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Microstructure and isothermal oxidation of 3Al2O3·2SiO2/SiC coating on high and low density carbon-carbon composites
Carbon-carbon composite (C/C) materials are prone to severe oxidation and volatilization problems. To address these issues, mullite (3Al 2 O 3 ·2SiO 2 )/silicon carbide (SiC) coatings were deposited on C/C composite substrates characterized into high and low densities. The coatings were applied by a...
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| Published in: | Journal of Central South University 2013, Vol.20 (1), p.30-36 |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c1695-dd6cd64e74e93b0bc689229dffdbae83ee0eeab22cc177359e820986973116cc3 |
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| cites | cdi_FETCH-LOGICAL-c1695-dd6cd64e74e93b0bc689229dffdbae83ee0eeab22cc177359e820986973116cc3 |
| container_end_page | 36 |
| container_issue | 1 |
| container_start_page | 30 |
| container_title | Journal of Central South University |
| container_volume | 20 |
| creator | Gbologah, L. Xiong, Xiang Hao, Han-lin Zeng, Yi Zhang, Wu-zhuang |
| description | Carbon-carbon composite (C/C) materials are prone to severe oxidation and volatilization problems. To address these issues, mullite (3Al
2
O
3
·2SiO
2
)/silicon carbide (SiC) coatings were deposited on C/C composite substrates characterized into high and low densities. The coatings were applied by a two-step approach: pack cementation and silica sol based slurry coating processes. The relationship between the microstructure of 3Al
2
O
3
·2SiO
2
/SiC coatings and C/C substrates during isothermal oxidation cycle at 1 500 °C was investigated using X-ray diffractometer (XRD) and scanning electron microscope (SEM) mounted with energy dispersive spectrometer (EDS). The results indicate that the density of the substrates has a marked effect on the coatings. Dense, thick and well-bonded coatings are obtained in the high density substrate. After 106 h of isothermal oxidation, the high density substrate with 3Al
2
O
3
·2SiO
2
/SiC coating offers effective protection as compared to low density substrate suffering recession. |
| doi_str_mv | 10.1007/s11771-013-1455-5 |
| format | article |
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2
O
3
·2SiO
2
)/silicon carbide (SiC) coatings were deposited on C/C composite substrates characterized into high and low densities. The coatings were applied by a two-step approach: pack cementation and silica sol based slurry coating processes. The relationship between the microstructure of 3Al
2
O
3
·2SiO
2
/SiC coatings and C/C substrates during isothermal oxidation cycle at 1 500 °C was investigated using X-ray diffractometer (XRD) and scanning electron microscope (SEM) mounted with energy dispersive spectrometer (EDS). The results indicate that the density of the substrates has a marked effect on the coatings. Dense, thick and well-bonded coatings are obtained in the high density substrate. After 106 h of isothermal oxidation, the high density substrate with 3Al
2
O
3
·2SiO
2
/SiC coating offers effective protection as compared to low density substrate suffering recession.</description><identifier>ISSN: 2095-2899</identifier><identifier>EISSN: 2227-5223</identifier><identifier>DOI: 10.1007/s11771-013-1455-5</identifier><language>eng</language><publisher>Heidelberg: Central South University</publisher><subject>Engineering ; Metallic Materials</subject><ispartof>Journal of Central South University, 2013, Vol.20 (1), p.30-36</ispartof><rights>Central South University Press and Springer-Verlag Berlin Heidelberg 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1695-dd6cd64e74e93b0bc689229dffdbae83ee0eeab22cc177359e820986973116cc3</citedby><cites>FETCH-LOGICAL-c1695-dd6cd64e74e93b0bc689229dffdbae83ee0eeab22cc177359e820986973116cc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Gbologah, L.</creatorcontrib><creatorcontrib>Xiong, Xiang</creatorcontrib><creatorcontrib>Hao, Han-lin</creatorcontrib><creatorcontrib>Zeng, Yi</creatorcontrib><creatorcontrib>Zhang, Wu-zhuang</creatorcontrib><title>Microstructure and isothermal oxidation of 3Al2O3·2SiO2/SiC coating on high and low density carbon-carbon composites</title><title>Journal of Central South University</title><addtitle>J. Cent. South Univ</addtitle><description>Carbon-carbon composite (C/C) materials are prone to severe oxidation and volatilization problems. To address these issues, mullite (3Al
2
O
3
·2SiO
2
