Abstract:
This invention discloses novel field emitters which exhibit improved emission characteristics combined with improved emitter stability, in particular, new types of carbide or nitride based electron field emitters with desirable nanoscale, aligned and sharped-tip emitter structures.
Abstract:
A light illuminated photo frame comprises a frame body, a light emitting device having a light reflection board coated with a light scattering film and a fluorescent tube, an ornamental frame with a decoration pattern and a loop cover provided with a plurality of fixing tongues. The reflection board is a transparent panel suiting the depression of the frame body and has a plurality of uniformly distributed reflecting dots. The fluorescent tube is disposed on one edge of the reflection board for illuminating throughout the board. The light scattering film is provided with a roughened surface and covers a front side of the reflection board. A photo is disposed between the light emitting device and the loop cover, by which the fixing tongues around the cover are inserted into and locked with the flanges around the frame body, so as to assemble the components of the photo frame together.
Abstract:
A magnetoresistive medium for sensing magnetic fields is formed by a metallic alloy that contains spinodally decomposed ferromagnetic particles having at least one thickness dimension equal to or less than approximately 0.01 .mu.m.
Abstract:
A mechanically stable and oriented scanning probe tip comprising a carbon nanotube having a base with a gradually decreasing diameter, with a sharp tip at the probe tip. Such a tip or an array of tips is produced by depositing a catalyst metal film on a substrate, depositing a carbon dot on the catalyst metal film, etching away the catalyst metal film not masked by the carbon dot, removing the carbon dot from the catalyst metal film to expose the catalyst metal film and growing a carbon nanotube probe tip on the catalyst metal film. The carbon probe tips can be straight, angled, or sharply bent and have various technical applications.
Abstract:
Nanotube assemblies and methods for manufacturing the same, including one or more protective layers. A nanotube assembly may include a substrate, a nanotube array, formed on the substrate, and a protective layer, formed on a first area of the substrate where the nanotube array is not, the protective layer reducing the formation of nanocones, and promoting the formation of nanotubes, which make up the nanotube array.
Abstract:
A mechanically stable and oriented scanning probe tip comprising a carbon nanotube having a base with gradually decreasing diameter, with a sharp tip at the probe tip. Such a tip or an array of tips is produced by depositing a catalyst metal film on a substrate (10 & 12 in FIG. 1(a)), depositing a carbon dot (14 in FIG. 1(b)) on the catalyst metal film, etching away the catalyst metal film (FIG. 1(c)) not masked by the carbon dot, removing the carbon dot from the catalyst metal film to expose the catalyst metal film (FIG. 1(d)), and growing a carbon nanotube probe tip on the catalyst film (16 in FIG. 1(e)). The carbon probe tips can be straight, angled, or sharply bent and have various technical applications.
Abstract:
Nanotube assemblies and methods for manufacturing the same, including one or more protective layers. A nanotube assembly may include a substrate, a nanotube array, formed on the substrate, and a protective layer, formed on a first area of the substrate where the nanotube array is not, the protective layer reducing the formation of nanocones, and promoting the formation of nanotubes, which make up the nanotube array.
Abstract:
A mechanically stable and oriented scanning probe tip comprising a carbon nanotube having a base with gradually decreasing diameter, with a sharp tip at the probe tip. Such a tip or an array of tips is produced by depositing a catalyst metal film on a substrate (10 & 12 in FIG. 1(a)), depositing a carbon dot (14 in FIG. 1(b)) on the catalyst metal film, etching away the catalyst metal film (FIG. 1(c)) not masked by the carbon dot, removing the carbon dot from the catalyst metal film to expose the catalyst metal film (FIG. 1(d)), and growing a carbon nanotube probe tip on the catalyst film (16 in FIG. 1(e)). The carbon probe tips can be straight, angled, or sharply bent and have various technical applications.
Abstract:
This invention discloses novel field emitters which exhibit improved emission characteristics combined with improved emitter stability, in particular, new types of carbide or nitride based electron field emitters with desirable nanoscale, aligned and sharped-tip emitter structures.
Abstract:
An article comprising an alloy exhibiting high magnetostriction in relatively low applied magnetic fields is provided, the alloy capable of being formed in a relatively easy manner and having desirable physical properties. The Co--Fe alloy of the invention exhibits a magnetostriction of at least 100.times.10.sup.-6 in a magnetic field less than 400 Oe, advantageously in a magnetic field less than 100 Oe. The alloy is formed by plastically deforming the alloy, e.g., by cold rolling, to a reduction in cross-sectional area of at least 50%, and then heat treating the alloy to induce recrystallization. This combination of plastic deformation and recrystallization was found to provide desirable grain growth and microstructure. The resultant alloy is useful in a variety of device components, including transducers, frequency filters, signal delay lines, and optical fiber grating devices.