my understanding is that they build a boron carbide substrate and inject the gold into that, filling the space between the boron. They don't actually mix the two together. They both remain two distinct components.It's the addition of boron carbide to the gold which makes the difference. So my question is: is this boron carbide only able to be dissolved in gold or can it be added to steel? I've always wondered what would happen if you added sub micron diamonds to steel.