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Protective over-layer coating preventing cracking of thin films deposited on flexible substrates
The article reports on a special over-layer which protects brittle coatings deposited on flexible substrates against cracking during bending. It is shown that the over-layer with (i) the low effective Young's modulus E⁎=E/(1−ν2) resulting in a high ratio H/E⁎≥0.1, (ii) the high elastic recovery...
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| Published in: | Surface & coatings technology 2014-02, Vol.240, p.275-280 |
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| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c375t-2ded6560730636041a15fbe496a4852d9648eeab165bc73f4fdba53172b9ae7b3 |
| container_end_page | 280 |
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| container_start_page | 275 |
| container_title | Surface & coatings technology |
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| creator | Musil, J. Sklenka, J. Prochazka, J. |
| description | The article reports on a special over-layer which protects brittle coatings deposited on flexible substrates against cracking during bending. It is shown that the over-layer with (i) the low effective Young's modulus E⁎=E/(1−ν2) resulting in a high ratio H/E⁎≥0.1, (ii) the high elastic recovery We≥60% and (iii) the compressive macrostress (σ |
| doi_str_mv | 10.1016/j.surfcoat.2013.12.041 |
| format | article |
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•The flexible over-layer coating preventing cracking is investigated.•Physical and mechanical properties of over-layer are determined.•Flexible over-layer overcoat brittle coating.•Elimination of cracking was demonstrated in two-layer Zr–Si–O coating.</description><identifier>ISSN: 0257-8972</identifier><identifier>EISSN: 1879-3347</identifier><identifier>DOI: 10.1016/j.surfcoat.2013.12.041</identifier><identifier>CODEN: SCTEEJ</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Bending modulus ; Brittleness ; Coating ; Corrosion ; Corrosion prevention ; Cracks ; Cross-disciplinary physics: materials science; rheology ; Deposition ; Exact sciences and technology ; Fracture mechanics ; Magnetron sputtering ; Materials science ; Mechanical properties ; Metals. Metallurgy ; Methods of deposition of films and coatings; film growth and epitaxy ; Nanocomposite coatings ; Physics ; Production techniques ; Protective ; Resistance to cracking ; Surface cracking ; Surface strengthening ; Surface treatment ; Surface treatments ; Thin films ; Zirconium</subject><ispartof>Surface & coatings technology, 2014-02, Vol.240, p.275-280</ispartof><rights>2014 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c375t-2ded6560730636041a15fbe496a4852d9648eeab165bc73f4fdba53172b9ae7b3</citedby><cites>FETCH-LOGICAL-c375t-2ded6560730636041a15fbe496a4852d9648eeab165bc73f4fdba53172b9ae7b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28254306$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Musil, J.</creatorcontrib><creatorcontrib>Sklenka, J.</creatorcontrib><creatorcontrib>Prochazka, J.</creatorcontrib><title>Protective over-layer coating preventing cracking of thin films deposited on flexible substrates</title><title>Surface & coatings technology</title><description>The article reports on a special over-layer which protects brittle coatings deposited on flexible substrates against cracking during bending. It is shown that the over-layer with (i) the low effective Young's modulus E⁎=E/(1−ν2) resulting in a high ratio H/E⁎≥0.1, (ii) the high elastic recovery We≥60% and (iii) the compressive macrostress (σ<0) deposited on a brittle coating can prevent its cracking during bending; ν is the Poison's ratio and H is the hardness of the over-layer. The possibility of how to prevent cracking of the brittle coatings is demonstrated experimentally. The over-layer was deposited on the brittle coating which easily cracks when the flexible substrate is bended. In this experiment the Zr–Si–O coating with low ratio H/E⁎<0.1, low value of We≈50% and tensile macrostress (σ>0) was used as the brittle coating and the highly elastic Zr–Si–O coating with high ratio H/E⁎≈0.1, high value of We≈70% and compressive macrostress (σ<0) was used as the over-layer. Both the brittle coating and the over-layer were prepared by the reactive magnetron sputtering using a dual magnetron. Besides, the mechanical behavior of the coating composed of three and four layers is described in detail. Obtained results can be used in the development of flexible coatings, strengthening of the surface of brittle materials, elimination of cracking of functional coatings and cracking at surfaces of bended materials.
