All Stories

  1. The Effect of Initial Microstructure and Hardenability on Diode Laser Surface Hardening of Medium-Carbon Steels

    Article • Materials, March 2026, MDPI AG

    Emil Yankov

  2. Study of Surface Integrity Evolution During Laser Hardening of 42CrMo4 Steel Using a 4 kW Diode Laser

    Article • Materials, February 2026, MDPI AG

    Emil Yankov

  3. Influence of Laser Processing Parameters on Surface Roughness and Color Formation in the Marked Zone

    Article • Materials, November 2025, MDPI AG

    Emil Yankov

  4. The Influence of Technological Parameters on the Contrast of Copper Surfaces in the Laser Marking Process

    Article • Materials, August 2025, MDPI AG

    Emil Yankov

  5. LASER SURFACE TRANSFORMATION HARDENING WITH HIGH-POWER DIODE LASERS

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2025, Riga Technical University

    Emil Yankov

  6. EXPERIMENTAL STUDY OF THE MECHANICAL PROPERTIES OF COMPOSITE MATERIALS FROM RUBBER GRINDS FROM END-OF-LIFE TIRES

    Article • Journal of Theoretical and Applied Mechanics, April 2025, Institute of Mechanics, Bulgarian Academy of Sciences

    Emil Yankov

  7. Investigation of the Contrast Changing of Copper Surfaces in the Laser Marking Process

    Article • September 2024, Springer Science + Business Media

    Emil Yankov

  8. INFLUENCE OF TECHNOLOGICAL PARAMETERS ON LASER MARKING PROCESS OF COPPER SURFACES

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2024, Riga Technical University

    Emil Yankov

  9. INVESTIGATION FIBER LASER EFFECTS ON TITANIUM GR2: COLOR MARKING AND SURFACE ROUGHNESS

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2024, Riga Technical University

    Emil Yankov

  10. INVESTIGATION OF LASER TEXTURING ON THE SURFACE OF ANODIZED ALUMINIUM

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2024, Riga Technical University

    Emil Yankov

  11. INVESTIGATION OF THE EFFECT OF LASER POWER, SPEED AND FREQUENCY ON SURFACE ROUGHNESS AND COLOR MARKING ON AISI 304

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2024, Riga Technical University

    Emil Yankov

  12. INVESTIGATION OF THE OPTIMIZATION PROCESS OF LASER SURFACE MARKING ON POLYAMIDE SAMPLES

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2024, Riga Technical University

    Emil Yankov

  13. METHODOLOGY AND MODEL FOR THE STUDY OF RELATIVE ACCURACY DEVIATION IN LASER CUTTING OF C 235 STEEL

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2024, Riga Technical University

    Emil Yankov

  14. MODELING THE HARDENING OF CARBON STEELS AFTER QUENCHING AND TEMPERING

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2024, Riga Technical University

    Emil Yankov

  15. MODELING THE INFLUENCE OF GRAIN MORPHOLOGY ON THE LASER ENGRAVING PROCESSES

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2024, Riga Technical University

    Emil Yankov

  16. MULTI-CRITERIA RESEARCH OF GEOMETRIC, MECHANICAL, ENERGETIC ANDTEMPORAL INDICATORS DEPENDING ON LASER HARDENING PARAMETERS

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2024, Riga Technical University

    Emil Yankov

  17. OBTAINING A PROMISING LASER INDUCED SURFACE NANOSTRUCTURE OF TITANIUM ALLOY FOR BIOCOMPATIBILITY

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2024, Riga Technical University

    Emil Yankov

  18. THE IMPACT OF CO2 LASER POWER AND SCANNING SPEED ON VARIOUS WOOD AND THERMOWOOD SAMPLES

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2024, Riga Technical University

    Emil Yankov

  19. Modification of Aluminum 1050 and 2219 Alloys Using CuBr Nanosecond Laser for Hydrophobic and Hydrophilic Properties

    Article • December 2023, MDPI AG

    Emil Yankov

  20. Investigation of the Change in Roughness and Microhardness during Laser Surface Texturing of Copper Samples by Changing the Process Parameters

    Article • Coatings, November 2023, MDPI AG

    Emil Yankov

  21. ANALYSING THE INFLUENCE OF TECHNOLOGICAL PARAMETERS ON THE PROCESS OF LASER MARKING OF SURFACE OF ANODISED ALUMINIUM SAMPLES

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2023, Riga Technical University

    Emil Yankov

  22. COLOR MARKING OF STAINLESS STEEL AND TITANIUM WITH THE LASER OXIDATION METHOD

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2023, Riga Technical University

