33 results about "Transmission microscopy" patented technology

The magnetic tape includes a magnetic layer containing ferromagnetic hexagonal ferrite powder, abrasive, and binder on a nonmagnetic support, wherein the ferromagnetic hexagonal ferrite powder exhibits an activation volume of less than or equal to 1,800 nm3, and inclination, cos θ, of the ferromagnetic hexagonal ferrite powder relative to a surface of the magnetic layer as determined by sectional observation by a scanning electron transmission microscope is greater than or equal to 0.85 but less than or equal to 1.00.

An object of the invention is to provide an azo pigment having extremely good dispersibility and dispersion stability and having excellent hue and tinctorial strength and, preferably, having a long axis observed with a transmission microscope of from 0.01 μm to 30 μm. An azo pigment which is represented by the following formula (1) and having characteristic peaks at Bragg angles (2θ±0.2°) of (i) 7.6° and 25.6°, (ii) 7.0°, 26.4°, and 27.3°, or (iii) 6.4°, 26.4°, and 27.2° in X-ray diffraction with characteristic Cu Kα line, or a tautomer thereof:

The invention discloses a method for in situ generating a nano cellulose microfibril reinforced polymer composite material, comprising the following steps: using ionic liquid as a primary solvent, dissolving cellulose, or mixing cellulose with other polymers via solution mixing, and controlling the solubility of the cellulosic material in the solvent to maintain naturally occurring nano cellulose microfibril in the cellulosic material, so as to in situ obtain the nano cellulose microfibril reinforced polymer composite material. The nano microfibril can be observed under a transmission microscope obviously, which is different from the completely dissolved cellulose solution. In the preparing process, the dissolving temperature is controlled within 30-150 DEG C, and stirring and vacuum deaeration are used as auxiliary. By controlling the dissolving time, solution concentration and ratio of mixing, a polymer solution containing cellulose microfibril with dimension of 5-300 nanometers can be obtained. The polymer solution can be used for preparing composite material fiber, hollow fibrous membrane, diaphragm, film, gel, porous material and other known applications of enhanced material.

The invention discloses a fixing device for a transmission microscope sample, which comprises a metal sheet, an elastic piece and a fastening piece. The metal piece is composed of connected sheet parts and a hollow ring-shaped fixing part; the end of the sheet is used to fix the metal mesh, and the inner wall of the ring-shaped fixing part has a ring-shaped step; the elastic part is arranged on the ring-shaped step; the fastener includes the first A fixing element and a second fixing element, the first fixing element fixes the annular fixing component on the second fixing element through an elastic piece. The invention avoids the direct contact between the first fixing element of the fastener and the metal sheet, and improves the problem of deformation of the metal sheet under force.

The invention discloses a method for preparing a planar sample for a transmission electron microscope at a specific failure point. The method comprises the following steps: intercepting a piece of the sample close to the failure point on the sample by a focused ion beam, sucking the intercepted sample by a Pick-Up system and vertically placing the intercepted sample on the surface of a silicon slice, and fixing the sample on the surface of the silicon slice by means of focused ion beam gold-plating to prepare the planar sample for the transmission electron microscope. According to the method disclosed by the invention, by accurately intercepting the sample by the focused ion beam, a process of manually grinding is omitted, the success rate of sample preparation and the quality of the sample are greatly improved, and great assistance is provided for the subsequent failure analysis and structure analysis.

The invention provides a tungsten foil mesh for a transmission microscope and a scanning microscope. The thickness of the tungsten foil mesh is from 0.01 mm to 0.05 mm and the number of mesh holes is from 1 mesh to 600 meshes. A production method of the tungsten foil mesh comprises drawing, tungsten foil processing, performing photoresist, pre-baking, performing exposure, developing, rinsing, post-baking, etching and removing of photoresist. The production method of the tungsten foil mesh for the transmission microscope and the scanning microscope has the advantage of enabling obtained mesh holes of electron microscope tungsten foil meshes to be clear and hole walls of the electron microscope tungsten foil meshes to be smooth.

The invention provides a nickel foil mesh for a transmission microscope and a scanning microscope. The thickness of the nickel foil mesh is from 0.01 mm to 0.05 mm and the number of mesh holes is from 1 mesh to 600 meshes. A production method of the nickel foil mesh comprises drawing, nickel foil processing, performing photoresist, pre-baking, performing exposure, developing, rinsing, post-baking, etching and removing of photoresist. The production method of the nickel foil mesh for the transmission microscope and the scanning microscope has the advantage of enabling obtained mesh holes of electron microscope nickel foil meshes to be clear and hole walls of the electron microscope nickel foil meshes to be smooth.

The present invention concerns a system and method for calibration and adjustment of the pixel color values represented within a digital image of a sample by a transmission microscope. Furthermore the present invention is directed to providing sufficient color information in order to generate a color mapping matrix that allows for the creation of a synthetic image to depict the sample under a desired illumination. The system and method provides a solution that generates a destination-device independent image that is configurable to any calibrated display device.