SUCCESS DUE TO SMALL GRAIN Pd
By Scott R. & Talcott A. Chubb
SUCCESS DUE TO SMALL GRAIN Pd
Scott R. & Talcott A. Chubb (Oakton Int. Corp. Arlington, VA), "Small Crystals Aid Cold Fusion," Am. Phys. Soc. Bull., 20 March 1997, 14:42 session "O"18 2.
AUTHORS' ABSTRACT
The 1996 world meeting on cold fusion in Hokkaido, Japan (ICCF-6) provided strong evidence that the nuclear product of radiationless cold fusion in a lattice is 4He. Arata and Zhang at Osaka Univ. observed 4He in thermal desorption studies of deuterided Pd powder that had produced 5 kWh/g excess heat; non-deuterated powder showed no 4He. Gozzi et al. at the Univ. of Rome observed 4He correlating with excess heat power over a thousand hour time period in the gas flow from an open-cell D2O electrolysis cell, using a bundle of 150 0.25-mm Pd wires as the cathode. Arata and Zhang used a "double structure" cathode consisting of a Pd-metal bottle, evacuated and filled with Pd black (0.4 micron) powder. They have recorded excess heat from 6 out of 6 cathodes. We attribute the cold fusion successes to the use of small Pd grains. Deuterons coherently occupying ordered regions in a metal matrix are predicted to produce heat at high power density with decreasing crystal size.
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Nov. 14, 1997.