Boron Carbide (B4C), generally known as black diamond, could be the 3rd toughest substance immediately after diamond and cubic boron nitride. It is actually an acceptable product for many high performance purposes due to its interesting blend of Houses. Its fantastic hardness makes it an acceptable abrasive powder for lapping, https://busbar-bending-cutting-pu26036.blog-eye.com/31860069/the-2-minute-rule-for-sodium-silicate