Multinuclear magnetic resonance studies of borosilicate glasses for use in glass ionomer cements : incorporation of CaO and Al2O3
Calcium and aluminium incorporation into a sodium borosilicate glass with base composition 0.30Na2O : 0.46SiO2 : 0.24B2O3 was investigated. All the samples were tested for glass-ionomer cement formation. Glasses in the Cx system did not yield sustainable cements on mixing at glass to liquid ratios o...
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| Veröffentlicht in: | Journal of materials chemistry 2006-01, Vol.16 (24), p.2364-2373 |
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| creator | PIRES, R. A ABRAHAMS, I NUNES, T. G HAWKES, G. E |
| description | Calcium and aluminium incorporation into a sodium borosilicate glass with base composition 0.30Na2O : 0.46SiO2 : 0.24B2O3 was investigated. All the samples were tested for glass-ionomer cement formation. Glasses in the Cx system did not yield sustainable cements on mixing at glass to liquid ratios of 2.4 : 1. The glasses of system Ax were unmixable at glass to liquid ratios between 2.4 : 1 and 1.5 : 1, with the exception of the sample with composition x = 0.3, which was mixable at a glass to liquid ratio of 2.4 : 1, producing a cement with an average compressive strength of 69.3 MPa (sigma = 6.1 MPa). 11B, 23Na, 27A1 and 29Si magic angle spinning nuclear magnetic resonance spectroscopy was used to characterize the structure of the glass and cement samples. The results showed that the calcium boroaluminosilicate glass compositions have the potential to be used as solid components in the preparation of glass-ionomer cement formulations. |
| doi_str_mv | 10.1039/b601593j |
| format | Article |
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A ; ABRAHAMS, I ; NUNES, T. G ; HAWKES, G. E</creator><creatorcontrib>PIRES, R. A ; ABRAHAMS, I ; NUNES, T. G ; HAWKES, G. E</creatorcontrib><description>Calcium and aluminium incorporation into a sodium borosilicate glass with base composition 0.30Na2O : 0.46SiO2 : 0.24B2O3 was investigated. All the samples were tested for glass-ionomer cement formation. Glasses in the Cx system did not yield sustainable cements on mixing at glass to liquid ratios of 2.4 : 1. The glasses of system Ax were unmixable at glass to liquid ratios between 2.4 : 1 and 1.5 : 1, with the exception of the sample with composition x = 0.3, which was mixable at a glass to liquid ratio of 2.4 : 1, producing a cement with an average compressive strength of 69.3 MPa (sigma = 6.1 MPa). 11B, 23Na, 27A1 and 29Si magic angle spinning nuclear magnetic resonance spectroscopy was used to characterize the structure of the glass and cement samples. 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The glasses of system Ax were unmixable at glass to liquid ratios between 2.4 : 1 and 1.5 : 1, with the exception of the sample with composition x = 0.3, which was mixable at a glass to liquid ratio of 2.4 : 1, producing a cement with an average compressive strength of 69.3 MPa (sigma = 6.1 MPa). 11B, 23Na, 27A1 and 29Si magic angle spinning nuclear magnetic resonance spectroscopy was used to characterize the structure of the glass and cement samples. The results showed that the calcium boroaluminosilicate glass compositions have the potential to be used as solid components in the preparation of glass-ionomer cement formulations.</description><subject>Cold working, work hardening; annealing, quenching, tempering, recovery, and recrystallization; textures</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Magnetic resonances and relaxations in condensed matter, mössbauer effect</subject><subject>Materials science</subject><subject>Nuclear magnetic resonance and relaxation</subject><subject>Physics</subject><subject>Treatment of materials and its effects on microstructure and properties</subject><issn>0959-9428</issn><issn>1364-5501</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNpFkE1r3DAQhkVIIJs00J-gS0svTvVhW1ZvYWmTwpa9JGczOzteFGRpq7EPPfaf18um5DTwPg8vzCvER63utbL-665VuvH29UKstG3rqmmUvhQr5Rtf-dp01-KG-VUprV3brMTfX3OcQpoxEhQ5wiHRFFAW4pwgIUme5n0glnmQu1wyhxgQJpKHCMxLPuQiZyYZ0jmSIac8UpFII6WJ5bcFYS7HXGBa2KloDVsJaS8fotnaD-JqgMh093ZvxcuP78_rp2qzffy5fthUaFU3VV7XGt1-aIcWwWvy7YAWGu3rnak7TwCu67BG5aipdedowQhOkd5Ba9DZW_H53Hss-fdMPPVjYKQYIVGeuTe-Md4Zs4hfziIu73KhoT-WMEL502vVnzbu_2-8qJ_eOoER4lCWyQK_-86r2ipj_wG7tn1w</recordid><startdate>20060101</startdate><enddate>20060101</enddate><creator>PIRES, R. 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A</creatorcontrib><creatorcontrib>ABRAHAMS, I</creatorcontrib><creatorcontrib>NUNES, T. G</creatorcontrib><creatorcontrib>HAWKES, G. E</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of materials chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>PIRES, R. A</au><au>ABRAHAMS, I</au><au>NUNES, T. G</au><au>HAWKES, G. E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Multinuclear magnetic resonance studies of borosilicate glasses for use in glass ionomer cements : incorporation of CaO and Al2O3</atitle><jtitle>Journal of materials chemistry</jtitle><date>2006-01-01</date><risdate>2006</risdate><volume>16</volume><issue>24</issue><spage>2364</spage><epage>2373</epage><pages>2364-2373</pages><issn>0959-9428</issn><eissn>1364-5501</eissn><abstract>Calcium and aluminium incorporation into a sodium borosilicate glass with base composition 0.30Na2O : 0.46SiO2 : 0.24B2O3 was investigated. All the samples were tested for glass-ionomer cement formation. Glasses in the Cx system did not yield sustainable cements on mixing at glass to liquid ratios of 2.4 : 1. The glasses of system Ax were unmixable at glass to liquid ratios between 2.4 : 1 and 1.5 : 1, with the exception of the sample with composition x = 0.3, which was mixable at a glass to liquid ratio of 2.4 : 1, producing a cement with an average compressive strength of 69.3 MPa (sigma = 6.1 MPa). 11B, 23Na, 27A1 and 29Si magic angle spinning nuclear magnetic resonance spectroscopy was used to characterize the structure of the glass and cement samples. The results showed that the calcium boroaluminosilicate glass compositions have the potential to be used as solid components in the preparation of glass-ionomer cement formulations.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/b601593j</doi><tpages>10</tpages></addata></record> |
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| source | Royal Society of Chemistry Journals Archive (1841-2007); Royal Society Of Chemistry Journals 2008- |
| subjects | Cold working, work hardening annealing, quenching, tempering, recovery, and recrystallization textures Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Magnetic resonances and relaxations in condensed matter, mössbauer effect Materials science Nuclear magnetic resonance and relaxation Physics Treatment of materials and its effects on microstructure and properties |
| title | Multinuclear magnetic resonance studies of borosilicate glasses for use in glass ionomer cements : incorporation of CaO and Al2O3 |
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