@Dewey,
I'm going to guess that the 12 inch wafers are fuel sandwiches like figure 3 of Rossi's patent US 9115913 B1: "Fig. 3 is a cross section of the wafer for use in the heat source of Fig 2". His patent has a detailed description of the wafer and you can read about it on the USPTO website. No idea if Axil knows anything more about it other than what he has read. He's creative with a lot of ideas (you can see his original ideas and hypotheses once every few weeks on ECW). I would suggest pursuing a less ad hominem discourse.