Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films
The pulsed laser to irradiate the surface of a hydrogenated amorphous carbon (a-C:H) film surface and subsequently evaluated the resultant changes in the carbon bonding distribution in the irradiated area and the change in the surface topography. And, the tribological properties of the laser-irradia...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Harada, Dai [verfasserIn] Tunmee, Sarayut [verfasserIn] Euaruksakul, Chanan [verfasserIn] Rittihong, Ukit [verfasserIn] Nakajima, Hideki [verfasserIn] Aono, Yuko [verfasserIn] Hirata, Yuki [verfasserIn] Ohtake, Naoto [verfasserIn] Akasaka, Hiroki [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Diamond and related materials - Amsterdam [u.a.] : Elsevier Science, 1991, 131 |
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| Übergeordnetes Werk: |
volume:131 |
| DOI / URN: |
10.1016/j.diamond.2022.109573 |
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ELV008986916 |
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| 245 | 1 | 0 | |a Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films |
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| 520 | |a The pulsed laser to irradiate the surface of a hydrogenated amorphous carbon (a-C:H) film surface and subsequently evaluated the resultant changes in the carbon bonding distribution in the irradiated area and the change in the surface topography. And, the tribological properties of the laser-irradiated films were evaluated. The laser irradiation of the a-C:H film surface increased the sp 2 carbon bonding by the short duration of heating and pressurization due to the laser-irradiation. The surface shape changed from flat to convex by the irradiations, and its cross section was hemispherical. The hemispherical shape was attributed to the effect of cavities creation inside the film by laser-irradiation. Ball on disk sliding tests showed that the friction coefficient of laser-irradiated films was lower than that of the non-irradiated films. This is due to increase in the sp 2/(sp 2+ sp 3) carbon ratio and to a decrease in the contact area with the ball as a result of the surface topography. After these sliding tests, the film topography of the laser-irradiated a-C:H films after sliding were changed to a flat surface because of the breaking of cavities during initial sliding. However, the friction coefficient did not become greater than that of non-irradiated a-C:H films. The reduction of the friction coefficient by laser irradiation of a-C:H films is related to the formation of transfer layer at initial sliding. These results indicated that the laser irradiation of a-C:H films is an effective surface treatment to improve their performance as a solid lubricating layer by changing the sp 2 carbon bonding. | ||
| 650 | 4 | |a Laser irradiation | |
| 650 | 4 | |a Hydrogenated amorphous carbon films | |
| 650 | 4 | |a Tribological properties | |
| 650 | 4 | |a Carbon bonding state | |
| 700 | 1 | |a Tunmee, Sarayut |e verfasserin |4 aut | |
| 700 | 1 | |a Euaruksakul, Chanan |e verfasserin |4 aut | |
| 700 | 1 | |a Rittihong, Ukit |e verfasserin |4 aut | |
| 700 | 1 | |a Nakajima, Hideki |e verfasserin |4 aut | |
| 700 | 1 | |a Aono, Yuko |e verfasserin |4 aut | |
| 700 | 1 | |a Hirata, Yuki |e verfasserin |4 aut | |
| 700 | 1 | |a Ohtake, Naoto |e verfasserin |4 aut | |
| 700 | 1 | |a Akasaka, Hiroki |e verfasserin |4 aut | |
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10.1016/j.diamond.2022.109573 doi (DE-627)ELV008986916 (ELSEVIER)S0925-9635(22)00755-5 DE-627 ger DE-627 rda eng 550 670 DE-600 51.79 bkl Harada, Dai verfasserin aut Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pulsed laser to irradiate the surface of a hydrogenated amorphous carbon (a-C:H) film surface and subsequently evaluated the resultant changes in the carbon bonding distribution in the irradiated area and the change in the surface topography. And, the tribological properties of the laser-irradiated films were evaluated. The laser irradiation of the a-C:H film surface increased the sp 2 carbon bonding by the short duration of heating and pressurization due to the laser-irradiation. The surface shape changed from flat to convex by the irradiations, and its cross section was hemispherical. The hemispherical shape was attributed to the effect of cavities creation inside the film by laser-irradiation. Ball on disk sliding tests showed that the friction coefficient of laser-irradiated films was lower than that of the non-irradiated films. This is due to increase in the sp 2/(sp 2+ sp 3) carbon ratio and to a decrease in