Application of boron carbide B4C powder
Boron Carbide is one of the three hardest materials known, it is not affected by hot hydrogen fluoride and nitric acid. Soluble in molten alkali, insoluble in water and acid.
Boron Carbide is one of the three hardest materials known, it is not affected by hot hydrogen fluoride and nitric acid. Soluble in molten alkali, insoluble in water and acid.
As an admixture, superplasticizer is added to concrete to reduce water consumption and increase the strength of concrete. At present, the high-performance water-reducing agents used in concrete engineering are mainly polycarboxylic acid superplastici
Superplasticizer used in concrete refers to the fact that after mixing, it can reduce the water demand of concrete under the condition of maintaining basically the same fluidity, thereby improving the strength and durability of concrete, or under the
Concrete water reducing agent is one of the technical ways to reduce the cement dosage, improve the utilization rate of industrial waste residue, and realize the durability and high performance of concrete.
How serious are fertility problems today? People don't want to give birth,can't afford it, and can't give birth that has become the "three mountains". The problem of childbirth is related to the people's livelihood. Whether a country can prosper or n
Copper is the earliest discovered chemical element. Its chemical symbol is Cu, atomic number is 29, and atomic weight is 63.546 U.
2021 is the year of accelerated development of energy storage. CATL and BYD, the two super-manufacturers of energy storage lithium batteries, will both achieve rapid growth in 2021. Especially in overseas markets, when energy and electricity prices a
Recently, I learned from the University of Science and Technology of China that the team of Professor Zhu Yanwu of the school cooperated with the Shanghai Institutes for Advanced Study of the Chinese Academy of Sciences, Changzhou Sixth Element Mater