Effect of glycerine addition on the synthesis of boron carbide from condensed boric acid-polyvinyl alcohol precursor
Boron carbide (B 4 C) powder was synthesized by heating a gel precursor with pyrolysis and carbothermal processes. The gel precursor was prepared by the condensation reaction of boric acid (H 3 BO 3 ) and polyvinyl alcohol (PVA) at a weight ratio of 1/2 with the addition of various amounts of glycer...
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| Veröffentlicht in: | RSC advances 2016-01, Vol.6 (11), p.9338-9343 |
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| creator | Chen, X. W Dong, S. M Kan, Y. M Zhou, H. J Hu, J. B Ding, Y. S |
| description | Boron carbide (B
4
C) powder was synthesized by heating a gel precursor with pyrolysis and carbothermal processes. The gel precursor was prepared by the condensation reaction of boric acid (H
3
BO
3
) and polyvinyl alcohol (PVA) at a weight ratio of 1/2 with the addition of various amounts of glycerine. The effects of glycerine addition on the synthesis of B
4
C powder were studied. It was observed that glycerine could promote the condensation reaction and resulted in a pyrolyzed precursor with a much finer distribution of B
2
O
3
in the carbon matrix. This led to a significant reduction of residual free carbon in the B
4
C powder. Moreover, the morphology of the B
4
C powder was also found to be closely related to the glycerine addition.
Boron carbide (B
4
C) powder was synthesized by heating a gel precursor with pyrolysis and carbothermal processes. |
| doi_str_mv | 10.1039/c5ra23303h |
| format | Article |
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4
C) powder was synthesized by heating a gel precursor with pyrolysis and carbothermal processes. The gel precursor was prepared by the condensation reaction of boric acid (H
3
BO
3
) and polyvinyl alcohol (PVA) at a weight ratio of 1/2 with the addition of various amounts of glycerine. The effects of glycerine addition on the synthesis of B
4
C powder were studied. It was observed that glycerine could promote the condensation reaction and resulted in a pyrolyzed precursor with a much finer distribution of B
2
O
3
in the carbon matrix. This led to a significant reduction of residual free carbon in the B
4
C powder. Moreover, the morphology of the B
4
C powder was also found to be closely related to the glycerine addition.
Boron carbide (B
4
C) powder was synthesized by heating a gel precursor with pyrolysis and carbothermal processes.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c5ra23303h</identifier><language>eng</language><subject>Boric acids ; Boron carbide ; Carbon ; Condensation ; Polyvinyl alcohols ; Precursors ; Pyrolysis ; Synthesis</subject><ispartof>RSC advances, 2016-01, Vol.6 (11), p.9338-9343</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c356t-ab0413644b81299b6f3362f50e70f65438a2778fb11c0599452540374bd654e83</citedby><cites>FETCH-LOGICAL-c356t-ab0413644b81299b6f3362f50e70f65438a2778fb11c0599452540374bd654e83</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>Chen, X. W</creatorcontrib><creatorcontrib>Dong, S. M</creatorcontrib><creatorcontrib>Kan, Y. M</creatorcontrib><creatorcontrib>Zhou, H. J</creatorcontrib><creatorcontrib>Hu, J. B</creatorcontrib><creatorcontrib>Ding, Y. S</creatorcontrib><title>Effect of glycerine addition on the synthesis of boron carbide from condensed boric acid-polyvinyl alcohol precursor</title><title>RSC advances</title><description>Boron carbide (B
4
C) powder was synthesized by heating a gel precursor with pyrolysis and carbothermal processes. The gel precursor was prepared by the condensation reaction of boric acid (H
3
BO
3
) and polyvinyl alcohol (PVA) at a weight ratio of 1/2 with the addition of various amounts of glycerine. The effects of glycerine addition on the synthesis of B
4
C powder were studied. It was observed that glycerine could promote the condensation reaction and resulted in a pyrolyzed precursor with a much finer distribution of B
2
O
3
in the carbon matrix. This led to a significant reduction of residual free carbon in the B
4
C powder. Moreover, the morphology of the B
4
C powder was also found to be closely related to the glycerine addition.
