According to the news from the Chinese Academy of Sciences: In the 1980s, the Poon Research Group of the University of Virginia and Inoue Research Group of Tohoku University in Japan discovered that Al-based alloys can form amorphous structures through rapid solidification.
Al-based amorphous alloys and partially-crystallized nanocomposite ribbons exhibit super high specific strength (5.2×105 Nmkg-1) and good plasticity, and are considered to be promising new generation ultra-high strengths. Lightweight alloys. However, compared with alloys such as Pd, Mg, Zr, Fe, etc., Al-based alloys have low glass forming ability, and it is not possible to directly form bulk materials having a size larger than 1 mm by melt casting. The acquisition of Al-based metallic glass bulk material mainly depends on the way of powder consolidation. The exploration of alloy systems with high glass forming capabilities and the ability to form bulk materials through direct melt casting has always been the goal pursued by people.
In recent years, Wang Jianqiang's research group of Shenyang National Materials Science (Joint) Laboratory cooperated with Professor John Marin of the Johns Hopkins University, under the support of the “973†Program of the Ministry of Science and Technology and the National Natural Science Foundation of China, in Al-based metallic glass. The structure and the glass forming ability have been studied and explored for many years, and important progress has been made relatively recently.
In the Al-TM (transition metal)-RE (rare earth)-based ternary alloy system, they calculated two atomic cluster structures with TM and RE as solute centers, and they were coupled by dense clusters of clusters. Alloy composition design, in the Al-Ni-Co-Y-La five-element alloy system to obtain a 1mm diameter aluminum-based metal glass rod (aluminum content of 86at%).
This is the first time in the world that an aluminum-based bulk material has been prepared by direct melt casting to produce a single amorphous phase. The fracture strength data of the bulk material was obtained through compression experiments, and the deformation and fracture mechanism controlled by a single shear zone was observed. These work have an important role in promoting the application of aluminum-based amorphous metal materials.
This lamp is exquisite in appearance, it can be used indoors and outdoors.Mainly used to outline the outline of buildings; built-in light sources for outdoor lamps; indoor and outdoor LED advertising displays; also as indoor decorative light sources.
Features:waterproof outdoor;high light efficiency;heat disspates quickly,long service life;
Features:
1)Led Wall Washer with high power LED chip, high luminance, low energy cost, long life span
2)Driving circuit can endure high-temperature, avoiding short circuit, it has high reliability
3)High-brightness, good heat emission, nice colors can substitute the original lights
4)Long working life, soft light no hurt for eyesight.
5)Energy saving, Environment friendly
6)No UV or IR radiation
7)Integrated design with hosing and electric parts, legerity, beautiful and easy to install
Light Bridge,Bridge Lights,Ring Pathlight Solar,Bridge Lighting
Guangdong harmonglobal Lighting Industry Co.,Ltd , https://www.harmonglobal.com