Technological frontier
Progress in the research of silicon carbide in Ningbo Materials
The Advanced Energy Materials Engineering Laboratory of Ningbo Materials Technology and Engineering Institute of Chinese Academy of Sciences has been planned, and the "high-performance pioneer molecular structure design and ceramic transformation" is one of the development directions of key disciplines, in the Chinese Academy of Sciences and Ningbo "3315 Plan" A With the support of the class, focus on the customization, efficient conversion, and engineering of the pioneer, based on the pre-laboratory micrograph, independently designed and successfully constructed two mounds of solid polycarcane and liquid polycoardilane Platform, which laid a solid foundation for follow-up engineering and application research. Among them, the liquid pioneers have been successfully synthesized by running commissioning, successfully synthesizing the dominant polycarbonilane target product.
"Foam tile" 1000 ° C high temperature is not deformation
The Chongqing Green Intelligent Technology Research Institute of the Chinese Academy of Sciences issued the autonomous green new building materials foam ceramics, which not only enhanced, moisture-proof, sound insulation, but also fired, and did not deform at a high temperature at 1000 ° C. The results can be adapted to harsh environments by modulating the components of the foam ceramics, such as the temperature of a large amount of dilute sulfuric acid and cold and heat mutation in the thermal electrical desulfurization tower. Ultra-light density makes it possible to float the water for a long time, which can be used in life-saving equipment or sea breeding and planting, and is also a high-quality material for the future planning of construction in my country.
Progress in the study of the aluminum garnet-based magnetine ceramics in Shanghai
Zhou Shengming, the study of the Shanghai Optics Precision Machinery Research Institute, made a new progress in the research of the 铽 铽 garga (TAG) magnetorant ceramics, the first time the ZrO2 to do sintering aids in the international preparation of high-quality aluminum pomegranate Magnetic light transparent ceramic, its linear transmittance at 1064 nm reached 82.04%, reaching domestic leading, international advanced level.
Researchers have developed 10 seconds of rapid use of ceramics
Maryland University Materials Science and Engineering, Hu Liang Bing, Mo Yixiang, Virginia University Zheng Xiaoyu and California San Diego Dragonfly Correction Development Ultra-high-speed high-temperature sintering method has fast heating speed, fast cooling speed, uniform temperature distribution, and sintering temperatures high 3000 degrees Celsius and other advantages. Combined, the total treatment time required for these processes is less than 10 seconds, which is more than 1,000 times higher than the traditional sintering furnace. This ceramic material has broad application prospects in solid-state batteries, fuel cells, 3D printing technologies.
Progress in the research of new ferroelectric ceramics in Shanghai silicate
The research team of Dong Xianlin and Wang Gongshui, the researcher of the Shanghai Silicate Institute, found a new type, high-performance, lead-free ferroelectric material (AG0.935K0.0.065) NBO3 (AKN), which is more than currently used. Ceramics have higher energy storage density and better temperature stability, which can be used for energy storage and explosion.
Lanzhou University has made progress in the preparation of Gangu nanoparticles
The Professor Li Jiangong, the Physics Science and Technology of Lanzhou University, has developed the raw material of toughness alumina ceramics, which has developed the raw material of tough alumina ceramics. The results are in the approximate academic journals in the international top academic journals on May 29th. Science (Science), the team-prepared corundane nano particle specific surface area is higher than 100m2 / g, denies the team of well-known scientists in this field, and the previous unmanufactured surrounded by 100m2 in the science of well-known scientists. The conclusion of the corundum nano particles of / g, and the average particle size of 3.3 nm is developed.
China University of Science and Technology realizes room temperature spin control of communication band silicon carbide
Academician of the Chinese Academy of Sciences, Professor Guo Guangcan, a professor of China University of Science and Technology, made a new progress in the study of silicon carbide-based self-rotation control. When the team Li Chichao, Xu Jin, Wang Junfeng et al. And its partners have realized the nitrogen-vacuum (NV) moisture in silicon carbide in the world, and realize a single NV color controller and optical detection magnetic resonance spectrum. Detection.
Daily method for gallium nitride single crystal substrate
Northeastern Northeastern University, Japanese Steel Company and Mitsubishi Chemical Company have developed a low-pressure acid ammonia heat (LPAAT) method of a gallium nitride single crystal substrate having a volumetric diameter of 2 inches. By realizing the growth of low pressure crystals, large crystals can be massaged with relatively small crystal growth furnace. The LPAAT method is used in the 2-inch lithium nitride single crystal substrate made of SCAAT-based gallium nitride seed crystals, which has crystal molas (the half value width of the X-ray rocking curve of the symptoms and the non-assay surface) in 28 seconds. ), The substrate has almost no tape (about 1.5 km) of the curvature (the radius of curvature is about 1.5 km).
Xi'an Jiaotong University researchers have made new progress in the field of elastic ceramic gas gel
Xi'an Jiaoyao Hongjie Professor Tessage Group With SiC Nanowires, the SiC @ SiO2 nano-airborne gel with anisotropic pores and multi-stage thermal resistance structures were constructed by anisotropic multi-level aperture structural design.
Progress in the study of high-density high temperature thermosensitive composite ceramics in Xinjiang
The Study of the Institute of Physics and Chemistry, the Chinese Academy of Physics and Chemical Technology, Chinese Academy of Sciences, Common Aiimin Research Team, combined with cold sintering technology and traditional solid phase reactive sintering process, starting from the composition of the composite ceramic phase, select the hemondsite cacenbwo8 with four square phases and has The orthogonal percutaneous calcium-titanium mine lamno3 recombination achieves high melting point high sintering temperature 0.3cAcenbwO8-0.7LAMNO3 composite ceramic material is densified (relative density up to 94.5%).
Songshan Lake Material Lab Advanced Ceramics and Composite Materials Releases New Results
On August 4th, the Institute of Advanced Ceramics and Composite Materials, Songshan Lake Materials, announced the latest research results - Metal-based ceramic composites, sand machine substances, will have a strong solution to the mechanism sandstone industry problem.
Advances in the study of high thermal conductive silicide ceramics in Shanghai silicate
The Graduant of Shanghai Silicate Research Institute has carried out research on high performance broth. Table of α-Si3N4 raw material powder