Boron carbide (B
4
C) powder was synthesized by heating a gel precursor with pyrolysis and carbothermal processes.</description><subject>Boric acids</subject><subject>Boron carbide</subject><subject>Carbon</subject><subject>Condensation</subject><subject>Polyvinyl alcohols</subject><subject>Precursors</subject><subject>Pyrolysis</subject><subject>Synthesis</subject><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNpNkM1LAzEQxYMoWGov3oUcRVjN9-4eS6lWKAii5yWbndhIuqnJVtj_3tSKOgy8Yd6Pd3gIXVJySwmv74yMmnFO-OYETRgRqmBE1af_7nM0S-md5FGSMkUnaFhaC2bAweI3PxqIrgesu84NLvQ477ABnMY-S3LpgLUh5rfRsXUdYBvDFpvQd9An6A6mM1gb1xW74MdP148ea2_CJni8i2D2MYV4gc6s9glmPzpFr_fLl8WqWD89PC7m68JwqYZCt0RQroRoK8rqulWWc8WsJFASq6TglWZlWdmWUkNkXQvJpCC8FG2XXaj4FF0fc3cxfOwhDc3WJQPe6x7CPjW0YlJmtBQZvTmiJoaUIthmF91Wx7GhpDm02yzk8_y73VWGr45wTOaX-2uffwHvpnat</recordid><startdate>20160101</startdate><enddate>20160101</enddate><creator>Chen, X. W</creator><creator>Dong, S. M</creator><creator>Kan, Y. M</creator><creator>Zhou, H. J</creator><creator>Hu, J. B</creator><creator>Ding, Y. S</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20160101</creationdate><title>Effect of glycerine addition on the synthesis of boron carbide from condensed boric acid-polyvinyl alcohol precursor</title><author>Chen, X. W ; Dong, S. M ; Kan, Y. M ; Zhou, H. J ; Hu, J. B ; Ding, Y. S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c356t-ab0413644b81299b6f3362f50e70f65438a2778fb11c0599452540374bd654e83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Boric acids</topic><topic>Boron carbide</topic><topic>Carbon</topic><topic>Condensation</topic><topic>Polyvinyl alcohols</topic><topic>Precursors</topic><topic>Pyrolysis</topic><topic>Synthesis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, X. W</creatorcontrib><creatorcontrib>Dong, S. M</creatorcontrib><creatorcontrib>Kan, Y. M</creatorcontrib><creatorcontrib>Zhou, H. J</creatorcontrib><creatorcontrib>Hu, J. B</creatorcontrib><creatorcontrib>Ding, Y. S</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, X. W</au><au>Dong, S. M</au><au>Kan, Y. M</au><au>Zhou, H. J</au><au>Hu, J. B</au><au>Ding, Y. S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of glycerine addition on the synthesis of boron carbide from condensed boric acid-polyvinyl alcohol precursor</atitle><jtitle>RSC advances</jtitle><date>2016-01-01</date><risdate>2016</risdate><volume>6</volume><issue>11</issue><spage>9338</spage><epage>9343</epage><pages>9338-9343</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>Boron carbide (B
4
C) powder was synthesized by heating a gel precursor with pyrolysis and carbothermal processes. The gel precursor was prepared by the condensation reaction of boric acid (H
3
BO
3
) and polyvinyl alcohol (PVA) at a weight ratio of 1/2 with the addition of various amounts of glycerine. The effects of glycerine addition on the synthesis of B
4
C powder were studied. It was observed that glycerine could promote the condensation reaction and resulted in a pyrolyzed precursor with a much finer distribution of B
2
O
3
in the carbon matrix. This led to a significant reduction of residual free carbon in the B
4
C powder. Moreover, the morphology of the B
4
C powder was also found to be closely related to the glycerine addition.
Boron carbide (B
4
C) powder was synthesized by heating a gel precursor with pyrolysis and carbothermal processes.</abstract><doi>10.1039/c5ra23303h</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2046-2069 |
| ispartof | RSC advances, 2016-01, Vol.6 (11), p.9338-9343 |
| issn | 2046-2069 2046-2069 |
| language | eng |
| recordid | cdi_crossref_primary_10_1039_C5RA23303H |
| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Boric acids Boron carbide Carbon Condensation Polyvinyl alcohols Precursors Pyrolysis Synthesis |
| title | Effect of glycerine addition on the synthesis of boron carbide from condensed boric acid-polyvinyl alcohol precursor |
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