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 language | English |
|---|---|
| Pages (from-to) | 32-35 |
| Number of pages | 4 |
| Journal | Materials Letters |
| Volume | 247 |
| DOIs | |
| Publication status | Published - 15 Jul 2019 |
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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 journal › Article
}
TY - JOUR
T1 - Superhard metallic coatings
AU - Musil, Jindřich
AU - Jaroš, Martin
AU - Kos, Šimon
PY - 2019/7/15
Y1 - 2019/7/15
N2 - 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.
AB - 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.
KW - Dual magnetron
KW - Grain size
KW - Hard Ti coating
KW - Hardness
KW - Sputtering
KW - Structure
UR - http://www.scopus.com/inward/record.url?scp=85063123686&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85063123686&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2019.03.086
DO - 10.1016/j.matlet.2019.03.086
M3 - Article
VL - 247
SP - 32
EP - 35
JO - Materials Letters
JF - Materials Letters
SN - 0167-577X
ER -