57 results about "Spinodal decomposition" patented technology

An anti-glare film is obtained by forming a resin layer having a low refraction index on an anti-glare layer is obtained by coating a transparent plastic film with a liquid composition containing a polymer, a curable resin precursor, and a solvent, evaporating the solvent, forming a phase separation structure by spinodal decomposition, and curing the precursor with light irradiation. The anti-glare film has an uneven surface structure in the anti-glare layer, isotropically transmits and scatters an incident light to show the maximum value of the scattered light intensity at a scattering angle of 0.–10°, and has a total light transmittance of 70–100%. The film prevents dazzle or blur of images on a display surface, and reflection of a surrounding scenery, and improves contrast with reducing whitening of the display, even in a high definition display apparatus.

A novel FeMnAlC alloy, comprising 23˜34 wt. % Mn, 6˜12 wt. % Al, and 1.4˜2.2 wt. % C with the balance being Fe, is disclosed. The as-quenched alloy contains an extremely high density of nano-sized (Fe,Mn)₃AlC_x carbides (κ′-carbides) formed within austenite matrix by spinodal decomposition during quenching. With almost equivalent elongation, the yield strength of the present alloys after aging is about 30% higher than that of the optimally aged FeMnAlC (C≦1.3 wt. %) alloy systems disclosed in prior arts. Moreover, the as-quenched alloy is directly nitrided at 450˜550° C., the resultant surface microhardness and corrosion resistance in 3.5% NaCl solution are far superior to those obtained previously for the optimally nitrided commercial alloy steels and stainless steels, presumably due to the formation of a nitrided layer consisting predominantly of AlN.

This invention is a method for manufacturing a polymer alloy, by making at least two resins used as components miscible, and inducing the spinodal decomposition for causing phase separation, for forming a co-continuous structure with a wavelength of concentration fluctuation of 0.001 to 1 mum or a dispersed structure with a distance between particles of 0.001 to 1 mum. This invention is also a polymer alloy manufactured by the method. The polymer alloy of this invention can provide a molded article, film, fibers and the like respectively with excellent mechanical properties at high productivity.

A BCC type hydrogen-absorbing alloy, which uses a ferroalloy, is advantageous from the aspect of the production cost and exhibits excellent hydrogen absorption and desorption characteristics due to a fine structure constituted by spinodal decomposition even when the iron component is increased. The hydrogen-absorbing alloy is expressed by the general formula AxVayBz, where A is at least one of Ti and Zr, Va is at least one member of the Group Va elements of the Periodic Table consisting of V, Nb and Ta, and B contains at least Fe and is at least one member selected from the group consisting of Cr, Mn, Co, Ni, Cu, Al, Mo and W, each of x, y and z satisfies the relation, in terms of of the atomic number ratio, 0<=x<=70, 0<=y<=50, x+y+z=100, and x/z=0.25 to 2.0, the phase of the body-centered cubic structure is at least 50% in terms of the phase fraction and its lattice constant is at least 0.2950 nm but not greater than 0.3100 nm.

The invention discloses a permanent hydrophilic polymer film with a high mechanical property and a preparation method thereof. A porous film is prepared from a hydroxyl-containing polymer which serves as a blend polymer and has high compatibility with polyvinylidene fluoride and a strong adhesion effect with a melt spinning method or coating-rolling preparation method through solid-liquid phase separation of a thermally-induced phase separation technology, so that the porous film with a three-dimensional penetrated mesh-shaped structure can be obtained or controlled easily under control by adjusting the adding amount of the polymer blend; the film is prepared at a temperature which is lower than a curing temperature of a polymer material, so that the problem of decomposition of the blend polymer under the conventional spinodal decomposition film-preparing condition is solved; the blend polymer has a strong adhesion effect, so that the blend polymer can be combined with the polyvinylidene fluoride with high adhesion without falling easily, the adhesion effect is equivalent to binding crosslinking, and the mechanical property of the film can be improved remarkably. Meanwhile, the preparation process of the porous film is simple, has high adaptability, does not require equipment updating, is convenient to popularize and has good industrial prospect.

An anti-glare film comprising an anti-glare layer is obtained by coating or casting a liquid composition containing a polymer, a curable resin precursor (e.g., an ultraviolet curable resin) and a solvent, on a transparent plastic film; evaporating the solvent; forming a phase separation structure by spinodal decomposition; and curing the curable resin precursor by a light irradiation to form the anti-glare layer. The result anti-glare layer has an uneven structure on the surface thereof, isotropically transmits and scatters an incident light to show the maximum value of the scattered light intensity at a scattering angle of 0.1 to 10°, and has the total light transmittance of 70 to 100%.

