Characteristics of quadruplet Ti-Mo-TiB2-TiC composites prepared by spark plasma sintering

Nguyen T. P., Delbari S. A., Azizian-Kalandaragh Y., Babapoor A., Quyet Van Le Q. V. L., Namini A. S., ...Daha Fazla

CERAMICS INTERNATIONAL, cilt.46, sa.13, ss.20885-20895, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 46 Sayı: 13
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.ceramint.2020.05.137
  • 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.20885-20895
  • Anahtar Kelimeler: Spark plasma sintering, Titanium diboride, Titanium carbide, Ti-Mo, Characterization, TITANIUM MATRIX COMPOSITES, MECHANICAL-PROPERTIES, METAL-MATRIX, CARBON NANOTUBES, HEAT-TRANSFER, STRENGTHENING MECHANISMS, THERMAL-STRESS, TI-B4C SYSTEM, TIB2 CONTENT, MICROSTRUCTURE
  • Gazi Üniversitesi Adresli: Hayır

Özet

The spark plasma sintering process was implemented to produce four different composites, namely Ti-10 wt% Mo-(0.5, 1, 2, and 4) wt% (TiB2 + TiC). All samples were sintered at 1300 degrees C for 5 min under 50 MPa. A full study was carried out on the mechanical properties and the relative density of these SPSed composite samples. The best relative density of around 98.7% was related to the sample with 1 wt% (TiB2 + TiC). The role of relative density was so predominant that the best values for all mechanical properties, i.e., bending strength, hardness, elongation, and ultimate tensile strength (UTS), were achieved for those with the highest relative density values. The formation of the in-situ TiB phase was proved by the XRD analysis. Besides, microscopical investigations (optical and SEM) showed that adding more ceramic additives led to an increased amount of porosity while Mo solubility decreased in the titanium matrix. Finally, different fracture modes on the surfaces of composite samples were studied using SEM images.