Rare earth is the general term for 17 rare earth elements, that is, 15 lanthanides + lanthanum and cerium. So, do you know that luminescence is one of the characteristics of rare earth elements? Some experts have shown that under the excitation of light, strontium (Tb3+) emits green light with a wavelength of 545 nm; and erbium (Eu3+) emits red light with a wavelength of 613 nm. Therefore, the rare earth will emit light is valid! However, rare earths are…
Tungsten News
It is reported that recently, China has successfully produced 99.999% rare earth modified alumina, which is 5N rare earth modified alumina/ultra-high purity rare earth modified alumina, which fills the gap in China’s production technology! To put it simply, that is, China has broken through the “bottleneck” of ultra-high purity rare earth modified alumina technology! This is a rare earth modified high-purity sapphire raw material independently researched and developed by Shanghai R&D team in China, and has been officially put into…
In recent years, China’s defense industry has undergone earth-shaking changes, rapid development in technology and technology, and has also been freed from financial constraints. Not only that, but also achieved remarkable achievements – China has established a defense industry system that can independently develop high-tech weapons platforms, and has basically achieved self-sufficiency. Among them, advanced stealth fighters (歼-20, 歼-31), aircraft carriers (002 domestic aircraft carriers under construction, third, fourth…), stealth drones (Pterosaur-2, etc.) and new Cutting-edge weapons such as a…
According to the China Nuclear Group news, after eight years of technical research, China has finally broken the long-term monopoly of foreign countries and broke through the core technology of nuclear grade zirconium (N36 zirconium alloy) preparation! This breakthrough means that China has successfully mastered the complete N36 zirconium alloy engineering preparation technology with independent intellectual property rights. So, what is the N36 zirconium alloy material used for? Is it important? Of course, it is important! Perhaps you also know…
In 2018, this is an unusual year. In this year, let’s not say anything else. In terms of navigation satellites, China has completed ten Beidou satellite launch missions! Moreover, not only did the intensive launch mission of the “Ten to Beidou” be completed, but the scientific and technological workers in China shortened the total process time by nearly 1/3 by optimizing the process. Of course, this unprecedented speed has a reason. According to experts, these three reasons ensure the speed…
Baotou rare earth nickel-hydrogen power battery went offline smoothly and was sent to the domestic market in batches! This means that China’s new energy vehicle, the new energy pure electric bus, has had a stronger “Chinese heart” since then. This “China Heart” is the first batch of high-performance capacitive Ni-MH power batteries made by Baotou. It is a pure “Chinese heart”! These pure “Chinese Hearts” belong to Baotou’s annual production of 200 million ampere-hour rare earth power battery projects. It…
As we all know, rare earths have the reputation of industrial MSG, industrial gold, and even the versatile soil that Japanese media call high-tech industry. Of course, this precious resource is not really “earth” or “soil”, but a general term for seventeen rare metals. Most of the countries in the world are buried underground or under the sea, which is more or less. According to the US Geological Survey’s “2018 World Minerals Summary” data, China’s rare earth resource reserves are…
According to the Chinese Academy of Sciences plasma news, China’s magnetically constrained nuclear fusion experimental device “artificial sun” has made a major breakthrough, laying an important technical foundation for the subsequent development and utilization of nuclear fusion clean energy. You may not be very familiar with nuclear energy. You are not very clear about what this breakthrough means. Next, let’s take a closer look at the knowledge of nuclear energy, fission energy and fusion energy, in order to better understand…
It is reported that the first China International Import Expo opened in Shanghai, China National Convention and Exhibition Center (Shanghai). Among them, the largest exhibit of the “volume” at this fair is a high-precision machine tool with a total weight of about 200 tons – Jinniu Longmen Milling Machine. It comes from one of the world’s largest manufacturers of high-precision heavy-duty machine tools, Germany’s WALDRICH-COBO Machine Tool Manufacturing Co., Ltd. The high-precision machine tool manufacturing company was founded in 1920…
From rocket engines to all kinds of maritime hair, have countries been smashed “card necks”? This is a big proposition and a small proposition. First of all, let’s talk about the Long March. As we all know, the Long March 9 carrier rocket is a new generation of heavy rockets being developed in China. It is a “sci-fi level” and will be used for deep space exploration, manned moon landing and fire, space infrastructure construction, etc. First flight between 2028…