The invention discloses a low-elasticity-modulus and high-strength spinodal decomposition type Zr-Nb-Ti alloy material and a preparation method thereof. The Zr-Nb-Ti alloy material comprises the following components in atomic percentage: 20-50% of Ti, 15-45% of Nb and the balance of Zr. The preparation method comprises the following steps: a titanium source, a niobium source and a zirconium sourceare prepared according to designed ratios; zirconium alloy ingots are obtained through multiple times of smelting; zirconium alloy rods are obtained through the zirconium alloy ingots by suction casting; and solid-solution treatment and aging treatment are performed on the zirconium alloy rods in sequence to obtain the Zr-Nb-Ti alloy material. The zirconium alloy material is higher in strength and low in elasticity modulus; the highest strength can reach 1130.8+/-8.5 MPa; and the elasticity modulus is maintained between 40-50 GPa, and is near the elasticity modulus of human bodies.

A light scattering sheet includes: a transparent support; and a light scattering layer on the transparent support, the light scattering layer having a phase-separated convexo-concave structure formed by spinodal decomposition of a solution containing two or more resin materials capable of phase-separation from each other are dissolved in a solvent. In the light scattering layer, the phase-separated convexo-concave structure is formed into a sea-island structure of two or more resin materials including a styrene-acrylonitrile copolymer, and a plurality of domains constituting the islands have random shapes mainly having a string shape, and a transmitted image definition measured according to JTS K 7374 using an optical comb having a width of 2.0 mm is 10% or more and less than 25%.

A light-diffusing layer 16 having at least a bicontinuous phase structure is formed by coating a substrate 14a with a coating liquid composition containing a plurality of resins being different in refractive index with each other, drying the substrate, and heating the resultant to cause spinodal decomposition from the resin-containing layer on a transparent substrate. A transparent conductive layer (or a transparent electrode) 17 may be formed on the light-diffusing layer 16 of the substrate 14a. A liquid crystal cell 13 of a reflective liquid crystal display apparatus may be formed by facing the transparent conductive layer 17 with a reflection electrode 19 formed on the other substrate 14b, and sealing a liquid crystal 18 between a pair of electrodes, 17 and 19. The present invention, therefore, provides a light-diffusing layer capable of uniformly and brightly displaying an image on a screen in a reflective liquid crystal display apparatus of an internal light-diffusing layer system in which the light-diffusing layer is formed on a substrate of a liquid crystal cell.

The invention discloses an intrinsic non-net secondary cementite steel and an application method thereof; the steel comprises the following components by weight percent: 0.8-1.8% of C, 0-3.0% of Al, 0-2.5% of Cr, 0.2-0.8% of Mn, 0-2.0% of Si, 0-0.8% of Mo, 0-0.1% of Nb, 0-0.1% of V, 0-0.1% of Ti, 0-0.05% of Re and the balance Fe. The steel does not have net-shaped secondary cementite in common casting state, annealed state and normalized state, secondary cementite is precipitated in pearlite in a dispersive form and the form of organization is pearlite and dispersive spinodal decomposition organization. The organization is easy for nodulizing which can be realized by heating the organization at 800 DEG C for 1-2h after the routine forging technology. The steel can be widely applied in the fields such as tools, abrasive tools, bearings, rail steels and the like and the steel can improve the carbon content, hardness and wear resistance and service life of traditional materials.

The invention relates to a preparation method of high-elasticity, corrosion-resistant and wear-resistant Cu-Ni-Sn alloy. The Cu-Ni-Sn multi-element alloy is obtained through vacuum induction melting or covering protection type non-vacuum smelting. In the casting forming process, electromagnetic stirring is applied until alloy liquid is complete solidified, and then the as-cast alloy is subjected to homogenization annealing, hot rolling and cogging, solid solution treatment, cold deformation, spinodal decomposition and other processes. The preparation method of the Cu-Ni-Sn alloy is capable ofrefining crystalline grains, reducing dendritic spacing and eliminating alloy microscopic and macroscopic structure and component segregation, provides implementation conditions for follow-up alloy plastic processing, spinodal decomposition and other processes, and has the beneficial effects that energy is saved, the production efficiency is improved, the service life of the alloy is prolonged, and the production cost is reduced.

