| dc.description.abstract | Special requirements are imposed on light-absorbing coatings on products made of aluminum and titanium alloys: ensuring a given spectral reflection coefficient and brightness coefficient; ensuring mechanical strength, hardness and resistance to environmental influences, high adhesion of the coating to the base. In some cases, the coating also requires high resistance to ultraviolet and ionizing radiation, low pressure. The existing methods for obtaining light-absorbing coatings based on chemical methods, anodic oxidation, electrochemical deposition, vacuum plasma treatment, microarc oxidation have a number of disadvantages. The solution to the problem of obtaining high-quality light-absorbing layers with a low reflection coefficient is to improve the characteristics of the technological pulses of the microarc oxidation process and to create fundamentally new processing schemes using electrolyte flows. Therefore, to solve the problem of obtaining high-quality light-absorbing coatings, including on internal surfaces, it is proposed to perform the process of microarc oxidation with controlled anodic and cathodic pulses with a duration of 3–10 ms using a special electrode-hydraulic system. | ru |
