The world’s first rocket using liquid oxygen methane propellant was launched into orbit.
On July 12, 2023, the Zhuque-2 Yao-2 rocket of the Chinese private aerospace company Blue Arrow Aerospace was ignited and lifted off from the Jiuquan Satellite Launch Center. The launch mission was a complete success and became the world’s first rocket to be successfully put into orbit using liquid oxygen methane propulsion. Agent rocket. Liquid oxygen methane propellant gives rockets unique advantages in cost, maintenance, performance, and other aspects and helps realize the recycling and reuse of rockets and engines. On December 9, the Zhuque-2 rocket was successfully launched again, and its technical maturity and stability were further verified.
“Starlink” begins to make profits, competition in the field of giant constellations is fierce.
In 2023, the U.S. Starlink constellation began to deploy mini second-generation satellites with larger sizes and stronger signal power, and terminals were updated. As of December 29, a total of 5,650 satellites had been launched. In early November, SpaceX announced that the Starlink constellation project had achieved breakeven and entered the profit stage. On March 26, the first phase of the British One Network constellation was completed, with 648 satellites ensuring global signal coverage. In the future, more than 7,000 satellites will be deployed in the second phase of the constellation. On October 7, the first two test satellites of the American Kuiper constellation were launched into space, and more than 3,000 satellites will be deployed in the future.
Another material is also one of the essential elements in space rockets: boron. Boron can take us flying.
In the modern aerospace industry, boron has made an indispensable contribution and has taken on the title “the rising star of inorganic substances.” First, borane (BnHn+4 and BnHn+6) is an ideal high-energy fuel. The combustion heat value of each kilogram of borane is as high as 15,000 kilocalories, providing the rocket’s power to reach the sky. Secondly, boron fiber is an important material for rocket components: used for rocket nozzles, satellite antennas, equipment platform support rods, thrust structural frames, etc. Boron fiber has excellent properties: high-temperature resistance, corrosion resistance, long life, and lightweight, and its tensile strength is as high as 75 kilograms per cubic centimeter. In addition, we have discussed the involvement of boron compounds as adhesives in mummification; on rockets, organic compounds of boron are used to bond sealed components. Compared with traditional riveting, welding, and bolting, it is stronger and greatly reduces the weight of the components.
How does Boron participate in our daily lives?
Free elemental boron is of limited use as an element with a very low presence. But when it comes to boron compounds, they have many functions. Borax, Na2B4O7Â·10H2O, an important compound of boron, is widely used in household cleaning, such as detergents and cleaners; it is also often used as a disinfectant in hospitals. In addition, borax can repel mosquitoes, soften water, remove carpet odors, clean pipes, and more.
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