Detailed Information on Publication Record
2011
Evaluation of hardness, tribological behaviour and impact load of carbon-based hard composite coatings exposed to the influence of humidity
SOBOTA, Jaroslav, Jan GROSSMAN, Vilma BURŠÍKOVÁ, Libor DUPÁK, Jiri VYSKOCIL et. al.Basic information
Original name
Evaluation of hardness, tribological behaviour and impact load of carbon-based hard composite coatings exposed to the influence of humidity
Name in Czech
Vyhodnocení tvrdosti, tribologického chování a vlivu zatížení na tvrdé kompozitní povlaky na bázi uhlíku, vystavené vlivu vlhkosti
Authors
SOBOTA, Jaroslav (203 Czech Republic), Jan GROSSMAN (203 Czech Republic), Vilma BURŠÍKOVÁ (203 Czech Republic, guarantor, belonging to the institution), Libor DUPÁK (203 Czech Republic) and Jiri VYSKOCIL (203 Czech Republic)
Edition
Diamond and Related Materials, USA, Elsevier, 2011, 0925-9635
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10305 Fluids and plasma physics
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 1.913
RIV identification code
RIV/00216224:14310/11:00050394
Organization unit
Faculty of Science
UT WoS
000291140200028
Keywords (in Czech)
Diamantu podobný uhlík; Mechanické vlastnosti; Tribologie
Keywords in English
Diamond-like carbon ; Mechanical properties; Tribology
Tags
International impact, Reviewed
Změněno: 19/1/2012 10:49, doc. RNDr. Vilma Buršíková, Ph.D.
V originále
Diamond-like composite coatings were deposited by PACVD with an interface magnetron sputtered metallic layer prepared by d.c. unbalanced magnetron sputtering onto HSS substrates. The focus of the present work was on the study of the humidity effect on the tribological properties, hardness and impact resistance of the deposited coatings. The coatings were tested under both dry and humid conditions using several testing methods, like the pin-on-disc test equipped with linear reciprocating movement, impact test and depth sensing indentation test. It was found that the humidity may substantially influence not only the results of tribological tests, but surprisingly, also the results of the dynamic wear and hardness tests. By increasing the relative humidity, the value of dynamic impact resistance increased at an equivalent stress of 1.6GPa more than three times. On the other hand, the wear rate of the coated part increased by more than four orders of magnitude. The results of the indentation test were influenced by humidity mainly at nanometre scales. The hardness measured at dry conditions was higher by 25% than the values obtained by the measurements under humid conditions.
In Czech
V rámci práce byly připravovány tenké vrstvy metodou PECVD v kombinaci s magnetronovým naprašováním. Dále byly studovány vlastnosti těchto vrstev, zejména pak jejich změny v reakci na vlhkost, které byly vystaveny.
Links
| GA202/07/1669, research and development project |
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| MSM0021622411, plan (intention) |
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