    Emil Yankov

  23. INFLUENCE OF BASIC PARAMETERS OF THE LASER MARKING PROCESS ON STAINLESS STEEL SAMPLES

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2023, Riga Technical University

    Emil Yankov

  24. INVESTIGATING THE CONTRAST OF SURFACE MARKING ON DIFFERENT COLOR CONNECTORS FOR TELECOMMUNICATIONS NEEDS

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2023, Riga Technical University

    Emil Yankov

  25. INVESTIGATING THE IMPACT OF LASER POWER AND SCAN SPEED ON ENGRAVING ASPEN THERMOWOOD

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2023, Riga Technical University

    Emil Yankov

  26. INVESTIGATION OF LASER MARKING AND TEXTURING OF TITANIUM GR 2 WITH FIBER LASER

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2023, Riga Technical University

    Emil Yankov

  27. INVESTIGATION OF SURFACE ROUGHNESS OF CARBON STEEL MACHINED PARTS AFTER NANOSECOND FIBER LASER MARKING

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2023, Riga Technical University

    Emil Yankov

  28. INVESTIGATION OF THE INFLUENCE OF TECHNOLOGICAL PARAMETERS OF LASER MARKING ON THE DEGREE OF CONTRAST

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2023, Riga Technical University

    Emil Yankov

  29. RESEARCHING THE PROCESS OF LASER STRUCTURING OF THE SURFACE OF ALUMINUM

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2023, Riga Technical University

    Emil Yankov

  30. STUDY OF TECHNOLOGICAL CHAINS FOR RAPID PROTOTYPING OF ORTHODONTIC DENTAL PRODUCTS

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2023, Riga Technical University

    Emil Yankov

  31. Modification of the roughness of 304 stainless steel by laser surface texturing (LST)

    Article • Laser Physics, March 2023, Institute of Physics Publishing

    Emil Yankov

  32. Effect of Laser Marking Speed, Power and Pitch on Hardness and Roughness of Aisi 304l

    Article • January 2023, Elsevier

    Emil Yankov

  33. Investigation of Surface Structure in the Laser Marking Process as a Function of Speed and Raster Step

    Article • January 2023, Elsevier

    Emil Yankov

  34. Investigation of the Influence of Some Parameters on the Process of Color Laser Marking

    Article • January 2023, Elsevier

    Emil Yankov

  35. Investigation of the Influence of Some Parameters on the Process of Color Laser Marking

    Article • January 2023, Elsevier

    Emil Yankov

  36. Analysis and Optimization of the Properties of High-Strength Austenitic Steels by Approximation of a Primary Database

    Article • Materials Science Forum, August 2022, Trans Tech Publications

    Emil Yankov

  37. A critical overview of the normative, regulatory and international standard requirements for healthy and safe public facilities

    Article • June 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Emil Yankov

  38. Determination of the optimal mode of laser surface marking of aluminium composite panels with CO2 laser

    Article • Tribology and Materials, January 2022, University Library in Kragujevac

    Emil Yankov

  39. Investigation of the penetration of the counter-body in the nitride zone of steels and analysis of concomitant characteristics

    Article • Tribology and Materials, January 2022, University Library in Kragujevac

    Emil Yankov

  40. Analysis of Multiple Indicators of Ion Nitrided Layers of BH11 Steel

    Article • Key Engineering Materials, October 2021, Trans Tech Publications

    Emil Yankov

  41. Investigation of the laser effect of micromechanical properties of stainless steel AISI 304 during the marking process

    Article • September 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Emil Yankov

  42. Surface Analysis Study of Laser Marking Process of Stainless Steel X5CrNi18-10

    Article • September 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Emil Yankov

  43. Bluetooth-controlled Programmable Power Supply for Experimental Studies in Hazardous Environments

    Article • September 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Emil Yankov

  44. LASER ABLATION OF PAINT COATINGS IN INDUSTRY

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2021, Riga Technical University

    Emil Yankov

  45. ON THE POSSIBILITY OF MARKING EGGS WITH A CO2 LASER

    Article • Environment Technology Resources Proceedings of the International Scientific and Practical Conference, June 2021, Riga Technical University

    Emil Yankov

  46. RESEARCH OF POSSIBILITIES OF LASER POLISHING OF THE SURFACE OF ALUMINUM

    Article • HUMAN ENVIRONMENT TECHNOLOGIES Proceedings of the Students International Scientific and Practical Conference, April 2021, Riga Technical University

    Emil Yankov

  47. Justification of the need to implement intelligent warehouse systems in fish processing

    Article • SHS Web of Conferences, January 2021, EDP Sciences

    Emil Yankov

  48. Composition, structure and adhesion of cathodic-arc and glow-discharge deposited TiN/TiO2 coatings: a case study

    Article • Journal of Physics Conference Series, April 2020, Institute of Physics Publishing

