3 results about "Amorphism" patented technology

This invention discloses a method for preparing amorphous Cu-MOFs and their applications, relating to the field of metal-organic framework materials technology. The key technical points are: CuCl2 is used as the copper source and 4,4′-bipyridine as the ligand, and Cu-MOFs are synthesized via a solvothermal method. Transmission electron microscopy shows that the obtained material exhibits a typical micron-scale sheet-like morphology. After etching with ammonia, the sample morphology transforms into rough-surfaced nanospheres with a significantly increased pore size, indicating a local rearrangement of its framework structure. X-ray diffraction analysis shows that the original Cu-MOF has high crystallinity, while the diffraction peaks of the etched aCu-MOF essentially disappear, exhibiting amorphous characteristics. As a signal conversion element in a colorimetric sensor, aCu-MOF can achieve reliable detection of ampicillin under neutral conditions. Using thiram as a cofactor, a highly selective thiram colorimetric sensing system can be constructed.

The present disclosure relates to a difficultly compatible heterogeneous material component and its sequential additive manufacturing method and system. A second material (10b) is deposited on the surface of a first base layer (11) formed by a first material (10a) to form a second base layer (12) by using a solid phase additive manufacturing process, an amorphous transition layer (13) is formed at the interface region of the first base layer (11) and the second base layer (12), and the first material (10a) and the second material (10b) constitute a difficultly compatible material system; after the amorphous transition layer (13) is formed, a material same as or compatible with the material of the corresponding deposited side base layer is used to form a target component (10) by layer-by-layer deposition on the first base layer (11) and / or the second base layer (12) by using a melting additive manufacturing process; in the melting additive manufacturing process, the amorphous transition layer (13) is actively cooled by using a cooling device, so that the temperature of the amorphous transition layer (13) is maintained below its crystallization temperature, thereby inhibiting the formation of brittle intermetallic compounds.

To provide a novel soft magnetic material that is lower in density and has superior shapeability compared to existing soft magnetic materials. [Solution] Using hematite as the essential raw material and silica, alumina, and calcium oxide as secondary raw materials, the raw material mixture is adjusted in atomic fraction (%) to be i) 15% to 40%, ii) 0.1% to 21% aluminum, iii) 0.1% to 15% calcium, iv) the total of iron, silicon, aluminum, and calcium is 90% or more, and v) the difference between the total content of aluminum and calcium and the iron content is minus 6% or more. This raw material mixture is heated to approximately 1500°C to melt, held for approximately 1 hour, and then rapidly cooled to obtain a material with a density of 3.0 g / cm³. 3 The following, and with a mass magnetic susceptibility of 1.9 cm², 3 We were able to obtain a novel amorphous magnetic inorganic composition with a value of 1 / g or higher.