Amorphous BC5 from first principles calculations

DURANDURDU M.

JOURNAL OF NON-CRYSTALLINE SOLIDS, cilt.592, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 592
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.jnoncrysol.2022.121743
  • Dergi Adı: JOURNAL OF NON-CRYSTALLINE SOLIDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Amorphous, Boron substituted graphite, Graphite, MECHANICAL-PROPERTIES, CARBON, BORON, GRAPHITE, PRESSURE, HARDNESS, FILMS
  • Abdullah Gül Üniversitesi Adresli: Evet

Özet

A boron-substituted amorphous graphite (BC5) network is generated using a first principles molecular dynamics simulation and its atomic structure and electrical and mechanical properties are discussed in details. The network has a layered structure with primarily hexagonal (six membered) rings and its average coordination is about 3.0. The material is a solid solution having a minor amount of B-B homopolar bonds. It is structurally different from the BC5 crystal or monolayers proposed in the literature. The model is a semimetal material based on a generalized gradient approximation with the Hubbard correction (GGA+U) calculation. When its mechanical properties are concerned, they are comparable with those of graphite or amorphous graphite.