The US investment in research and development of nanotechnology accounts for about 25% of the world's investment, which is about the sum of investment from Japan and the EU countries.
Nanotechnology is a high-tech that emerged in the late 1980s. Its basic meaning is to study the composition of matter in the nanometer size range and to create new substances by directly manipulating and arranging atoms and molecules.
The wear-resistant alumina ceramic lining is a special corundum ceramic formed by Al2O3 as a main raw material and a rare metal oxide as a solvent and calcined at a high temperature of 1700 °C.
Each ton of alumina produced about 1.5 tons of red mud, with a particle diameter of 0.088-0.25 mm, a specific gravity of 2.7-2.9, a bulk density of 0.8-1.0, and a melting point of 1200-1250 °C.
It is a high hardness compound with a melting point of 2054 ° C and a boiling point of 2980 ° C. Ionized ionic crystals at high temperatures are commonly used in the manufacture of refractory materials.
GaN is a third-generation semiconductor material with a large forbidden band width, and its superiority in characteristics compared with the first-generation Si and second-generation GaAs.
The silicon carbonitride-coated molybdenum disulfide sheet exhibits a stable cycle of lithium ions, whether the battery electrode is a conventional copper foil method or a self-supporting flexible paper in a bendable battery," Singer said after the reacti
