Superhard metallic coatings

Jindřich Musil, Martin Jaroš, Šimon Kos

Research output: Contribution to journalArticle

Abstract

The letter reports on the surface hardening of bulk soft metal materials by protective coatings made of the same metal as bulk but with up to 6 times higher hardness than that of the bulk material. This surface hardening is demonstrated by covering of the Ti substrate with a low hardness H bulk ≈ 5 GPa by a 1200 nm thick Ti coating with a high hardness H coating ≈ 30 GPa. The protective hard Ti coatings were sputtered by a new sputtering technology based on extremely high pressures (≥1000 GPa), high temperatures exceeding the melting temperature T m of the coating material and extremely high cooling rate of the created coating (≥10 10 K/s). The principle of this technology realized at an atomic level is described in detail.

Original languageEnglish
Pages (from-to)32-35
Number of pages4
JournalMaterials Letters
Volume247
DOIs
Publication statusPublished - 15 Jul 2019

Fingerprint

coatings
Coatings
Hardness
Protective coatings
hardness
Hardening
hardening
Metals
Hard coatings
protective coatings
Sputtering
Melting point
metals
Cooling
coverings
sputtering
melting
Substrates
cooling
Temperature

Keywords

  • Dual magnetron
  • Grain size
  • Hard Ti coating
  • Hardness
  • Sputtering
  • Structure

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Superhard metallic coatings. / Musil, Jindřich; Jaroš, Martin; Kos, Šimon.

In: Materials Letters, Vol. 247, 15.07.2019, p. 32-35.

Research output: Contribution to journalArticle

Musil, Jindřich ; Jaroš, Martin ; Kos, Šimon. / Superhard metallic coatings. In: Materials Letters. 2019 ; Vol. 247. pp. 32-35.
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