Mechanical and electrical properties of the solid sapropel

Abstract

In this paper are explored the mechanical (ultimate compression strength, ultimate strain, Young’s modulus, hardness) and the electrical (relative permittivity, specific electrical resistance, quality factor, their dependence on the electric field frequency in the range till 1MHz) properties of the solid sapropel. For the researches are used samples from the solid, monolith sapropel (obtained in the drying process) and samples from the sapropel powder that are pressed with a different force; before the measurements, a part of these samples were heated. There is explored the dependence of the relative permittivity on temperature. Are explored the methods for the forming of the products from the solid sapropel powder.

Effect of Heat Treatment on Electrical and Mechanical Properties of the Solid Sapropel

“…Figure 3 demonstrates frequency dependences of the specific electrical resistance of the sapropel samples measured at room temperature and gives one more confirmation of this universal relaxation power law: one can see few linear parts in this doublelogarithmic plot. Similar result was published earlier in [6]. It should be emphasized that after the heat treatment at t=100 0 C specific electrical resistance of the sapropel sample at low frequencies decreases (see curves 1 and 2 in Fig.…”

“…6 demonstrates much lower conductivity value and much weaker maximum at TT0 as compared with characteristic features of curve 1). Analogous phenomena (when sapropel electrical characteristics "remember" sample prehistory) were previously observed in [6] and were treated as "memory" effect.…”

“…Mechanical properties of solid sapropel (ultimate compression strength, ultimate strain, Young's modulus) were explored in work [6]. In this paper hardness from Shore D (after heat treatment) dependent on heat treatment temperature was studied -see results in Fig.…”

“…Therefore, complex research of mechanical, physical, chemical and biological properties of sapropel is the necessary purpose. Elaboration foreruns in research of mechanical and electrical properties of the solid sapropel were made in work [6], thermal properties are researched in [20]; biological [23], [26], chemical [11], [21], [22], [23], and magnetic [19] properties were also investigated. In order to change properties of material, it is modified.…”