Hydrophobic diamond films
The peculiarities of wettability of diamond that was obtained in a nanostructured form as ultrananocrystalline diamond (UNCD) films by deposition from a gas phase are considered. Surface hydrogenation leads to hydrophobicity: advancing contact angle θ for UNCD films reaches 106 ± 1° (for diamond sin...
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Veröffentlicht in: | Protection of metals and physical chemistry of surfaces 2013-05, Vol.49 (3), p.325-331 |
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container_title | Protection of metals and physical chemistry of surfaces |
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creator | Ostrovskaya, L. Yu Ral’chenko, V. G. Vlasov, I. I. Khomich, A. A. Bol’shakov, A. P. |
description | The peculiarities of wettability of diamond that was obtained in a nanostructured form as ultrananocrystalline diamond (UNCD) films by deposition from a gas phase are considered. Surface hydrogenation leads to hydrophobicity: advancing contact angle θ for UNCD films reaches 106 ± 1° (for diamond single crystals θ = 93°). Even higher values of θ equal to 124 ± 3° were detected for nanoporous samples of UNCD, in which a graphite-like component was removed by etching. High hydrophobicity is achieved owing to the specific surface morphology of the nanostructured diamond (anisotropic, with high content of nanopores) and chemical modification, which on the whole provides for very low values of free surface energy of the films. It was shown that laser-drilled microholes in polycrystalline diamond also can enhance the hydrophobicity. The wetting behavior of the nanostructured surfaces agrees well with the Cassie-Baxter equation for heterophase porous surfaces. The oxidation and hydrogenation of UNCD films allows controlling of θ in considerably wider ranges compared to single crystal diamond. |
doi_str_mv | 10.1134/S2070205113030118 |
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It was shown that laser-drilled microholes in polycrystalline diamond also can enhance the hydrophobicity. The wetting behavior of the nanostructured surfaces agrees well with the Cassie-Baxter equation for heterophase porous surfaces. The oxidation and hydrogenation of UNCD films allows controlling of θ in considerably wider ranges compared to single crystal diamond.</description><identifier>ISSN: 2070-2051</identifier><identifier>EISSN: 2070-206X</identifier><identifier>DOI: 10.1134/S2070205113030118</identifier><language>eng</language><publisher>Dordrecht: SP MAIK Nauka/Interperiodica</publisher><subject>Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Coatings ; Contact angle ; Corrosion and Coatings ; Hydrogenation ; Hydrophobicity ; Industrial Chemistry/Chemical Engineering ; Inorganic Chemistry ; Materials ; Materials Science ; Mathematical analysis ; Metallic Materials ; Nanostructure ; New Substances ; Single crystals ; Specific surface ; Tribology ; Wettability</subject><ispartof>Protection of metals and physical chemistry of surfaces, 2013-05, Vol.49 (3), p.325-331</ispartof><rights>Pleiades Publishing, Ltd. 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c349t-a9d7a1ea47ee272ddcc8d255ffd8fdbdfe4405a8074f955a91e08307e39befe43</citedby><cites>FETCH-LOGICAL-c349t-a9d7a1ea47ee272ddcc8d255ffd8fdbdfe4405a8074f955a91e08307e39befe43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S2070205113030118$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S2070205113030118$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51297</link.rule.ids></links><search><creatorcontrib>Ostrovskaya, L. Yu</creatorcontrib><creatorcontrib>Ral’chenko, V. G.</creatorcontrib><creatorcontrib>Vlasov, I. I.</creatorcontrib><creatorcontrib>Khomich, A. A.</creatorcontrib><creatorcontrib>Bol’shakov, A. P.</creatorcontrib><title>Hydrophobic diamond films</title><title>Protection of metals and physical chemistry of surfaces</title><addtitle>Prot Met Phys Chem Surf</addtitle><description>The peculiarities of wettability of diamond that was obtained in a nanostructured form as ultrananocrystalline diamond (UNCD) films by deposition from a gas phase are considered. Surface hydrogenation leads to hydrophobicity: advancing contact angle θ for UNCD films reaches 106 ± 1° (for diamond single crystals θ = 93°). Even higher values of θ equal to 124 ± 3° were detected for nanoporous samples of UNCD, in which a graphite-like component was removed by etching. High hydrophobicity is achieved owing to the specific surface morphology of the nanostructured diamond (anisotropic, with high content of nanopores) and chemical modification, which on the whole provides for very low values of free surface energy of the films. It was shown that laser-drilled microholes in polycrystalline diamond also can enhance the hydrophobicity. The wetting behavior of the nanostructured surfaces agrees well with the Cassie-Baxter equation for heterophase porous surfaces. The oxidation and hydrogenation of UNCD films allows controlling of θ in considerably wider ranges compared to single crystal diamond.