A surface-coated cutting tool includes: a tool body formed of a tungsten carbide-based cemented carbide; a lower layer and an upper layer provided on the tool body. The lower layer is formed of a W layer. A metal carbide layer is formed directly on the W layer. A metal carbonitride layer is formed directly on the metal carbide layer. The upper layer has an alternately laminated structure of A layer and B layer. The A layer is formed of an (Al, Ti)N layer represented by (Al.sub.xTi.sub.1-x)N (where x is an atomic ratio and satisfies 0.40x0.70). The B layer is formed of an (Al, Ti, Cr, Si, Y)N layer represented by (Al.sub.1-a-b-c-dTi.sub.aCr.sub.bSi.sub.cY.sub.d)N (where a, b, c, and d are atomic ratios and satisfy 0a0.40, 0.05b0.40, 0c0.20, and 0.01d0.10).

The average thickness t.sub.T of a magnetic recording medium meets the requirement that t.sub.T5.5 [m], and the dimensional change amount w in the width direction of the magnetic recording medium with respect to the tension change in the longitudinal direction of the magnetic recording medium meets the requirement that 700 ppm/Nw.

The present invention addresses the problem of providing a barrier resin film exhibiting excellent barrier properties without adopting a multilayer structure such as the structures used by the prior art. A barrier resin film obtained by forming a vapor-deposited aluminum oxide film on the surface of a resin substrate, wherein an elementally bonded structural unit represented by Al.sub.3 is distributed in the vapor-deposited aluminum oxide film, and the intensity ratio (Al.sub.3/Al.sub.2O.sub.3100) of the maximum Al.sub.3 concentration elementally bonded structure section according to Time-of-Flight secondary ion mass spectrometry (TOF-SIMS) is 1-20, inclusive.

A surface-coated cutting tool includes a base material and a coating film provided on a surface of the base material, wherein the coating film includes a first alternating layer provided on the base material and a second alternating layer provided on the first alternating layer, the first alternating layer includes A and B layers, the second alternating layer includes C and D layers, each of one or plurality of the A layers is composed of a nitride or carbonitride of Al.sub.aCr.sub.bM1.sub.(l-a-b), each of one or plurality of the B layers is composed of a nitride or carbonitride of Al.sub.cTi.sub.dM2.sub.(l-c-d), each of one or plurality of the C layers is composed of a nitride or carbonitride of Ti.sub.eSi.sub.fM3.sub.(l-e-f), and each of one or plurality of the D layers is composed of a nitride or carbonitride of Ti.sub.gSi.sub.hM4.sub.(l-g-h).

In some examples, the disclosure describes a film including a rare-earth element-doped metal stannate exhibiting an electrical conductivity of at least about 10.sup.4 S/cm at room temperature, where the metal includes at least one of barium, strontium, calcium, or zinc.

A cutting tool includes: a substrate; and a coating film formed on the substrate, wherein the coating film includes a first layer formed on the substrate, and a second layer formed on the first layer, the first layer is composed of a boride including titanium as a component element, and the second layer is composed of a nitride including zirconium as a component element.

A cutting tool includes: a substrate; and a coating film formed on the substrate, wherein the coating film includes a first layer formed on the substrate, and a second layer formed on the first layer, the first layer is composed of a boride including zirconium as a component element, and the second layer is composed of a nitride including zirconium as a component element.

The average thickness t.sub.T of a magnetic recording medium meets the requirement that t.sub.T5.5 [m], and the dimensional change amount w in the width direction of the magnetic recording medium with respect to the tension change in the longitudinal direction of the magnetic recording medium meets the requirement that 700 ppm/Nw.

A method is disclosed, which can comprise via a transonic gas jet, depositing a thin film of LiPON on a substrate via a directed vapor deposition process. The transonic gas jet transports a thermally evaporated vapor cloud comprising the LiPON, wherein, the transonic gas jet comprises one of (a) substantially entirely nitrogen (N.sub.2) gas; or (b) nitrogen (N.sub.2) gas as a dopant in a concentration greater than 10% by volume in an inert carrier gas.

Implementations of the present disclosure generally relate to separators, high performance electrochemical devices, such as, batteries and capacitors, including the aforementioned separators, and methods for fabricating the same. In one implementation, a method of forming a separator for a battery is provided. The method comprises exposing a metallic material to be deposited on a surface of an electrode structure positioned in a processing region to an evaporation process. The method further comprises flowing a reactive gas into the processing region. The method further comprises reacting the reactive gas and the evaporated metallic material to deposit a ceramic separator layer on the surface of the electrode structure.