Barbat low inertial mass generator

[tak22]

duplicate

[tak22]

Hans,

I think the key word here is "or", as in  .........photoconductor or semiconductor or superconductor ....... which gives us 3 possible variations for an "energy-magnifying coil".

Cupric oxide CuO is a semiconductor (at least that's what my searching has found) so it's safe to proceed!

There are also many references linking CuO to HTSC superconductor compounds.

This is still unexplored territory, but at least a map of some worth is in front of us.

tak

[hansvonlieven]

Hans,

I think the key word here is "or", as in  .........photoconductor or semiconductor or superconductor ....... which gives us 3 possible variations for an "energy-magnifying coil".

Cupric oxide CuO is a semiconductor (at least that's what my searching has found) so it's safe to proceed!

There are also many references linking CuO to HTSC superconductor compounds.

This is still unexplored territory, but at least a map of some worth is in front of us.

tak

G'day Tak.

This is where the confusion arises. I do not know much about the role of cupric oxide as a superconductor and at what temperatures, but one thing I think I know, is that the statement: CuO is a dull-black, polycrystalline, semiconducting compound that develops in situ on copper and bronze wire in the course of annealing the wire in the presence of air. is wrong.

Please correct me on this if I am mistaken.

I have always felt that every time someone proves one wrong on some point, an opportunity for learning presents itself. This I do not mind at all. In the meantime though I stick with what I think is correct.

Hans von Lieven

[Bruce_TPU]

Hey guys,

I found this answer.  Medical grade hydrogen peroxide, if you do not want to make your own.

Also google CuO description and you will see that there is much more to CuO and it's properties than you would think


From Yahoo answers:
I suggest you a liquid medium, an aqueous solution.
In a glass-beaker, you put diluted Sodium Hydroxide (e.g. Alkaline and Harmful Liquid) where will aid AMMONIUM HYDROXIDE's solution (e.g. Take care of your skin and eyes! Harmful liquid! Dont' breath its vapours!) hence HYDROGEN PEROXIDE (e.g. medical concentration may satisfy you).
Well, you dipp several Copper-bodies and you wait several days tightening the beaker against its fumes.
The liquid will tarnish black-bluish

Cu?(s) + H2O2(aq) + 4 NH4OH(aq) --->
---> [Cu(NH3)4](OH)2(aq) + 4 H2O(aq)

[Cu(NH3)4](OH)2(aq) + 3 H2O(aq) --->
---> CuO(s) + 4 NH4OH(aq)

OR

How can CuO be synthesized from CuSO4 and KOH?

How do you get a stable pure form of Copper (II) Oxide when you react Copper (II) Sulfate with Potassium Hydroxide?
A. Y. Wong

    You'll form a blue, bulky precipitate of Cu(OH)2 first, according to

    CuSO4(aq) + 2 KOH(aq) right arrow K2SO4(aq) + Cu(OH)2(s)
    If you add too much KOH, the precipitate will dissolve (and you get an intensely blue solution of complex copper ions). Add it a little at a time until you see no more precipitate form.

    Filter off the copper(II) hydroxide, and wash it to remove the soluble potassium sulfate. Pour the clean precipitate into an evaporating dish and dry it very gently:

    Cu(OH)2(s) CuO(s) + H2O(g)
    You should see black powder form. That's the copper(II) oxide. If you heat it too much, it will decompose further into copper(I) oxide and oxygen.

    Author: Fred Senese senese@antoine.frostburg.edu

[hansvonlieven]

G'day all,

Correction

Sorry fellows. Further research indicates that cupric oxide is indeed a p-type semiconductor. My earlier statement is therefore wrong. Thanks Tak for pointing me in the right direction.

It does beg one question though and that is why cuprous oxide is used in photocells instead of cupric oxide.

The cuprous oxide layer is difficult to produce, an even film is impossible to obtain and the layer is very thin and delicate.

On the other hand cupric oxide is easy to produce chemically, an even film can be obtained with ease and the layer is far more robust. From what they are telling us this is far superior. So why then do they insist on using cuprous oxide.

Questions I have so far no answers for. I shall keep you posted on further findings.

Hans von Lieven