hydrogen absorbtion in metals

[dozey]

I am aware various metals are able to absorb a quantity of hydrogen,

either ionic or molecular hydrogen... I'm not sure. Perhaps someone can enlighten me regarding the constituents / environment required for this to occur.

 

I am interested the hypothetical stiutation wherein hydrogen becomes trapped in the metal's crystal structure.. for instance, cubic face-centered in Palladium.

 

Assuming Palladium is heated to the extent that the structure expands? and absorbed hydrogen is able to fill the gaps, what happens if the Palladium cools / shrinks?

 

I assume it is possible for hydrogen to become trapped in such a structure as weakness in metals / metal alloys have been attributed to gas content.

 

If a particularly large amount of hydrogen is absorbed and is subject to the metal / structure shrinking around it, is there the possibilty for nuclear events, or does it even come close?

 

(this does not necessarily refer to Palladium, the subject metal could be Tungsten or any other that is capable of absorbing hydrogen / other gases)

 

 

Thanks in advance for any feedback!

[bob000555]

If a particularly large amount of hydrogen is absorbed and is subject to the metal / structure shrinking around it, is there the possibilty for nuclear events, or does it even come close?

Its theoreticaly posable.

http://en.wikipedia.org/wiki/Cold_fusion#Pons_and_Fleischmann.27s_experiment

[dozey]

any other input?