Academy of Civil Aviation

Voltage-Dependent Evolution of Microstructure and Tribo-Mechanical Behaviour of Coatings Formed on CP-Ti from a Wollastonite–Hydroxyapatite Electrolyte by Micro-Arc Oxidation

Commercially pure titanium is widely used for load-bearing implants but its low surface hardness and high friction coefficient limit durability. In this work, calcium- and silicon-bearing coatings were deposited on CP-Ti (VT1-0/ASTM Grade 2) by micro-arc oxidation (MAO) in an aqu...

Development and Investigation of a Navigation Electronic Seal System with an Integrated Satellite Communication Channel

This study presents a compact navigation electronic seal system employing the Iridium SBD9603 radio modem and a specialized antenna for transmitting Short Burst Data (SBD) messages. The primary objective was to integrate a satellite antenna within the constrained space of the dev...