3results about How to "Guaranteed high temperature stability" patented technology

The application discloses a preparation method and application of low-carbon magnesite-carbon brick, relates to the technical field of low-carbon magnesite-carbon brick preparation, and comprises the following component materials: 69-73 parts of fused magnesite, 3-7 parts of zirconia, 3.5-7.5 parts of graphite powder, 2.8-3.4 parts of phenolic resin, 2.5-4 parts of a functional additive and 1-2 parts of nanometer materials; the nanometer materials can be added to enhance the strength and toughness of the matrix, can also fill the pores of the fused magnesite and the zirconia, realize the close packing of particles, and reduce the apparent porosity of the material; the zirconia can be added to provide a solid, stable and non-shrinking skeleton support for the brick body, and guarantee the high-temperature stability; the functional additive can be added to optimize the phase composition under high temperature, enhance the thermal shock resistance and wear resistance of the brick body, and ensure that the low-carbon magnesite-carbon brick can still maintain good structural integrity and use reliability under high temperature and complex working conditions.

The invention relates to a transmission electron microscope high-resolution in-situ dual-temperature-zone chip and a preparation method thereof. The transmission electron microscope high-resolution in-situ dual-temperature-zone chip comprises an upper chip and a lower chip, the upper chip and the lower chip are connected through a gasket to form a gas flow channel; a sample groove structure is arranged on the surface of the lower chip; the lower chip comprises two independently controlled heating areas, namely a high-temperature area and a low-temperature area, the high-temperature area is used for evaporating a solid precursor, the low-temperature area is used for observing material deposition and reaction, and a controllable temperature gradient is formed between the high-temperature area and the low-temperature area. According to the invention, a real CVD temperature gradient is simulated in a TEM cavity through double-temperature-zone layout and independent temperature control, so that in-situ observation of gas-solid reaction under an atomic scale is realized; the shallow slot design prolongs the reaction time and improves the experiment reliability; the heater ensures high-temperature stability; the chip provides an advanced experimental platform for CVD mechanism research and process optimization.

The application discloses high-elasticity modified asphalt, modified asphalt mixture, and a preparation method and application thereof. The high-elasticity modified asphalt comprises the following components in parts by weight: 70-88 parts of base asphalt, 10-16 parts of SBS, 2-4 parts of butyronitrile rubber, 8-16 parts of naphthenic oil, 1-3 parts of RET modifier, and 0.3-0.6 parts of anti-stripping agent. The modified asphalt mixture prepared from the high-elasticity modified asphalt has good fatigue resistance and deformation following capacity, and is suitable for steel bridge deck pavement.