It came into my mind to question why Rossi put his Hot cat alumina core inside a stainless steel tube.
If you remember, Rossi enclosed his alumina Hot-cat core with a stainless steel tube in the first third party test. In the second third party test at Lugano, Rossi removed the alumina core from the stainless steel shell. That stainless steel shell probably served as a blast shield to protect against a core blast as seen in the MFMP test. When a core blast as occurs as often happens in the Russian tests and also with MFMP, the hydrogen is immediately released from the core because the alumina shatters an the overheat reaction stops. However, is the rupturing core is enclosed in a metal shield which absorbs the shock of the blast by deforming, the metal not immediately released hydrogen to the surrounding air. This retention of hydrogen inside the metal shell may cause the LENR reaction once started to continue, progress, and grow larger over time. I conjecture, if an alumina core is enclosed in a metal tube to keep the hydrogen confined, a major high temperature meltdown will occur instead of being stopped by a explosive blast causing almost instantaneous hydrogen out gassing.

