http://en.wikipedia.org/wiki/Lanthanum_hexaboride
The principal use of lanthanum hexaboride is in hot cathodes<http://en.wikipedia.org/wiki/Hot_cathode>, either as a single crystal or as a coating deposited by physical vapor deposition <http://en.wikipedia.org/wiki/Physical_vapor_deposition>. Hexaborides, such as lanthanum hexaboride (LaB6) and cerium hexaboride<http://en.wikipedia.org/wiki/Cerium_hexaboride>(CeB 6), have low work functions <http://en.wikipedia.org/wiki/Work_function>, around 2.5 eV <http://en.wikipedia.org/wiki/Electronvolt>. The voltage produce by heat only is low. Is that true? On Sun, Dec 15, 2013 at 6:40 PM, Eric Walker <eric.wal...@gmail.com> wrote: > On Sun, Dec 15, 2013 at 3:36 PM, Axil Axil <janap...@gmail.com> wrote: > > How do you explain the Rossi reaction where only a heat spike is used to >> initiate the reaction? >> > > My best guess at this point: he's using a thermionic emitter such as > lanthanum hexaboride, which will emit sparks at higher temperatures (this > idea was inspired by something you said a few months ago). > > Eric > >