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  49. Multi-Scale Surface Texturing in Tribology—Current Knowledge and Future Perspectives

    Article • Lubricants, October 2019, MDPI AG

    Emil Yankov

  50. A System for Measurement of the Asymmetry between Left and Right Shoulders

    Article • October 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Emil Yankov

  51. Biomineralization of Titanium Alloy with Surface Micro - and Nanoscaled Modifications

    Article • Key Engineering Materials, July 2019, Trans Tech Publications

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  52. Ethylene Oxide Sterilization of TiN/TiO2 Coated Titanium Implant Material

    Article • Key Engineering Materials, July 2019, Trans Tech Publications

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov, Emil Yankov

  53. Surface Texturing in Machine Elements − A Critical Discussion for Rolling and Sliding Contacts

    Article • Advanced Engineering Materials, June 2019, Wiley

    Emil Yankov

  54. Microstructure and mechanical characterization of aluminum thin films on steel substrates

    Article • Materials Today Proceedings, January 2019, Elsevier

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  55. Corrosion Study of Ti5Al4V and Ti6Al4V in Different Simulated Body Fluids

    Article • December 2018, Springer Science + Business Media

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  56. Orientation of the Digital Model for SLA 3D Printing and Its Influence on the Accuracy of the Manufactured Physical Objects for Micro- and Nano Technologies

    Article • December 2018, Springer Science + Business Media

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  57. Changes in the Mechanical Properties of Ti Samples with TiN and TiN/TiO2 Coatings Deposited by Different PVD Methods

    Article • IOP Conference Series Materials Science and Engineering, October 2018, Institute of Physics Publishing

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  58. Comparison of the Corrosion Behaviour of Differently Deposited PVD TiN/TiO2 Coatings on Electron Beam Modified Ti5Al4V Alloy

    Article • IOP Conference Series Materials Science and Engineering, October 2018, Institute of Physics Publishing

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  59. Comparison of the Phase Composition and Nanohardness of Gradient TiN/TiO2 Coatings on Ti5Al4V Alloy Deposited by Different PVD Methods

    Article • IOP Conference Series Materials Science and Engineering, October 2018, Institute of Physics Publishing

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  60. Influence of the Chemical Composition, Structure and Heat Treatment on the Topography and Mechanical Properties of Ti5Al4V and Ti6Al4V after Electron Beam Surface Treatment

    Article • IOP Conference Series Materials Science and Engineering, October 2018, Institute of Physics Publishing

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  61. Surface characterization and tribological performance of laser shock peened steel surfaces

    Article • Surface and Coatings Technology, October 2018, Elsevier

    Emil Yankov

  62. Study of the influence of electron beam treatment of Ti5Al4V substrate on the mechanical properties and surface topography of multilayer TiN/TiO2 coatings

    Article • Vacuum, August 2018, Elsevier

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  63. Friction and wear on laser textured Ti6Al4V surface subjected to laser shock peening with contacting foil

    Article • Optics & Laser Technology, July 2018, Elsevier

    Emil Yankov

  64. Application of TiN/TiO2 coatings on stainless steel: composition and mechanical reliability

    Article • Journal of Physics Conference Series, March 2018, Institute of Physics Publishing

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  65. Capability of Desktop 3D Printers to Produce Mezo-micro Features for Bio Implantable Meshes

    Article • January 2018, Research Publishing Services

    Emil Yankov

  66. Changes in the mechanical properties and microstructure of anisotropic austenitic stainless sheet steel after uniaxial tensile test

    Article • MATEC Web of Conferences, January 2017, EDP Sciences

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov, Emil Yankov

  67. Effect of vacuum oxy-nitrocarburizing on the microstructure of tool steels: an experimental and modeling study

    Article • MATEC Web of Conferences, January 2017, EDP Sciences

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov

  68. Peculiar behaviour of pure ENAW-Al99.5 sheet metal during uniaxial tensile test

    Article • MATEC Web of Conferences, January 2017, EDP Sciences

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov, Emil Yankov

  69. Comparison of the Accuracy of 3D Printed Prototypes Using the Stereolithography (SLA) Method with the Digital CAD Models

    Article • MATEC Web of Conferences, January 2017, EDP Sciences

    Assoc. Prof. Dr. Maria Plamenova Nikolova, Emil Yankov, Emil Yankov

  70. About the sheet metal testing by hydraulic bulging

    Article • International Journal of Microstructure and Materials Properties, January 2009, Inderscience Publishers

    Emil Yankov