Compositions for electroless plating baths and their use are disclosed, and more particularly different solutions each usable to both makeup an original bath and to replenishment of the original bath.

Compositions for electroless plating baths and their use are disclosed, and more particularly different solutions each usable to both makeup an original bath and to replenishment of the original bath.

A method of manufacturing a bright surface product comprises a step of performing electroless plating to form a first metal film on a base coat layer formed on a substrate, a step of performing electrolytic plating to form a second metal film thereon so that the bonding strength between each film of a multi-layered metal film comprising the first metal film and the second film is higher than the bonding strength between the base coat layer and the first metal layer, a step of integrally and discontinuously segmentalizing the multi-layered metal film with cracks to form an island-like metal film comprising a collection of fine multi-layered metal regions with island-like structures; and a step of forming a translucent top coat layer to cover the fine multi-layered metal regions of the island-like metal film and enter into the cracks to make contact with the base coat layer.

An aluminum alloy substrate for magnetic disks, including an aluminum alloy containing Fe as an essential element; at least one of Mn or Ni as selective elements; and the balance including Al and unavoidable impurities, with the total amount of Fe, Mn, and Ni having a relationship of 0.10 to 7.00 mass %; in which the distribution of Si—K—O-based particles with a longest diameter of 1 μm or more adhering to the surface from the surrounding environment is equal to or less than one particle/6,000 mm.sup.2, and in which the distribution of Ti—B-based particles with a longest diameter of 1 μm or more present on the surface is equal to or less than one particle/6,000 mm.sup.2; and a magnetic disk using the aluminum alloy substrate.

An aluminum alloy substrate for magnetic disks, including an aluminum alloy containing Fe as an essential element; at least one of Mn or Ni as selective elements; and the balance including Al and unavoidable impurities, with the total amount of Fe, Mn, and Ni having a relationship of 0.10 to 7.00 mass %; in which the distribution of Si—K—O-based particles with a longest diameter of 1 μm or more adhering to the surface from the surrounding environment is equal to or less than one particle/6,000 mm.sup.2, and in which the distribution of Ti—B-based particles with a longest diameter of 1 μm or more present on the surface is equal to or less than one particle/6,000 mm.sup.2; and a magnetic disk using the aluminum alloy substrate.

A sheet material includes a resin layer containing a binder and polypyrrole particles, an electroless plating film provided on the side of one main surface of the resin layer and including first electroless plating films and a second electroless plating film, and a transparent base material provided on the side of the other main surface of the resin layer.