</description><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Coatings</subject><subject>Contact angle</subject><subject>Corrosion and Coatings</subject><subject>Hydrogenation</subject><subject>Hydrophobicity</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Inorganic Chemistry</subject><subject>Materials</subject><subject>Materials Science</subject><subject>Mathematical analysis</subject><subject>Metallic Materials</subject><subject>Nanostructure</subject><subject>New Substances</subject><subject>Single crystals</subject><subject>Specific surface</subject><subject>Tribology</subject><subject>Wettability</subject><issn>2070-2051</issn><issn>2070-206X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp1kE1Lw0AQhhdRsFZ_QG8FL16is1_Z7FGKtkLBgwrewiY7qylJtu42h_57t0REFJnDfD3vyzCEzChcU8rFzRMDBQxkaoADpcURmRxGGYP89fi7lvSUnMW4AchzVagJma32Nvjtu6-aem4b0_nezl3TdvGcnDjTRrz4ylPycn_3vFhl68flw-J2ndVc6F1mtFWGohEKkSlmbV0XlknpnC2craxDIUCaApRwWkqjKULBQSHXFaYln5Kr0Xcb_MeAcVd2TayxbU2Pfogl5YrlUgqqE3r5C934IfTpukRJrlNAnig6UnXwMQZ05TY0nQn7kkJ5eFb551lJw0ZNTGz_huGH87-iT0BPaVY</recordid><startdate>20130501</startdate><enddate>20130501</enddate><creator>Ostrovskaya, L. 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Yu</creatorcontrib><creatorcontrib>Ral’chenko, V. G.</creatorcontrib><creatorcontrib>Vlasov, I. I.</creatorcontrib><creatorcontrib>Khomich, A. A.</creatorcontrib><creatorcontrib>Bol’shakov, A. P.</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Protection of metals and physical chemistry of surfaces</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ostrovskaya, L. Yu</au><au>Ral’chenko, V. G.</au><au>Vlasov, I. I.</au><au>Khomich, A. A.</au><au>Bol’shakov, A. P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hydrophobic diamond films</atitle><jtitle>Protection of metals and physical chemistry of surfaces</jtitle><stitle>Prot Met Phys Chem Surf</stitle><date>2013-05-01</date><risdate>2013</risdate><volume>49</volume><issue>3</issue><spage>325</spage><epage>331</epage><pages>325-331</pages><issn>2070-2051</issn><eissn>2070-206X</eissn><abstract>The peculiarities of wettability of diamond that was obtained in a nanostructured form as ultrananocrystalline diamond (UNCD) films by deposition from a gas phase are considered. Surface hydrogenation leads to hydrophobicity: advancing contact angle θ for UNCD films reaches 106 ± 1° (for diamond single crystals θ = 93°). Even higher values of θ equal to 124 ± 3° were detected for nanoporous samples of UNCD, in which a graphite-like component was removed by etching. High hydrophobicity is achieved owing to the specific surface morphology of the nanostructured diamond (anisotropic, with high content of nanopores) and chemical modification, which on the whole provides for very low values of free surface energy of the films. It was shown that laser-drilled microholes in polycrystalline diamond also can enhance the hydrophobicity. The wetting behavior of the nanostructured surfaces agrees well with the Cassie-Baxter equation for heterophase porous surfaces. The oxidation and hydrogenation of UNCD films allows controlling of θ in considerably wider ranges compared to single crystal diamond.</abstract><cop>Dordrecht</cop><pub>SP MAIK Nauka/Interperiodica</pub><doi>10.1134/S2070205113030118</doi><tpages>7</tpages></addata></record> |
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subjects | Characterization and Evaluation of Materials Chemistry and Materials Science Coatings Contact angle Corrosion and Coatings Hydrogenation Hydrophobicity Industrial Chemistry/Chemical Engineering Inorganic Chemistry Materials Materials Science Mathematical analysis Metallic Materials Nanostructure New Substances Single crystals Specific surface Tribology Wettability |
title | Hydrophobic diamond films |
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