Development of biocompatible coatings for orthopedic joint implants

Kengesbekov A.B. Serikbaykyzy A. Bayandinova M.B. Batanov E.E. Bazarov N.E. Askhatov A.N.
23 June 2025 al-Farabi Kazakh State National University

Physical Sciences and Technology
2025 #12 Issue 1-2 84 - 94 pp.

This article presents both theoretical and experimental approaches to the development of biocompatible coatings based on hydroxyapatite modified with titanium dioxide for orthopedic implants made from Ti13Nb-13Zr titanium alloy. The primary objective was to enhance the adhesion, mechanical strength and antibacterial properties of the coatings by employing a combined technique: micro-arc oxidation followed by gas-thermal spraying. The influence of electrolyte composition and micro-arc oxidation parameters on the coating’s morphology, surface roughness and adhesion strength were systematically investigated. The highest values of hardness and adhesion were achieved using electrolyte containing Na₂SiO₃, NaOH and Na₂S₂O₃ in conjunction with detonation sputtering method. Morphological and elemental analyses confirmed the density, uniform elemental distribution and minimal porosity of these coatings. Mechanical stability was verified through Rockwell B scale and Martens tests. The proposed dual-step surface treatment strategy offers a promising route for tailoring implant surfaces with multifunctional properties. The obtained results demonstrate that the proposed method can significantly improve the durability and performance of orthopedic implants by producing biocompatible, corrosion-resistant, and mechanically robust coatings.

Biocompatible coatings , coating adhesion , mechanical properties , micro-arc oxidation , surface modification , surface roughness

Text of the article Перейти на текст статьи

Daulet Serikbayev East Kazakhstan Technical University, Ust-Kamenogorsk, Kazakhstan
Institute of Composite Materials, Ust-Kamenogorsk, Kazakhstan
Sarsen Amanzholov East Kazakhstan University, Ust-Kamenogorsk, Kazakhstan
“PlasmaScience” LLP, Ust-Kamenogorsk, Kazakhstan

Daulet Serikbayev East Kazakhstan Technical University
Institute of Composite Materials
Sarsen Amanzholov East Kazakhstan University
“PlasmaScience” LLP

10 лет помогаем публиковать статьи Международный издатель

Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026