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- Nano Coating

Beaucoup de documents sont disponibles partagés par l’équipe Francophone 


How to make a good a nano coating of copper
This is my understanding of how to make a good nano coating of copper: 1. Use oxygen free electric copper if possible. 2. Have the surface of the copper shiny. 3. Clean the surface of the copper to be free of oxidation, oil, fingerprints etc, 4. Chose a polypropylene plastic box with lid for the coating process. 5. Place on the bottom of the dry container caustic soda (NaOH) of higher purity, mixed with some KOH or KCl salt. The presence of potassium (K) is important, as potassium contains 120 ppm (0.012%) of K40 isotope., which is subject to beta decay, and it helps to trigger the process. NOTE: I used to get good results with 40 grams of NaOH and 12-15 grams of KOH per liter of boiling water. 6. Place a zinc coated iron mesh (chicken wire) over the caustic, with purpose to create a distance between the bottom of the container and the pieces, which are to be nano-coated. 7. Position the copper pieces onto the chicken mesh. Alternatively, you may hang them on any kind of suitable support, which keep them separated (not touching each other and not touching the bottom of the container). 8. As a basic rule, do not stack the pieces of copper one over the other, and do not tamper them from here on. You have to minimize the contact with them (for example by holding them by the edges, with extreme care to not damage or crush the created nano-layers. 9. Prepare enough boiling water to be able to cover in an instant all the copper pieces. 10. Put the lid on the container, then move it slightly in order to crack-open just a corner of it, through which opening you will be able to pour the boiling water in. Avoid that the vapors to reach your face and avoid breathing in the vapors. Use face and eye protection, gloves, protective equipment as described in the MSDS. 11. Pour the boiling water into the container and cover it with the lid immediately. You can place a weight over the lid of necessary in order to close it well. Leave it untouched for at least 48 hours, and better for one week. 12. After 2-7 days passed, remove the lid and drain the liquid caustic from the container. Do not move the copper pieces, do not touch the, just remove the caustic liquid, You can use a flexible pipe for siphoning (similarly to how fish-tanks are emptied). 13. If possible, at this stage do not move the copper plates or wires into another container. Keep them in the same plastic container, in which the immersion in hot caustic was done. During the hot caustic process, the walls of that plastic container got nano-coated too, and inside there is a plasmatic environment. The nano.coated surface of the plastic container will better keep inside the created fields. 14. Leave a little liquid (about 1-3 ml) in the container in order to provide moist. 15. Immediately after the removal of the liquid caustic, apply the probes of a millivoltmeter to two extremities of the copper pieces for about 5- 10 seconds, with purpose to polarize the surface and dictate a direction of the formation of the nano-structures. Optionally, you can repeat this 4-5 times a day, depending on purpose. In case of nano-coating wires or coils, apply the probes on the ends of the wires. In case of plates, it is preferable to apply on diagonally opposed corners of the plates. 16. Place back the lid on the top of the container, and leave it for minimum 2 weeks, and preferably for 2 months for the nano-layers to grow. 17. Optionally, you may do a second coating without immersion, but with steaming over caustic steam, followed again by polarizing and conditioning in the same way as after the immersion process. 18. When you decide to end the process, do not open immediately the containers. First open a little crack for allow the moisture to evaporate gradually during a couple of days. The transition from moist environment to room environment has to be done gradually. 19. Once the process done, rinse the nano-coated copper pieces with distilled water in order to remove the caustic from their surface. 20. Before use, keep the nano coated pieces in closed boxes, with a little moist inside.

Nos débuts :

Aspect arc-en-ciel, au début du nano-coating.

Attention de ne pas les faire rougir avec chalumeau (plus d'actualité, seulement en cas d'urgence)

Sébastien Liotta
Suite au souhait de Myriam, voici donc le nanocoating au four sur la fonction barbecue, grill et pyrolyse.
Cette méthode au four électrique, n’ est valable que pour les fours ayant une fonction grill, barbecue ou pyrolyse, car c’est la résistance en haut du four qui agit en rougissant !!!!!!

Déjà, le four doit être propre, nettoyé. Ensuite il faut préchauffer le four vide sur la fonction grill ou barbecue pendant 20 minutes. Pour le nanocotage utilisez le lèche frite à l’ envers, de façon à se rapprocher le plus près possible de la résistance au haut du four.
Exemple : Après le préchauffage, posez les bobines sur le lèche frite à l’ envers, suivant le four et l’épaisseur des bobines vous n’accèderez pas au dernier cran ou étage en haut du four, donc descendez d’un cran ou d’un étage plus bas. Placez votre lèche frite avec les bobines et réglez le temps de chauffe à 1heure 20 minutes, après ce temps, sortez le lèche frite avec les bobines sans éteindre le four et laissez refroidir les bobines pendant 20 minutes et renfournez le lèche frite avec les bobines et laissez chauffer à nouveau pendant 1heure 20 minutes, après cela éteignez votre four et laissez refroidir naturellement jusqu’à que votre four soit froid, voilà c’est fait.
Pour le nanocoating de fil de cuivre ou de plaque de cuivre, c’est à vous de variez le temps de chauffe suivant la quantité de fil de cuivre ou de plaques, personnellement je préchauffe 15 minutes puis je place mon lèche frite au plus près de la résistance et je laisse chauffer 35 minutes, je sors mon lèche frite sans éteindre le four , je laisse refroidir 15 minutes, renfournez et laissez chauffer 35 minutes, laissez refroidir naturellement jusqu’ à que le four soit froid.
Voilà, j’ espère que j’ ai été assez clair, sinon vous pouvez toujours poser des questions…