Us President Joe Biden will start a trip to the Middle East. Biden is scheduled to visit Israel, the West Bank and Saudi Arabia from July 13 to 16.Analysts believe that Biden's trip to the Middle East has three considerations. First of all, efforts s…
Boron carbide (B4C), also known as black diamond, is gray-black and is a very hard man-made material.…
Boron carbide B4C powder has the characteristics of high melting point, high hardness, high modulus, low density), good wear resistance, strong acid and alkali resistance, good neutron absorption capacity, low expansion coefficient, thermoelectric pr…
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.…