•The flexible over-layer coating preventing cracking is investigated.•Physical and mechanical properties of over-layer are determined.•Flexible over-layer overcoat brittle coating.•Elimination of cracking was demonstrated in two-layer Zr–Si–O coating.</description><subject>Applied sciences</subject><subject>Bending modulus</subject><subject>Brittleness</subject><subject>Coating</subject><subject>Corrosion</subject><subject>Corrosion prevention</subject><subject>Cracks</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Deposition</subject><subject>Exact sciences and technology</subject><subject>Fracture mechanics</subject><subject>Magnetron sputtering</subject><subject>Materials science</subject><subject>Mechanical properties</subject><subject>Metals. Metallurgy</subject><subject>Methods of deposition of films and coatings; film growth and epitaxy</subject><subject>Nanocomposite coatings</subject><subject>Physics</subject><subject>Production techniques</subject><subject>Protective</subject><subject>Resistance to cracking</subject><subject>Surface cracking</subject><subject>Surface strengthening</subject><subject>Surface treatment</subject><subject>Surface treatments</subject><subject>Thin films</subject><subject>Zirconium</subject><issn>0257-8972</issn><issn>1879-3347</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFUMtu2zAQJIoUqOP2FwpdAuQihQ-RlG4JgqQNYKA9JGeGopYtHVl0uLQR_32l2s21e9nFYmZndgj5ymjFKFNX6wp3ybtoc8UpExXjFa3ZB7JgjW5LIWp9RhaUS102reafyDnimlLKdFsvyPPPFDO4HPZQxD2kcrAHSMV8LYy_im2CPYx_R5ese5mH6Iv8O4yFD8MGix62EUOGvojTaoC30A1Q4K7DnGwG_Ew-ejsgfDn1JXm6v3u8_V6ufnx7uL1ZlU5omUveQ6-kolpQJdTk3zLpO6hbZetG8r5VdQNgO6Zk57Twte87KwXTvGst6E4syeXx7jbF1x1gNpuADobBjhB3aJhqZMPEXEuijlCXImICb7YpbGw6GEbNHKlZm3-RmjlSw7iZLE3Ei5OGRWcHn-zoAr6zecNlPftfkusjDqaH9wGSQRdgdNCHNGVt-hj-J_UHfACSCg</recordid><startdate>20140215</startdate><enddate>20140215</enddate><creator>Musil, J.</creator><creator>Sklenka, J.</creator><creator>Prochazka, J.</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></search><sort><creationdate>20140215</creationdate><title>Protective over-layer coating preventing cracking of thin films deposited on flexible substrates</title><author>Musil, J. ; Sklenka, J. ; Prochazka, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c375t-2ded6560730636041a15fbe496a4852d9648eeab165bc73f4fdba53172b9ae7b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Applied sciences</topic><topic>Bending modulus</topic><topic>Brittleness</topic><topic>Coating</topic><topic>Corrosion</topic><topic>Corrosion prevention</topic><topic>Cracks</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Deposition</topic><topic>Exact sciences and technology</topic><topic>Fracture mechanics</topic><topic>Magnetron sputtering</topic><topic>Materials science</topic><topic>Mechanical properties</topic><topic>Metals. Metallurgy</topic><topic>Methods of deposition of films and coatings; film growth and epitaxy</topic><topic>Nanocomposite coatings</topic><topic>Physics</topic><topic>Production techniques</topic><topic>Protective</topic><topic>Resistance to cracking</topic><topic>Surface cracking</topic><topic>Surface strengthening</topic><topic>Surface treatment</topic><topic>Surface treatments</topic><topic>Thin films</topic><topic>Zirconium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Musil, J.</creatorcontrib><creatorcontrib>Sklenka, J.</creatorcontrib><creatorcontrib>Prochazka, J.</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><jtitle>Surface & coatings technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Musil, J.</au><au>Sklenka, J.</au><au>Prochazka, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Protective over-layer coating preventing cracking of thin films deposited on flexible substrates</atitle><jtitle>Surface & coatings technology</jtitle><date>2014-02-15</date><risdate>2014</risdate><volume>240</volume><spage>275</spage><epage>280</epage><pages>275-280</pages><issn>0257-8972</issn><eissn>1879-3347</eissn><coden>SCTEEJ</coden><abstract>The article reports on a special over-layer which protects brittle coatings deposited on flexible substrates against cracking during bending. It is shown that the over-layer with (i) the low effective Young's modulus E⁎=E/(1−ν2) resulting in a high ratio H/E⁎≥0.1, (ii) the high elastic recovery We≥60% and (iii) the compressive macrostress (σ<0) deposited on a brittle coating can prevent its cracking during bending; ν is the Poison's ratio and H is the hardness of the over-layer. The possibility of how to prevent cracking of the brittle coatings is demonstrated experimentally. The over-layer was deposited on the brittle coating which easily cracks when the flexible substrate is bended. In this experiment the Zr–Si–O coating with low ratio H/E⁎<0.1, low value of We≈50% and tensile macrostress (σ>0) was used as the brittle coating and the highly elastic Zr–Si–O coating with high ratio H/E⁎≈0.1, high value of We≈70% and compressive macrostress (σ<0) was used as the over-layer. Both the brittle coating and the over-layer were prepared by the reactive magnetron sputtering using a dual magnetron. Besides, the mechanical behavior of the coating composed of three and four layers is described in detail. Obtained results can be used in the development of flexible coatings, strengthening of the surface of brittle materials, elimination of cracking of functional coatings and cracking at surfaces of bended materials.
•The flexible over-layer coating preventing cracking is investigated.•Physical and mechanical properties of over-layer are determined.•Flexible over-layer overcoat brittle coating.•Elimination of cracking was demonstrated in two-layer Zr–Si–O coating.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.surfcoat.2013.12.041</doi><tpages>6</tpages></addata></record> |
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| ispartof | Surface & coatings technology, 2014-02, Vol.240, p.275-280 |
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| language | eng |
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| source | Elsevier |
| subjects | Applied sciences Bending modulus Brittleness Coating Corrosion Corrosion prevention Cracks Cross-disciplinary physics: materials science rheology Deposition Exact sciences and technology Fracture mechanics Magnetron sputtering Materials science Mechanical properties Metals. Metallurgy Methods of deposition of films and coatings film growth and epitaxy Nanocomposite coatings Physics Production techniques Protective Resistance to cracking Surface cracking Surface strengthening Surface treatment Surface treatments Thin films Zirconium |
| title | Protective over-layer coating preventing cracking of thin films deposited on flexible substrates |
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