Condensed Matter

2007 Submissions

[3] viXra:2007.0211 [pdf] submitted on 2020-07-27 09:10:28

The Cooper Pair Potential in the Thermal Bath

Authors: Miroslav Pardy
Comments: 13 Pages. the original article

The Coulomb and Yukawa potentials of particles are derived from the Schwinger field theory at zero and the finite temperature. At the same time the correction to the Coulomb potential is determined for the two charges interacting in the photon black-body sea by the photon exchange mechanism. The running coupling constant is determined in dependence on the mean free path of photons in the photon sea. The relation to the Cooper pairs and phonon-phonon interaction at finite temperature is discussed.
Category: Condensed Matter

[2] viXra:2007.0207 [pdf] submitted on 2020-07-26 11:50:56

Liquid Surface Tension. Meniscus of Liquid at a Vessel Wall

Authors: Oleg G. Verin
Comments: 19 Pages.

This article is a continuation of the previous study [1] devoted to the physical phenomena, connected with a surface tension of liquid. The meniscus of liquid at a vessel wall is one of the most known effects of such nature. As well as the problem of the form of hanging and sitting drops of liquid, the analysis of meniscus form traditionally is based on the solution of Laplace equation [2]. In the given article the problem of meniscus is examined from the point of view of mechanical balance of a liquid under surface tension, gravity and wettability of a wall surface. The obtained solutions are convenient for computer calculations, and at the same time have necessary universality. More and more exact and detailed knowledge about, apparently, well-known physical phenomena are indispensable for the development of modern technologies and technical equipment. In the full measure it concerns the study of liquid properties caused by surface tension [3].
Category: Condensed Matter

[1] viXra:2007.0151 [pdf] submitted on 2020-07-19 10:59:45

Nano Explosions

Authors: Sascha Vongehr
Comments: 14 Pages. 7 figures, 42 refs

At the nano-scale, surface phenomena such as attractive VdW forces strongly dominate; explosions may well be thought impossible. We confirm nano explosions that are important for a fractal (hierarchical, scale invariant) pore structure, greatly increasing pore access. Analyzing only microscope images, image analysis and statistical error reduction algorithms alone provide conclusive evidence of explosively expelled material. The results reconfirm that computer image recognition and statistical analysis are a widely applicable and inexpensive technique for determining parameters which are otherwise unavailable, such as the densities of single nano shapes. The explosion mechanism explains optimum calcination temperatures for cobalt-hydroxide and why slow heating optimizes porosity. Slow heating increases the accessible surface area by 60% with this supercapacitor material.
Category: Condensed Matter