Publication detail

Electromagnetic and Acoustic Emission in Materials Research

P. Koktavy, B. Koktavy

Original Title

Electromagnetic and Acoustic Emission in Materials Research

English Title

Electromagnetic and Acoustic Emission in Materials Research

Type

conference paper

Language

en

Original Abstract

The goal of the study is to refine the knowledge of the origin of the acoustic and electromagnetic emission accompanying the crack generation and the dislocation displacement. Inter-atomic bonds are disturbed and energy is released in the course of these processes. The released energy is manifested by mechanical wave motion. Moreover, in consequence of the chemical band disturbance, electric charges are released, thus giving rise to electric, magnetic and electromagnetic fields. Whereas the quasi-stationary electric field has already been describe in a number of papers, the existence of a quasi-stationary magnetic field and its generation in consequence of the crack formation has not yet been sufficiently verified by experiments. The fundamental problem consists in designing an apparatus, whose shielding is sufficient. It is essential to suppress any electromagnetic signals emitted from the measuring apparatus to such a degree, that the respective electromagnetic noise is lower in magnitude than the signals arising from the charge carrier motion of on the crack faces.

English abstract

The goal of the study is to refine the knowledge of the origin of the acoustic and electromagnetic emission accompanying the crack generation and the dislocation displacement. Inter-atomic bonds are disturbed and energy is released in the course of these processes. The released energy is manifested by mechanical wave motion. Moreover, in consequence of the chemical band disturbance, electric charges are released, thus giving rise to electric, magnetic and electromagnetic fields. Whereas the quasi-stationary electric field has already been describe in a number of papers, the existence of a quasi-stationary magnetic field and its generation in consequence of the crack formation has not yet been sufficiently verified by experiments. The fundamental problem consists in designing an apparatus, whose shielding is sufficient. It is essential to suppress any electromagnetic signals emitted from the measuring apparatus to such a degree, that the respective electromagnetic noise is lower in magnitude than the signals arising from the charge carrier motion of on the crack faces.

Keywords

electromagnetic emission, acoustic emission, material research

RIV year

2005

Released

01.01.2005

Publisher

České vysoké učení v Praze

Location

Praha

ISBN

80-01-03290-6

Book

Proocedings of International Workshop Physical and Material Engineering 2005

Pages from

69

Pages to

72

Pages count

4

BibTex


@inproceedings{BUT15281,
  author="Pavel {Koktavý} and Bohumil {Koktavý}",
  title="Electromagnetic and Acoustic Emission in Materials Research",
  annote="The goal of the study is to refine the knowledge of the origin of the acoustic and electromagnetic emission accompanying the crack generation and the dislocation displacement. Inter-atomic bonds are disturbed and energy is released in the course of these processes. The released energy is manifested by mechanical wave motion. Moreover, in consequence of the chemical band disturbance, electric charges are released, thus giving rise to electric, magnetic and electromagnetic fields. Whereas the quasi-stationary electric field has already been describe in a number of papers, the existence of a quasi-stationary magnetic field and its generation in consequence of the crack formation has not yet been sufficiently verified by experiments. The fundamental problem consists in designing an apparatus, whose shielding is sufficient. It is essential to suppress any electromagnetic signals emitted from the measuring apparatus to such a degree, that the respective electromagnetic noise is lower in magnitude than the signals arising from the charge carrier motion of on the crack faces.",
  address="České vysoké učení v Praze",
  booktitle="Proocedings of International Workshop Physical and Material Engineering 2005",
  chapter="15281",
  institution="České vysoké učení v Praze",
  year="2005",
  month="january",
  pages="69",
  publisher="České vysoké učení v Praze",
  type="conference paper"
}