Keresés

Keresési eredmények

• Surface Activation of High Impact Polystyrene Substrate Using Dynamic Atmospheric Pressure Plasma

  80-87

  Juhász Gergely

  Berczeli Miklós

  Weltsch Zoltán

  Megtekintések száma:

  159

  Over the last decade, the number of researches has increased in the field of bonding technologies. Researchers attempt to improve surface adhesion properties by surface treatments. Adhesive bonding is one of these bonding techniques, where it is important to see what surfaces will be bonded. One such surface property is wetting, which can be improved by several types of surface treatment. In recent years, atmospheric pressure plasmas have appeared, with which research is ongoing on surface treatments. In our research, we will deal with the effects of plasma surface treatment at atmospheric pressure and its measurement. In addition, we summarize the theoretical background of adhesion, surface tension and surface treatment with atmospheric pressure plasma. Our goal is to improve adhesion properties and thus the adhesion quality.

• Formation of Oxide Layers with Femtosecond Laser on Steel Surfaces for Color Marking

  174-178

  Juhász Gergely

  Berczeli Miklós

  Weltsch Zoltán

  Megtekintések száma:

  215

  With the appearance of ultrashort pulse lasers, the researchers have begun working on various laser marking technology. Atmospheric heating and ablation of a surface induce laser coloration of metal surfaces. However, their application is still problematic today in the industry. With the appearance of femtosecond pulse lasers, a new concept became available for color marking. This concept is based on the formation of laser-induced periodic surface structures (LIPSS) on metal surfaces. The purpose of this article is to summarize the literature of laser color marking with ultrashort pulse lasers.