the contact area with the ball as a result of the surface topography. After these sliding tests, the film topography of the laser-irradiated a-C:H films after sliding were changed to a flat surface because of the breaking of cavities during initial sliding. However, the friction coefficient did not become greater than that of non-irradiated a-C:H films. The reduction of the friction coefficient by laser irradiation of a-C:H films is related to the formation of transfer layer at initial sliding. These results indicated that the laser irradiation of a-C:H films is an effective surface treatment to improve their performance as a solid lubricating layer by changing the sp 2 carbon bonding. Laser irradiation Hydrogenated amorphous carbon films Tribological properties Carbon bonding state Tunmee, Sarayut verfasserin aut Euaruksakul, Chanan verfasserin aut Rittihong, Ukit verfasserin aut Nakajima, Hideki verfasserin aut Aono, Yuko verfasserin aut Hirata, Yuki verfasserin aut Ohtake, Naoto verfasserin aut Akasaka, Hiroki verfasserin aut Enthalten in Diamond and related materials Amsterdam [u.a.] : Elsevier Science, 1991 131 Online-Ressource (DE-627)320597032 (DE-600)2019690-8 (DE-576)098841394 0925-9635 nnns volume:131 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.79 Sonstige Werkstoffe AR 131 |
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10.1016/j.diamond.2022.109573 doi (DE-627)ELV008986916 (ELSEVIER)S0925-9635(22)00755-5 DE-627 ger DE-627 rda eng 550 670 DE-600 51.79 bkl Harada, Dai verfasserin aut Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pulsed laser to irradiate the surface of a hydrogenated amorphous carbon (a-C:H) film surface and subsequently evaluated the resultant changes in the carbon bonding distribution in the irradiated area and the change in the surface topography. And, the tribological properties of the laser-irradiated films were evaluated. The laser irradiation of the a-C:H film surface increased the sp 2 carbon bonding by the short duration of heating and pressurization due to the laser-irradiation. The surface shape changed from flat to convex by the irradiations, and its cross section was hemispherical. The hemispherical shape was attributed to the effect of cavities creation inside the film by laser-irradiation. Ball on disk sliding tests showed that the friction coefficient of laser-irradiated films was lower than that of the non-irradiated films. This is due to increase in the sp 2/(sp 2+ sp 3) carbon ratio and to a decrease in the contact area with the ball as a result of the surface topography. After these sliding tests, the film topography of the laser-irradiated a-C:H films after sliding were changed to a flat surface because of the breaking of cavities during initial sliding. However, the friction coefficient did not become greater than that of non-irradiated a-C:H films. The reduction of the friction coefficient by laser irradiation of a-C:H films is related to the formation of transfer layer at initial sliding. These results indicated that the laser irradiation of a-C:H films is an effective surface treatment to improve their performance as a solid lubricating layer by changing the sp 2 carbon bonding. Laser irradiation Hydrogenated amorphous carbon films Tribological properties Carbon bonding state Tunmee, Sarayut verfasserin aut Euaruksakul, Chanan verfasserin aut Rittihong, Ukit verfasserin aut Nakajima, Hideki verfasserin aut Aono, Yuko verfasserin aut Hirata, Yuki verfasserin aut Ohtake, Naoto verfasserin aut Akasaka, Hiroki verfasserin aut Enthalten in Diamond and related materials Amsterdam [u.a.] : Elsevier Science, 1991 131 Online-Ressource (DE-627)320597032 (DE-600)2019690-8 (DE-576)098841394 0925-9635 nnns volume:131 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.79 Sonstige Werkstoffe AR 131 |
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10.1016/j.diamond.2022.109573 doi (DE-627)ELV008986916 (ELSEVIER)S0925-9635(22)00755-5 DE-627 ger DE-627 rda eng 550 670 DE-600 51.79 bkl Harada, Dai verfasserin aut Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pulsed laser to irradiate the surface of a hydrogenated amorphous carbon (a-C:H) film surface and subsequently evaluated the resultant changes in the carbon bonding distribution in the irradiated area and the change in the surface topography. And, the tribological properties of the laser-irradiated films were evaluated. The laser irradiation of the a-C:H film surface increased the sp 2 carbon bonding by the short duration of heating and pressurization due to the laser-irradiation. The surface shape changed from flat to convex by the irradiations, and