Characterization and performance of Tantalum-Tungsten based coatings deposited on Cp-Ti substrates by PVD technique


ŞENOCAK T. Ç.

Materials Today Communications, cilt.37, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1016/j.mtcomm.2023.107091
  • Dergi Adı: Materials Today Communications
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Anahtar Kelimeler: Antibacterial effect, PVD coatings, Silver-doped coatings, Tantalum-Tungsten based coatings
  • Atatürk Üniversitesi Adresli: Evet

Özet

Titanium has revolutionized various industries due to its exceptional properties, including superior tensile strength, lightweight, and remarkable resistance to oxygen and acids. However, titanium has limitations, such as high-temperature interactions and hydrogen embrittlement. Protective coatings using Physical Vapor Deposition (PVD) deal with these challenges. Tantalum and tungsten nitride coatings provide corrosion resistance and surface hardness improvement. Adding metals like gold, silver, and copper can modify coated materials but may result in immiscible phases. Silver-doped coatings are used for their thermal conductivity, antimicrobial properties, and widespread applications in medical devices and sports equipment. Enhancing the surface characteristics of Cp-Ti (grade 2) through tantalum-tungsten-based coatings is the objective of this study. The structural properties, mechanical performance, corrosion resistance, and antibacterial properties were evaluated through XRD, SEM, AFM, XPS analyses, nanoindentation, scratch tests. In this study, tantalum-tungsten-based coatings were applied to Cp-Ti (Grade 2) to enhance its surface properties, with evaluations conducted through various analyses and tests revealing details about their structural features and performance. Notably, the addition of silver to the coatings amplified their hardness and antibacterial properties, though it detrimentally affected corrosion performance due to an increase in gaps count.