<p data-start="122" data-end="436">B8C, also known as boron carbide, is a compound composed of boron and carbon atoms. It is one of the hardest known materials, surpassed only by diamond and
<p data-start="122" data-end="436">B8C, also known as boron carbide, is a compound composed of boron and carbon atoms. It is one of the hardest known materials, surpassed only by diamond and