36 results about "Directed crystallization" patented technology

The invention provides an organic compound adiabatic cooling crystallization method and device capable of reducing operation cost and equipment cost. In the crystallization tank 20, the target organic compound containing the refrigerant is subjected to adiabatic cooling and evaporation of the refrigerant, and the crystallization slurry generated by this operation is taken out from the crystallization tank 20; operating above pressure and directing it into the absorption condenser 10; in the absorption condenser 10 the pressurized steam is cooled and condensed while remaining in contact with the solution of the organic compound; the liquid from this absorption condensation is finally directed to crystallization slot 20.

The invention discloses a device and a method for machining high-density aluminum oxide by plasma, and belongs to the technical field of high-density aluminum oxide for sapphire crystals. The device is characterized in that a radio frequency plasma generator (8) and a plasma torch (10) are arranged below a feed hopper, a high-frequency induction coil (7) is wound outside the plasma torch (10), a deposition platform (12) for receiving materials is arranged below the plasma torch (10), and aluminum oxide powder is fed by the feed hopper, instantly melted in the process of falling in the plasma torch (10), solidified in a directional crystallization manner on the deposition platform (12) to obtain the high-purity high-density aluminum oxide. By the aid of the device and the method, the high-purity aluminum oxide cannot be polluted, parts of impurities in the aluminum oxide can be volatilized under the action of high-temperature plasma, and the aluminum oxide is further purified. Continuous process can be kept, production efficiency is accelerated, and the stable performance of the aluminum oxide can be kept.

A flexible organic light emitting diode display and manufacturing method thereof are provided. The method includes: performing a first patterning process on an amorphous silicon film; performing a crystallization treatment on the amorphous silicon film which has been processed by the first patterning process to form an oriented crystalline polycrystalline silicon film; performing a second patterning process on the polycrystalline silicon film to form a channel; and sequentially forming a gate, a source, a drain, an OLED display layer, and a packaging layer over the channel.

The invention discloses a cartilage extracellular matrix and silk fibroin composite orientation cartilage support and a preparation method thereof and belongs to the biological tissue engineering technology. According to the cartilage extracellular matrix and silk fibroin composite orientation cartilage support and the preparation method of the cartilage support, cartilage extracellular matrixes are prepared through articular cartilage of people, pigs, cows or sheep, silk fibroin is prepared through mulberry silk, after the cartilage extracellular matrixes and the silk fibroin are evenly mixed according to a specific proportion, directed crystallization is performed under a certain temperature, ultraviolet cross linking is firstly performed after freezing and drying, and then cross linking of carbodiimide and N-hydroxysuccinimide or glutaraldehyde and genipin is performed so that the cartilage extracellular matrix and silk fibroin composite orientation cartilage support can be prepared. Due to the design, biocompatibility is good, and immunological rejective reaction is avoided; a composition structure and mechanical properties are similar to those of cartilage extracellular matrixes of people; material sources are wide, cost is low, the preparation technology is simple, the cartilage extracellular matrix and silk fibroin composite orientation cartilage support can be used for constructing tissue engineering cartilage and repairing cartilage degradation, and clinical application prospects are good.

A monocrystal and orientational cylindrical crystal combined blade used for gas turbine features that its middle region is orientational cylindrical crystals and its gas inlet and outlet edges have monocrystal form. Its manufacture method includes such steps as installing a composite crystallizer to the crystallizer of orientational crystallizing furnace, smelting by 100-150 of overheat, regulating the temp of mould heater to 1500-1530 deg.C for upper region and 1550-1580 deg.C for lower region, casting, and moving mould downward at 5-7 mm / S.

A method for preparing Fe-Ga-In-Tb alloy rods by deep supercooling through ceramic filtration, using a new Fe-Ga-In-Tb giant magnetostrictive alloy composition system to overcome the difficulty of melting iron-gallium binary composition alloys Disadvantages: For the first time, a nanoporous ceramic filter is used to filter the alloy melt to improve the purity of the Fe-Ga-In-Tb melt, so that the alloy melt is deeply supercooled, and then the alloy is heated again to make the alloy liquid through the deep subcooling directional crystallization system Metals stimulate directional crystal growth. The alloy bar prepared by the invention has smooth surface, high degree of orientation, precise and uniform composition, and good comprehensive performance.