There are a few ways that it might not be "graphene". First, it probably isn't monolayer, but rather variable layer numbers, so practically speaking... it's pr

There are a few ways that it might not be "graphene". First, it probably isn't monolayer, but rather variable layer numbers, so practically speaking... it's probably graphite. Second, there is likely to be a lot of defects. So you don't get the full strength that you would find with single crystal exfoliated or epitaxially grown graphene. Still, I would imagine that a method like this could be useful, particularly if you were building a colony off-world. You don't need high-quality graphene for making composites for construction.