Processing of chromium tungsten nitride hard coatings for glass molding
CrWN coatings were obtained on WC substrates by ion beam assisted deposition (IBAD). The surface roughness and crystallite size of the CrWN coatings were analyzed by atomic force microscopy and X-ray diffraction, respectively. With 4 at.% W doping, more than 50% decrease in crystallite size was foun...
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| Veröffentlicht in: | Surface & coatings technology 2006-10, Vol.201 (3), p.1316-1322 |
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| creator | Lin, Chih-Hsiung Duh, Jenq-Gong Yau, Bao-Shun |
| description | CrWN coatings were obtained on WC substrates by ion beam assisted deposition (IBAD). The surface roughness and crystallite size of the CrWN coatings were analyzed by atomic force microscopy and X-ray diffraction, respectively. With 4
at.% W doping, more than 50% decrease in crystallite size was found, and smaller surface roughness of about 2
nm was obtained due to the reduced crystallinity. This provided satisfactory surface condition requirements of 10
nm with practical optical accuracy for glass molding die. In addition, coatings were heated at 750
°C in air atmosphere for oxidation test. Formation of Cr
2O
3 would induce the surface roughness larger than 40
nm for both CrN and CrWN coatings. According to AES profile, coating CrWN1, with 4.4
at.% W, revealed similar penetration depth of oxygen in comparison to CrN, which was noted for excellent oxidation resistance. Therefore, comparable anti-oxidation behavior was expected for the CrWN coatings with low tungsten contents. It was demonstrated that CrWN coatings with 4.4 to 16.7
at.% tungsten alloying, exhibiting smooth surface roughness and improved hardness, could be considered to possess optimum composition for practical use. |
| doi_str_mv | 10.1016/j.surfcoat.2006.01.064 |
| format | Article |
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at.% W doping, more than 50% decrease in crystallite size was found, and smaller surface roughness of about 2
nm was obtained due to the reduced crystallinity. This provided satisfactory surface condition requirements of 10
nm with practical optical accuracy for glass molding die. In addition, coatings were heated at 750
°C in air atmosphere for oxidation test. Formation of Cr
2O
3 would induce the surface roughness larger than 40
nm for both CrN and CrWN coatings. According to AES profile, coating CrWN1, with 4.4
at.% W, revealed similar penetration depth of oxygen in comparison to CrN, which was noted for excellent oxidation resistance. Therefore, comparable anti-oxidation behavior was expected for the CrWN coatings with low tungsten contents. It was demonstrated that CrWN coatings with 4.4 to 16.7
at.% tungsten alloying, exhibiting smooth surface roughness and improved hardness, could be considered to possess optimum composition for practical use.</description><identifier>ISSN: 0257-8972</identifier><identifier>EISSN: 1879-3347</identifier><identifier>DOI: 10.1016/j.surfcoat.2006.01.064</identifier><identifier>CODEN: SCTEEJ</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>AFM ; Applied sciences ; CrN ; CrWN ; Exact sciences and technology ; Glass molding ; IBAD ; Metallic coatings ; Metals. Metallurgy ; Nonmetallic coatings ; Production techniques ; Surface roughness ; Surface treatment ; XRD</subject><ispartof>Surface & coatings technology, 2006-10, Vol.201 (3), p.1316-1322</ispartof><rights>2006 Elsevier B.V.</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c470t-3c07bdfcccc339ce6d62e016ed4211c44adbc13fdc88daa2516e67f270bf3d7b3</citedby><cites>FETCH-LOGICAL-c470t-3c07bdfcccc339ce6d62e016ed4211c44adbc13fdc88daa2516e67f270bf3d7b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.surfcoat.2006.01.064$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18395224$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Lin, Chih-Hsiung</creatorcontrib><creatorcontrib>Duh, Jenq-Gong</creatorcontrib><creatorcontrib>Yau, Bao-Shun</creatorcontrib><title>Processing of chromium tungsten nitride hard coatings for glass molding</title><title>Surface & coatings technology</title><description>CrWN coatings were obtained on WC substrates by ion beam assisted deposition (IBAD). The surface roughness and crystallite size of the CrWN coatings were analyzed by atomic force microscopy and X-ray diffraction, respectively. With 4
at.% W doping, more than 50% decrease in crystallite size was found, and smaller surface roughness of about 2
nm was obtained due to the reduced crystallinity. This provided satisfactory surface condition requirements of 10
nm with practical optical accuracy for glass molding die. In addition, coatings were heated at 750
°C in air atmosphere for oxidation test. Formation of Cr
2O
3 would induce the surface roughness larger than 40
nm for both CrN and CrWN coatings. According to AES profile, coating CrWN1, with 4.4