its cross section was hemispherical. The hemispherical shape was attributed to the effect of cavities creation inside the film by laser-irradiation. Ball on disk sliding tests showed that the friction coefficient of laser-irradiated films was lower than that of the non-irradiated films. This is due to increase in the sp 2/(sp 2+ sp 3) carbon ratio and to a decrease in the contact area with the ball as a result of the surface topography. After these sliding tests, the film topography of the laser-irradiated a-C:H films after sliding were changed to a flat surface because of the breaking of cavities during initial sliding. However, the friction coefficient did not become greater than that of non-irradiated a-C:H films. The reduction of the friction coefficient by laser irradiation of a-C:H films is related to the formation of transfer layer at initial sliding. These results indicated that the laser irradiation of a-C:H films is an effective surface treatment to improve their performance as a solid lubricating layer by changing the sp 2 carbon bonding. Laser irradiation Hydrogenated amorphous carbon films Tribological properties Carbon bonding state Tunmee, Sarayut verfasserin aut Euaruksakul, Chanan verfasserin aut Rittihong, Ukit verfasserin aut Nakajima, Hideki verfasserin aut Aono, Yuko verfasserin aut Hirata, Yuki verfasserin aut Ohtake, Naoto verfasserin aut Akasaka, Hiroki verfasserin aut Enthalten in Diamond and related materials Amsterdam [u.a.] : Elsevier Science, 1991 131 Online-Ressource (DE-627)320597032 (DE-600)2019690-8 (DE-576)098841394 0925-9635 nnns volume:131 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.79 Sonstige Werkstoffe AR 131 |
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10.1016/j.diamond.2022.109573 doi (DE-627)ELV008986916 (ELSEVIER)S0925-9635(22)00755-5 DE-627 ger DE-627 rda eng 550 670 DE-600 51.79 bkl Harada, Dai verfasserin aut Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pulsed laser to irradiate the surface of a hydrogenated amorphous carbon (a-C:H) film surface and subsequently evaluated the resultant changes in the carbon bonding distribution in the irradiated area and the change in the surface topography. And, the tribological properties of the laser-irradiated films were evaluated. The laser irradiation of the a-C:H film surface increased the sp 2 carbon bonding by the short duration of heating and pressurization due to the laser-irradiation. The surface shape changed from flat to convex by the irradiations, and its cross section was hemispherical. The hemispherical shape was attributed to the effect of cavities creation inside the film by laser-irradiation. Ball on disk sliding tests showed that the friction coefficient of laser-irradiated films was lower than that of the non-irradiated films. This is due to increase in the sp 2/(sp 2+ sp 3) carbon ratio and to a decrease in the contact area with the ball as a result of the surface topography. After these sliding tests, the film topography of the laser-irradiated a-C:H films after sliding were changed to a flat surface because of the breaking of cavities during initial sliding. However, the friction coefficient did not become greater than that of non-irradiated a-C:H films. The reduction of the friction coefficient by laser irradiation of a-C:H films is related to the formation of transfer layer at initial sliding. These results indicated that the laser irradiation of a-C:H films is an effective surface treatment to improve their performance as a solid lubricating layer by changing the sp 2 carbon bonding. Laser irradiation Hydrogenated amorphous carbon films Tribological properties Carbon bonding state Tunmee, Sarayut verfasserin aut Euaruksakul, Chanan verfasserin aut Rittihong, Ukit verfasserin aut Nakajima, Hideki verfasserin aut Aono, Yuko verfasserin aut Hirata, Yuki verfasserin aut Ohtake, Naoto verfasserin aut Akasaka, Hiroki verfasserin aut Enthalten in Diamond and related materials Amsterdam [u.a.] : Elsevier Science, 1991 131 Online-Ressource (DE-627)320597032 (DE-600)2019690-8 (DE-576)098841394 0925-9635 nnns volume:131 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.79 Sonstige Werkstoffe AR 131 |
