Exploration of tungsten carbide reinforcement in photopolymer nano-composites via DLP 3D printing


YÜKSEL N., EREN O., ŞAHİN İ.

Ceramics International, cilt.51, sa.18, ss.26869-26878, 2025 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 51 Sayı: 18
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.ceramint.2025.03.368
  • Dergi Adı: Ceramics International
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.26869-26878
  • Anahtar Kelimeler: Additive manufacturing, Digital light processing (DLP), Mechanical properties, Thermal conductivity, WC nanocomposite
  • Gazi Üniversitesi Adresli: Evet

Özet

Digital Light Processing (DLP) is an advanced 3D printing technology that utilizes UV light to solidify photopolymer resins, enabling the production of high-resolution structures with complex geometries. In this manufacturing technique, the addition of reinforcing particles to the resin matrix enhances the functional properties of the composites. In this study, the functional properties of photopolymer nanocomposites reinforced with tungsten carbide (WC) nanoparticles were systematically investigated. The nanocomposites were fabricated by incorporating WC nanoparticles into the photopolymer resin matrix at varying weight percentages. Mechanical properties were evaluated through tensile, hardness, and impact tests, while thermal performance was analyzed using Thermogravimetric Analysis (TGA), and electrical properties were assessed using the four-probe conductivity test. This study adopts an original approach by comprehensively addressing the optimal reinforcement concentration and the impact of nanoparticle distribution on composite performance. Morphological analyses conducted using Scanning Electron Microscopy (SEM) revealed the important role of homogeneous particle dispersion in enhancing mechanical properties. The findings demonstrated a 42.9 % improvement in maximum tensile strength compared to pristine resin with the addition of 1 wt% WC nanoparticles. However, higher reinforcement concentrations led to particle agglomeration, which reduced mechanical strength and increased brittleness. Electrical and thermal analyses revealed that WC reinforcement did not result in a significant change in conductivity, but it demonstrated improved thermal stability. This study highlights the importance of balancing nanoparticle concentration and distribution to optimize the mechanical, thermal, and electrical properties of WC-reinforced photopolymer nanocomposites.