2022
Phase formation, thermal stability and mechanical properties of Nb-B-C coatings prepared by combinatorial magnetron sputtering
DEBNÁROVÁ, Stanislava; Pavel SOUČEK; Vilma BURŠÍKOVÁ; Marcus HANS; Damian HOLZAPFEL et al.Základní údaje
Originální název
Phase formation, thermal stability and mechanical properties of Nb-B-C coatings prepared by combinatorial magnetron sputtering
Autoři
DEBNÁROVÁ, Stanislava ORCID; Pavel SOUČEK; Vilma BURŠÍKOVÁ; Marcus HANS; Damian HOLZAPFEL; Stanislav MRÁZ; Jochen M. SCHNEIDER a Petr VAŠINA
Vydání
Surface & Coatings Technology, Elsevier, 2022, 0257-8972
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
20506 Coating and films
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.400
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/22:00119610
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Nb-B-C; Coatings; Combinatorial magnetron sputtering; Protective coatings; Thermal stability; Mechanical properties
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 27. 2. 2024 13:28, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
In this study, combinatorial magnetron sputtering was used to deposit Nb-B-C coatings in a wide composition range. The phase formation, thermal stability and mechanical properties of these coatings were investigated in relation to their composition and deposition conditions. The studied coatings were amorphous, short range ordered or exhibited crystalline phases such as Nb, NbC and NbB2. Higher energy flux to the coating achieved by the use of bias and heating during deposition resulted in coatings being crystalline over a wider composition range. Annealing of the coatings after deposition resulted in a higher degree of crystallinity as well as an increase in hardness and effective elastic modulus. The hardness of the coatings was up to 22.5 ± 0.7 GPa before and up to 35.0 ± 0.6 GPa after annealing. The effective elastic modulus was up to 240 ± 10 GPa before and up to 310 ± 7 GPa after annealing. Coatings with a high B content exhibited the highest hardness and elastic modulus in both cases. Coating powder was prepared by sputtering a Nb2BC target and studied using differential scanning calorimetry. The powder exhibited a crystalline NbC phase before and after annealing up to 900 °C. The material was stable in an Ar atmosphere in the studied temperature range. In an Ar + O2 mixture, the powder was stable up to ~580 °C. At this temperature, an oxidation reaction started, resulting in the formation of Nb2O5.
Návaznosti
| EF19_073/0016943, projekt VaV |
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| GA19-03899S, projekt VaV |
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| 90097, velká výzkumná infrastruktura |
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