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10.1016/j.diamond.2022.109573 doi (DE-627)ELV008986916 (ELSEVIER)S0925-9635(22)00755-5 DE-627 ger DE-627 rda eng 550 670 DE-600 51.79 bkl Harada, Dai verfasserin aut Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pulsed laser to irradiate the surface of a hydrogenated amorphous carbon (a-C:H) film surface and subsequently evaluated the resultant changes in the carbon bonding distribution in the irradiated area and the change in the surface topography. And, the tribological properties of the laser-irradiated films were evaluated. The laser irradiation of the a-C:H film surface increased the sp 2 carbon bonding by the short duration of heating and pressurization due to the laser-irradiation. The surface shape changed from flat to convex by the irradiations, and its cross section was hemispherical. The hemispherical shape was attributed to the effect of cavities creation inside the film by laser-irradiation. Ball on disk sliding tests showed that the friction coefficient of laser-irradiated films was lower than that of the non-irradiated films. This is due to increase in the sp 2/(sp 2+ sp 3) carbon ratio and to a decrease in the contact area with the ball as a result of the surface topography. After these sliding tests, the film topography of the laser-irradiated a-C:H films after sliding were changed to a flat surface because of the breaking of cavities during initial sliding. However, the friction coefficient did not become greater than that of non-irradiated a-C:H films. The reduction of the friction coefficient by laser irradiation of a-C:H films is related to the formation of transfer layer at initial sliding. These results indicated that the laser irradiation of a-C:H films is an effective surface treatment to improve their performance as a solid lubricating layer by changing the sp 2 carbon bonding. Laser irradiation Hydrogenated amorphous carbon films Tribological properties Carbon bonding state Tunmee, Sarayut verfasserin aut Euaruksakul, Chanan verfasserin aut Rittihong, Ukit verfasserin aut Nakajima, Hideki verfasserin aut Aono, Yuko verfasserin aut Hirata, Yuki verfasserin aut Ohtake, Naoto verfasserin aut Akasaka, Hiroki verfasserin aut Enthalten in Diamond and related materials Amsterdam [u.a.] : Elsevier Science, 1991 131 Online-Ressource (DE-627)320597032 (DE-600)2019690-8 (DE-576)098841394 0925-9635 nnns volume:131 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.79 Sonstige Werkstoffe AR 131 |
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Enthalten in Diamond and related materials 131 volume:131 |
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Harada, Dai @@aut@@ Tunmee, Sarayut @@aut@@ Euaruksakul, Chanan @@aut@@ Rittihong, Ukit @@aut@@ Nakajima, Hideki @@aut@@ Aono, Yuko @@aut@@ Hirata, Yuki @@aut@@ Ohtake, Naoto @@aut@@ Akasaka, Hiroki @@aut@@ |
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Harada, Dai |
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Harada, Dai ddc 550 bkl 51.79 misc Laser irradiation misc Hydrogenated amorphous carbon films misc Tribological properties misc Carbon bonding state Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films |
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550 670 DE-600 51.79 bkl Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films Laser irradiation Hydrogenated amorphous carbon films Tribological properties Carbon bonding state |
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ddc 550 bkl 51.79 misc Laser irradiation misc Hydrogenated amorphous carbon films misc Tribological properties misc Carbon bonding state |
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ddc 550 bkl 51.79 misc Laser irradiation misc Hydrogenated amorphous carbon films misc Tribological properties misc Carbon bonding state |
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Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films |
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Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films |
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Diamond and related materials |
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Harada, Dai Tunmee, Sarayut Euaruksakul, Chanan Rittihong, Ukit Nakajima, Hideki Aono, Yuko Hirata, Yuki Ohtake, Naoto Akasaka, Hiroki |
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investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films |
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Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films |
| abstract |