)/silicon carbide (SiC) coatings were deposited on C/C composite substrates characterized into high and low densities. The coatings were applied by a two-step approach: pack cementation and silica sol based slurry coating processes. The relationship between the microstructure of 3Al
2
O
3
·2SiO
2
/SiC coatings and C/C substrates during isothermal oxidation cycle at 1 500 °C was investigated using X-ray diffractometer (XRD) and scanning electron microscope (SEM) mounted with energy dispersive spectrometer (EDS). The results indicate that the density of the substrates has a marked effect on the coatings. Dense, thick and well-bonded coatings are obtained in the high density substrate. After 106 h of isothermal oxidation, the high density substrate with 3Al
2
O
3
·2SiO
2
/SiC coating offers effective protection as compared to low density substrate suffering recession.</description><subject>Engineering</subject><subject>Metallic Materials</subject><issn>2095-2899</issn><issn>2227-5223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp9kE1OwzAQhS0EElXpAdj5Aqb2uHHiZVXxJxV1UVhbju20Rmlc2YmgJ2PPyXAJa1ZvNDNv9OZD6JbRO0ZpOU-MlSUjlHHCFkVBigs0AYCSFAD8MtdUFgQqKa_RLCVfU85AcCHFBA0v3sSQ-jiYfogO685in0K_d_GgWxw-vdW9Dx0ODebLFjb8-wu2fgPzrV9hE_Kw2-E83_vd_tfdhg9sXZd8f8JGxzp0ZJS8fTiG3HfpBl01uk1u9qdT9PZw_7p6IuvN4_NquSaGiRzZWmGsWLhy4SSvaW1EJQGkbRpba1dx56hzugYwJgPghXRVfrUSsuSMCWP4FLHx7vnHFF2jjtEfdDwpRtUZnRrRqYxOndGpIntg9KS82-1cVO9hiF2O-Y_pB60Yc5A</recordid><startdate>2013</startdate><enddate>2013</enddate><creator>Gbologah, L.</creator><creator>Xiong, Xiang</creator><creator>Hao, Han-lin</creator><creator>Zeng, Yi</creator><creator>Zhang, Wu-zhuang</creator><general>Central South University</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>2013</creationdate><title>Microstructure and isothermal oxidation of 3Al2O3·2SiO2/SiC coating on high and low density carbon-carbon composites</title><author>Gbologah, L. ; Xiong, Xiang ; Hao, Han-lin ; Zeng, Yi ; Zhang, Wu-zhuang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1695-dd6cd64e74e93b0bc689229dffdbae83ee0eeab22cc177359e820986973116cc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Engineering</topic><topic>Metallic Materials</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gbologah, L.</creatorcontrib><creatorcontrib>Xiong, Xiang</creatorcontrib><creatorcontrib>Hao, Han-lin</creatorcontrib><creatorcontrib>Zeng, Yi</creatorcontrib><creatorcontrib>Zhang, Wu-zhuang</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of Central South University</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gbologah, L.</au><au>Xiong, Xiang</au><au>Hao, Han-lin</au><au>Zeng, Yi</au><au>Zhang, Wu-zhuang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microstructure and isothermal oxidation of 3Al2O3·2SiO2/SiC coating on high and low density carbon-carbon composites</atitle><jtitle>Journal of Central South University</jtitle><stitle>J. Cent. South Univ</stitle><date>2013</date><risdate>2013</risdate><volume>20</volume><issue>1</issue><spage>30</spage><epage>36</epage><pages>30-36</pages><issn>2095-2899</issn><eissn>2227-5223</eissn><abstract>Carbon-carbon composite (C/C) materials are prone to severe oxidation and volatilization problems. To address these issues, mullite (3Al
2
O
3
·2SiO
2
)/silicon carbide (SiC) coatings were deposited on C/C composite substrates characterized into high and low densities. The coatings were applied by a two-step approach: pack cementation and silica sol based slurry coating processes. The relationship between the microstructure of 3Al
2
O
3
·2SiO
2
/SiC coatings and C/C substrates during isothermal oxidation cycle at 1 500 °C was investigated using X-ray diffractometer (XRD) and scanning electron microscope (SEM) mounted with energy dispersive spectrometer (EDS). The results indicate that the density of the substrates has a marked effect on the coatings. Dense, thick and well-bonded coatings are obtained in the high density substrate. After 106 h of isothermal oxidation, the high density substrate with 3Al
2
O
3
·2SiO
2
/SiC coating offers effective protection as compared to low density substrate suffering recession.</abstract><cop>Heidelberg</cop><pub>Central South University</pub><doi>10.1007/s11771-013-1455-5</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2095-2899 |
| ispartof | Journal of Central South University, 2013, Vol.20 (1), p.30-36 |
| issn | 2095-2899 2227-5223 |
| language | eng |
| recordid | cdi_crossref_primary_10_1007_s11771_013_1455_5 |
| source | Springer Link |
| subjects | Engineering Metallic Materials |
| title | Microstructure and isothermal oxidation of 3Al2O3·2SiO2/SiC coating on high and low density carbon-carbon composites |
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