The invention discloses a novel gold-based composite electrical brush material and a preparation method thereof. The novel gold-based composite electrical brush material is characterized in that a coating layer is gold alloy; a core part is copper alloy; the coating layer of the electrical brush material adopts gold as a matrix and contains a certain mass friction of Cu and Ag; a base layer adopts copper as a matrix; a coating layer material contains alloy with Au and Cu elements; AuCu ordered phases generated from ordering of Au-Cu exert an ageing strengthening function; and the added Ag elements can exert a solid solution strengthening function. According to the novel gold-based composite electrical brush material, a copper alloy core part material is liable to precipitate (CuNi)3Sn phases during the ageing process, the strength of the alloy is improved, and the alloy is strengthened through spinodal decomposition; and composite electrical brush materials with different hardness and different coating layer thicknesses can be obtained through controlling the processing deformation amount, an intermediate annealing technology and an ageing technology, and the highest performances can reach as follows: the hardness HV is larger than or equal to 240 Hv, the coating layer thickness is smaller than or equal to 0.07 mm, and the outer diameter is 0.5 mm.

Multiple emulsions with an “onion” topology are useful vehicles for drug delivery, biochemical assays, and templating materials. They can be assembled by ternary liquid phase separation using microfluidics, but the control over their design is limited because the mechanism of their creation is unknown. Here it is shown that phase separation occurs via self-similar cycles of mass transfer, spinodal decomposition or nucleation, and coalescence into multiple layers. Mapping out the phase diagram demonstrates a linear relation between concentric layer diameters, whose slope depends on the initial ternary composition and the molecular weight of the surfactant. These general rules quantitatively predict the number of droplet layers (multiplicity). Further, self-assembly routes for polymer capsules and liposomes are provided with techniques to assemble lipid-stabilized droplets with ordered internal structures.

The invention discloses a directional regulating method for a systematic structure of a high-strength high-toughness ultra-fine hard alloy material. The method comprises the steps of establishing a researching platform for designing a hard alloy cutter substrate and a wearing-resistant coating microsturcture; performing directional regulating on distribution and dispersion of a crystal grain inhibitor and segregation thickness in a WC/Co interface according to a performance requirement; establishing thermodynamics information of a temperature interval, a solubility interval and phase stability in generating each deposit of a diamond coating, and researching influence of technical conditions such as precursor kind and component and deposition temperature and pressure to properties such as phase kind and component of the diamond coating; and based on a metastable phase graph of a pseudobinary CrN-AlN system and a phase change driving force of each phase, predicting the phase structure and the phase composition of sosoloid at different temperatures, thereby realizing phase field simulation of a CrAlN base coating spinodal decomposition process. According to the method of the invention, a cooperative function and a strengthening and toughening mechanism of the crystal grain growth inhibitor are disclosed in an atom scale, and furthermore directional regulating of the high-strength high-toughness ultra-fine hard alloy microstructure is realized through a thermal-dynamic analysis facility.

A method of forming a coating that includes depositing a multicomponent glass layer on a polymer substrate and depositing a heat absorbing layer on the multicomponent glass layer. Inducing spinodal decomposition of the multicomponent glass layer by annealing the heat absorbing layer, and etching at least one of a phase separated component of the multicomponent glass layer. The spinodal decomposition may be achieved through a pulse thermal or electromagnetic assisted annealing process. The coating may then be used as a hydrophilic surface, or may be fluorinated using conventional methods to produce the superhydrophobic coating.

Spinodal decomposition of Cu alloy, which contains from 0.5 to less than 5.0% of Ti, is suppressed and a low hardness dispersion of Hv 40 or less is obtained over a sheet surface. In addition, an isotropy in terms of tensile strength in the vertical direction over the sheet surface is improved such that it is 50N/mm2 or less. In the hot-rolling of the alloy, it is cooled at a cooling speed of not less than 200K (200° C.)/second at least in a temperature range of between 773K (500° C.) and 573K (300° C.).

A 780 nm band semiconductor laser device has an InGaAsP well layer, phosphorous composition of which is 0.51 smaller than 0.55 to prevent spinodal decomposition in growing InGaAsP. A compressive strain of 0.65% less than 1% and more than 0.25% is introduced into the well layer to reduce threshold current thereof. Thus, the 0.78-μm band semiconductor laser device having the InGaAsP well layer stably operates for a long time even in outputting a high optical power of 100 mW or more. A tensile strain of 1.2% is also introduced into barrier layers within the active region so as to compensate the stress due to the compressive strain of the well layer. As a result, the reliability of the semiconductor laser device is further increased during a high output operation.