at.% W, revealed similar penetration depth of oxygen in comparison to CrN, which was noted for excellent oxidation resistance. Therefore, comparable anti-oxidation behavior was expected for the CrWN coatings with low tungsten contents. It was demonstrated that CrWN coatings with 4.4 to 16.7
at.% tungsten alloying, exhibiting smooth surface roughness and improved hardness, could be considered to possess optimum composition for practical use.</description><subject>AFM</subject><subject>Applied sciences</subject><subject>CrN</subject><subject>CrWN</subject><subject>Exact sciences and technology</subject><subject>Glass molding</subject><subject>IBAD</subject><subject>Metallic coatings</subject><subject>Metals. Metallurgy</subject><subject>Nonmetallic coatings</subject><subject>Production techniques</subject><subject>Surface roughness</subject><subject>Surface treatment</subject><subject>XRD</subject><issn>0257-8972</issn><issn>1879-3347</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqNkMFq3DAQhkVJoZtNXiHo0tzsjiSvZd9aQrotBNpDehbakbSrxba2GjuQt4_NJuTYzkUw-mZ-5mPsRkApQNRfjiVNOWCyYykB6hJECXX1ga1Eo9tCqUpfsBXIjS6aVstP7JLoCABCt9WKbX_nhJ4oDnueAsdDTn2cej5Ow55GP_Ahjjk6zw82O76EzCTxkDLfd5aI96lzc-uKfQy2I3_9-q7Zn-_3j3c_iodf25933x4KrDSMhULQOxdwLqVa9LWrpZ-P8K6SQmBVWbdDoYLDpnHWys38VesgNeyCcnqn1uz2vPeU09_J02j6SOi7zg4-TWRku1HQNu1_gLKpQC9gfQYxJ6Lsgznl2Nv8bASYRbA5mjfBZhFsQJhZ8Dz4-TXBEtouZDtgpPfpRrUbKRfu65nzs5en6LMhjH5A72L2OBqX4r-iXgCAk5aF</recordid><startdate>20061005</startdate><enddate>20061005</enddate><creator>Lin, Chih-Hsiung</creator><creator>Duh, Jenq-Gong</creator><creator>Yau, Bao-Shun</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7TB</scope><scope>FR3</scope></search><sort><creationdate>20061005</creationdate><title>Processing of chromium tungsten nitride hard coatings for glass molding</title><author>Lin, Chih-Hsiung ; Duh, Jenq-Gong ; Yau, Bao-Shun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c470t-3c07bdfcccc339ce6d62e016ed4211c44adbc13fdc88daa2516e67f270bf3d7b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>AFM</topic><topic>Applied sciences</topic><topic>CrN</topic><topic>CrWN</topic><topic>Exact sciences and technology</topic><topic>Glass molding</topic><topic>IBAD</topic><topic>Metallic coatings</topic><topic>Metals. Metallurgy</topic><topic>Nonmetallic coatings</topic><topic>Production techniques</topic><topic>Surface roughness</topic><topic>Surface treatment</topic><topic>XRD</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lin, Chih-Hsiung</creatorcontrib><creatorcontrib>Duh, Jenq-Gong</creatorcontrib><creatorcontrib>Yau, Bao-Shun</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Engineering Research Database</collection><jtitle>Surface & coatings technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lin, Chih-Hsiung</au><au>Duh, Jenq-Gong</au><au>Yau, Bao-Shun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Processing of chromium tungsten nitride hard coatings for glass molding</atitle><jtitle>Surface & coatings technology</jtitle><date>2006-10-05</date><risdate>2006</risdate><volume>201</volume><issue>3</issue><spage>1316</spage><epage>1322</epage><pages>1316-1322</pages><issn>0257-8972</issn><eissn>1879-3347</eissn><coden>SCTEEJ</coden><abstract>CrWN coatings were obtained on WC substrates by ion beam assisted deposition (IBAD). The surface roughness and crystallite size of the CrWN coatings were analyzed by atomic force microscopy and X-ray diffraction, respectively. With 4
at.% W doping, more than 50% decrease in crystallite size was found, and smaller surface roughness of about 2
nm was obtained due to the reduced crystallinity. This provided satisfactory surface condition requirements of 10
nm with practical optical accuracy for glass molding die. In addition, coatings were heated at 750
°C in air atmosphere for oxidation test. Formation of Cr
2O
3 would induce the surface roughness larger than 40
nm for both CrN and CrWN coatings. According to AES profile, coating CrWN1, with 4.4
at.% W, revealed similar penetration depth of oxygen in comparison to CrN, which was noted for excellent oxidation resistance. Therefore, comparable anti-oxidation behavior was expected for the CrWN coatings with low tungsten contents. It was demonstrated that CrWN coatings with 4.4 to 16.7
at.% tungsten alloying, exhibiting smooth surface roughness and improved hardness, could be considered to possess optimum composition for practical use.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.surfcoat.2006.01.064</doi><tpages>7</tpages></addata></record> |
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| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | AFM Applied sciences CrN CrWN Exact sciences and technology Glass molding IBAD Metallic coatings Metals. Metallurgy Nonmetallic coatings Production techniques Surface roughness Surface treatment XRD |
| title | Processing of chromium tungsten nitride hard coatings for glass molding |
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