45results about How to "Enhanced ceramic performance" patented technology

The invention belongs to the technical field of paints, and particularly relates to a high-temperature ceramic organosilicon-phenolic epoxy anticorrosive paint and a preparation method thereof. The paint is characterized in that organosilicon-phenolic epoxy resin is synthesized through a chemical grafting method, and the resin simultaneously has an organosilicon chain segment and a phenolic epoxy chain segment. On the one hand, the resin has the characteristics of heat resistance, weather resistance, wear resistance, flexibility and the like of the organosilicon chain segment, the phenolic epoxy chain segment on the resin molecule has a higher metal base material adhesive force than the organosilicon chain segment, and the corrosion resistance effect after the phenolic epoxy chain segment is crosslinked with a curing agent is higher than that of the organosilicon chain segment, thereby solving the problems of low adhesive force and poor anticorrosive effect of the organosilicon paint; and on the other hand, the carbon residue rate of the phenolic epoxy chain segment in a high-temperature environment is high, and the phenolic epoxy chain segment and a thermal degradation product of the organosilicon chain segment in the high-temperature environment can form secondary film forming action, thereby improving the ceramic effect of a coating in the high-temperature environment.

The invention relates to an environment-friendly ablation-resistant ceramic silicone rubber composite material and a preparation method thereof. The composite material consists of silicone rubber, white carbon black, vitrified powder, a fusion aid, silicone oil and a coupling agent. The composite material is prepared by the following steps: first, mixing 50-150 parts of silicone rubber, 5-80 parts of white carbon black, 5-20 parts of coupling agent, 2-80 parts of vitrified powder, 2-30 parts of fusion aid and 0.1-20 parts of silicone oil; then, adding 2-10 parts of vulcanizing agent, uniformly mixing to obtain a sheet; and finally, carrying out hot press molding on the obtained sizing material under the pressure of 10-15MPa and at 100-200 DEG C, and carrying out two-sectional vulcanization by virtue of hot air with temperature of 150-220 DEG C to obtain the ceramic silicone rubber composite material. According to the composite provided by the invention, the ceramic performance of the material is greatly improved while the mechanical property of the composite material is ensured, and therefore the composite material has a wide application range.

A ceramic electronic component includes a first internal electrode that includes a first opposed section and a first extraction section. The first opposed section is opposed to a second internal electrode with a ceramic layer interposed therebetween. The first extraction section is located closer to a first end surface than the first opposed section. The first extraction section includes a first thick section. The first thick section is thicker than a first central section of the first opposed section. The first opposed section includes a first base end section opposed to a second tip section of the second internal electrode closer to the first end surface, with the ceramic layer interposed therebetween, and the first base end section includes a first thin section. The first thin section is thinner than the first central section.

The invention discloses an aluminum-silicon carbide ceramic substrate for an LED. Various raw materials used in an LTCC preparation process are optimized. Aluminum-silicon carbide and aluminum nitride are used as main raw materials. Meanwhile, additives such as alumina micro powder, MCM-41 molecular sieves, glass sintering aids, copper nanoparticles, rare earth oxides, solvents, plasticizers, dispersing agents and binders are added, so that the physical and chemical properties of the ceramic substrate are further optimized. The thermal conductivity of the ceramic substrate is larger than 1000 W / (m*k), the bending strength of the ceramic substrate is larger than 500 Mpa, and the dielectric constant of the ceramic substrate is smaller than 3. Meanwhile, the main raw materials and the additives can be made into the ceramic substrate with the high thermal conductivity through a conventional LTCC preparation method, the preparation process is simple, and industrialization is facilitated.

The invention discloses a ceramic substrate for LEDs. Various raw materials used in the LTCC preparation technology are optimized, aluminum nitride, boron nitride, alumina and beryllium oxides serve as the main raw materials, meanwhile, glass sintering additives, copper and aluminum alloy nano-particles, rare earth oxides, solvents, plasticizer, dispersant, binder and other additives are added, and the physical and chemical properties of the ceramic substrate are further optimized. The thermal conductivity of the ceramic substrate is larger than 400 W / (m*k), the bending strength is larger than 300 Mpa, and the dielectric constant is smaller than 2. Meanwhile, due to a conventional LTCC preparation method, the main raw materials and the additives can be prepared into the high-conductivity ceramic substrate, the preparation technology is simple, and industrialization is facilitated.