Provided are a sodium ion-conductive crystal-containing solid electrolyte sheet capable of giving excellent battery characteristics even when reduced in thickness, and an all-solid-state battery using the same. The solid electrolyte sheet contains at least one type of sodium ion-conductive crystal selected from -alumina and NASICON crystal and has a thickness of 500 m or less and a flatness of 200 m or less.

The present application provides a method of fabricating a thin film transistor. The method includes selecting a nano-structure material having a monotonic relationship between a threshold voltage and a channel length when the nano-structure material is formed as a channel part in a thin film transistor; forming an active layer using the nano-structure material; determining a nominal channel length of a channel part of the thin film transistor based on the monotonic relationship and a reference threshold voltage so that the thin film transistor is formed to have a nominal threshold voltage; and forming a source electrode and a drain electrode thereby forming the channel part in the active layer having the nominal channel length.

The present application provides a method of fabricating a thin film transistor. The method includes selecting a nano-structure material having a monotonic relationship between a threshold voltage and a channel length when the nano-structure material is formed as a channel part in a thin film transistor; forming an active layer using the nano-structure material; determining a nominal channel length of a channel part of the thin film transistor based on the monotonic relationship and a reference threshold voltage so that the thin film transistor is formed to have a nominal threshold voltage; and forming a source electrode and a drain electrode thereby forming the channel part in the active layer having the nominal channel length.

A process for providing fluoresence to a dental ceramic body by treating at least a portion of the outer surface of the dental ceramic body or a precursor thereof with a bismuth containing substance, characterized by the steps of placing the dental ceramic body or the precursor thereof into a closeable container, in particular a crucible; generating a bismuth containing atmosphere in the container and exposing at least a portion of the outer surface of the dental ceramic body or of the precursor to the bismuth containing atmosphere at a temperature above 1000 C.

According to the present invention, a yttrium-fluoride-based sprayed coating that has a Vickers hardness of 350 or higher, includes a YF.sub.3 crystal phase having an orthorhombic crystal system, and does not include a YF.sub.3 crystal phase having a crystal system other than an orthorhombic crystal system is produced by plasma-spraying a spray powder that includes a YF.sub.3 crystal phase having an orthorhombic crystal system and does not include a YF.sub.3 crystal phase having a crystal system other than an orthorhombic crystal system. In the present invention, it is possible to provide a yttrium-fluoride-based sprayed coating that has a high coating hardness and is such that the amount of particles generated upon exposure to a halogen-based gas plasma is low, and such a sprayed coating is exceptional as a sprayed coating formed on a member for a semiconductor-producing device that is used in a semiconductor production step.

According to the present invention, a yttrium-fluoride-based sprayed coating that has a Vickers hardness of 350 or higher, includes a YF.sub.3 crystal phase having an orthorhombic crystal system, and does not include a YF.sub.3 crystal phase having a crystal system other than an orthorhombic crystal system is produced by plasma-spraying a spray powder that includes a YF.sub.3 crystal phase having an orthorhombic crystal system and does not include a YF.sub.3 crystal phase having a crystal system other than an orthorhombic crystal system. In the present invention, it is possible to provide a yttrium-fluoride-based sprayed coating that has a high coating hardness and is such that the amount of particles generated upon exposure to a halogen-based gas plasma is low, and such a sprayed coating is exceptional as a sprayed coating formed on a member for a semiconductor-producing device that is used in a semiconductor production step.

Nanowires useful as heterogeneous catalysts are provided. The nanowires catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to ethylene. Related methods for use and manufacture of the same are also disclosed.

A process for preparing a mesoporous material, e.g., transition metal oxide, sulfide, selenide or telluride, Lanthanide metal oxide, sulfide, selenide or telluride, a post-transition metal oxide, sulfide, selenide or telluride and metalloid oxide, sulfide, selenide or telluride. The process comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to form the mesoporous material. A mesoporous material prepared by the above process. A method of controlling nano-sized wall crystallinity and mesoporosity in mesoporous materials. The method comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to control nano-sized wall crystallinity and mesoporosity in the mesoporous material. Mesoporous materials and a method of tuning structural properties of mesoporous materials.

Rare earth compound particles are prepared by a step of heating an aqueous solution containing rare earth metal ions and urea to form a rare earth compound by a reaction of a hydrolysis product of urea, and the rare earth metal ions. In the heating step, heating the aqueous solution into which an acetylene glycol-ethylene oxide adduct is added.

A zirconia sintered body is provided having a color tone equivalent to the color tone guides of various natural teeth and having the same aesthetics as a natural front tooth. The present invention provides a colored translucent zirconia sintered body comprising zirconia containing greater than 4.0 mol % and not greater than 6.5 mol % of yttria, less than 0.25 mol % of erbia, less than 2,000 ppm of iron oxide in terms of Fe.sub.2O.sub.3, less than 0.01 wt. % of cobalt oxide in terms of CoO, and less than 0.1 wt. % of alumina; the zirconia sintered body having a relative density of not less than 99.90%, a total light transmittance of not less than 25% and less than 40% for light having a wavelength of 600 nm at a sample thickness of 1.0 mm, and a strength of not less than 500 MPa.