The pulsed laser to irradiate the surface of a hydrogenated amorphous carbon (a-C:H) film surface and subsequently evaluated the resultant changes in the carbon bonding distribution in the irradiated area and the change in the surface topography. And, the tribological properties of the laser-irradiated films were evaluated. The laser irradiation of the a-C:H film surface increased the sp 2 carbon bonding by the short duration of heating and pressurization due to the laser-irradiation. The surface shape changed from flat to convex by the irradiations, and its cross section was hemispherical. The hemispherical shape was attributed to the effect of cavities creation inside the film by laser-irradiation. Ball on disk sliding tests showed that the friction coefficient of laser-irradiated films was lower than that of the non-irradiated films. This is due to increase in the sp 2/(sp 2+ sp 3) carbon ratio and to a decrease in the contact area with the ball as a result of the surface topography. After these sliding tests, the film topography of the laser-irradiated a-C:H films after sliding were changed to a flat surface because of the breaking of cavities during initial sliding. However, the friction coefficient did not become greater than that of non-irradiated a-C:H films. The reduction of the friction coefficient by laser irradiation of a-C:H films is related to the formation of transfer layer at initial sliding. These results indicated that the laser irradiation of a-C:H films is an effective surface treatment to improve their performance as a solid lubricating layer by changing the sp 2 carbon bonding. |
| abstractGer |
The pulsed laser to irradiate the surface of a hydrogenated amorphous carbon (a-C:H) film surface and subsequently evaluated the resultant changes in the carbon bonding distribution in the irradiated area and the change in the surface topography. And, the tribological properties of the laser-irradiated films were evaluated. The laser irradiation of the a-C:H film surface increased the sp 2 carbon bonding by the short duration of heating and pressurization due to the laser-irradiation. The surface shape changed from flat to convex by the irradiations, and its cross section was hemispherical. The hemispherical shape was attributed to the effect of cavities creation inside the film by laser-irradiation. Ball on disk sliding tests showed that the friction coefficient of laser-irradiated films was lower than that of the non-irradiated films. This is due to increase in the sp 2/(sp 2+ sp 3) carbon ratio and to a decrease in the contact area with the ball as a result of the surface topography. After these sliding tests, the film topography of the laser-irradiated a-C:H films after sliding were changed to a flat surface because of the breaking of cavities during initial sliding. However, the friction coefficient did not become greater than that of non-irradiated a-C:H films. The reduction of the friction coefficient by laser irradiation of a-C:H films is related to the formation of transfer layer at initial sliding. These results indicated that the laser irradiation of a-C:H films is an effective surface treatment to improve their performance as a solid lubricating layer by changing the sp 2 carbon bonding. |
| abstract_unstemmed |
The pulsed laser to irradiate the surface of a hydrogenated amorphous carbon (a-C:H) film surface and subsequently evaluated the resultant changes in the carbon bonding distribution in the irradiated area and the change in the surface topography. And, the tribological properties of the laser-irradiated films were evaluated. The laser irradiation of the a-C:H film surface increased the sp 2 carbon bonding by the short duration of heating and pressurization due to the laser-irradiation. The surface shape changed from flat to convex by the irradiations, and its cross section was hemispherical. The hemispherical shape was attributed to the effect of cavities creation inside the film by laser-irradiation. Ball on disk sliding tests showed that the friction coefficient of laser-irradiated films was lower than that of the non-irradiated films. This is due to increase in the sp 2/(sp 2+ sp 3) carbon ratio and to a decrease in the contact area with the ball as a result of the surface topography. After these sliding tests, the film topography of the laser-irradiated a-C:H films after sliding were changed to a flat surface because of the breaking of cavities during initial sliding. However, the friction coefficient did not become greater than that of non-irradiated a-C:H films. The reduction of the friction coefficient by laser irradiation of a-C:H films is related to the formation of transfer layer at initial sliding. These results indicated that the laser irradiation of a-C:H films is an effective surface treatment to improve their performance as a solid lubricating layer by changing the sp 2 carbon bonding. |
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Investigation of the structure and tribological properties of laser-irradiated hydrogenated amorphous carbon films |
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| score |
7.401532 |