Studies On The Chaotic Dynamics Characteristics And Mechanism Of Solid Quasi-fluid State

An unknown natural nonlinear oscillation phenomenon named 'quasi-fluid state'is introduced in this paper. This phenomenon which is similar to liquid is validated under normal temperature and pressure on the surface of pure metal, alloy, mylonitic quartzite, gabbros et al. using metallographic microscope, TEM, SEM, AFM and X-ray diffractometer based on preceding researchers. The phenomenon reveals a new matter existence state in non-extreme arduous conditions, besides the well-known states, gas, liquid, solid and liquid crystal. The ubiquity is one of its most important characteristics. When the external condition reaches the critical value, the phenomenon will appear in solids. In macroscopic scale, the dynamical motion can be observed and some performance changes can be measured in quasi-fluid state cell. Under high power microscope, the lattice structure changes can be observed, the X-ray diffraction spectral lines exhibit fine fluctuation. Comparing the small-scale results with the great ones, the irregularity and randomicity appear in local, and the self-comparability is showed as a whole, i.e. 'quasi-fluid state'presents a typical fractal character. The stress as an external field which can provide energy, can induce the oscillation of the 'quasi-fluid state'cell. 'Quasi-fluid state'is a typical nonlinear dynamical system. Since the complexity of the motion and the mechanism is still unknown, the research methods are mostly phenomenological theory. In this paper, according to the experimental data, the chaotic dynamics of the quasi-fluid cell oscillation time series in solid is analyzed. The dynamical system phase space is reconstructed; the system parameters are calculated, such as fractal dimensions, Lyapunov exponents, Kolmogorov entropy and Hurst exponent. The results proved that the quasi-fluid is a very complex chaotic state, having the positive largest Lyapunov exponent. Due to the quasi-fluid cell's activity and high energy, the oscillation of CuZnAl alloy can bring up the nanotube. It is an obvious process from chaotic into order. The NLAR model of the time series is constructed. The model has upper predicted precision within 10 percent. The quasi-fluid cell oscillation time series in solid is a natural, non-iteration of equations time series. It has profound connotative meaning of materials physics.