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Weight Balance Violation During Hydration of YBa2Cu3O6+δ

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Abstract

New experimental evidence for the existence of a long-range interaction between hydrated superconductor YBa2Cu3O6+δ (YBCO) and surrounding bodies, which cannot be explained from the standpoint of electromagnetism, is presented. As an example of its manifestation, we have considered a remarkable decrease in the weight of a well-closed system, inside which YBCO samples are being saturated with water. The change in weight has been found proportional to the mass of the YBCO samples that proves the responsibility of this substance for the detected interaction. It is recorded that some hydrated samples can effectively influence the weight of others even being at a significant distance from them (up to 0.5 m). Previously, similar effects were recorded only when the samples were located close to each other. Given that all YBCO samples, which researchers usually deal with, are at least a little hydrated, we believe that the HTSC phenomenon is closely related to the interaction found in this work.

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Notes

  1. The oxygen composition of the resulting YBCO is supposed to be the same as in our previous work [6], where the identical method of material preparation was used and the oxygen composition was determined by iodometry.

  2. The effect of the crystalline hydrate powder was previously checked with a calibrated hygrometer “thermo-hygro sensor Oregon scientific THGR122NX” – the relative humidity in a sealed vessel where the salt was placed was 43%. The hygrometer was calibrated at the humidity of the properly prepared crystalline hydrates: MgCl26H2O (33%), K2CO31.5H2O (43%), Mg(NO3)26H2O (53%), and CH4NO3 (62%) at 25 C.

  3. Despite of this, in figures (see below) these reactors are depicted as empty for better contrast with the reactors containing samples.

  4. The experiments shown in Fig. 4 were carried out at rather large temperature fluctuations (±1 C). But judging by the weak dependence of the rate of hydration on temperature (see Fig. 3), these fluctuations should not have affected the course of processes in mini-reactors.

  5. Data in Figs. 5, 6 and 7 are consistent with the assumption that radiation does not destroy the effect of weight reduction, but only does not allow it to manifest itself. According to Sect. 4.2, this might be interpreted by the switching of the force lines involved in the interaction of YBCO with surrounding bodies to the horizontal direction.

  6. From this it automatically follows that the force interaction should have been maximal precisely at the final stage of the experiments.

  7. An assessment of L can be made according to the equation: \(\frac{0.9F_z}{L^2} = \frac{F_z}{{(L - 0.07)}^2}.\) With a higher-order power-law, the distance L will be greater.

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Acknowledgements

The study was performed with the use of equipment of the Ural-M Collective Use Center at the Institute of Metallurgy of the Russian Academy of Sciences.

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  1. Institute of Metallurgy of the Ural Branch, Russian Academy of Sciences, Ekaterinburg, Russia

    A. V. Fetisov

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Fetisov, A.V. Weight Balance Violation During Hydration of YBa2Cu3O6+δ. J Supercond Nov Magn 34, 2725–2732 (2021). https://doi.org/10.1007/s10948-021-05979-8

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