Composite Ceramics in the Na<sub>2</sub>O–CaO–SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub> System Obtained from Pastes including Hydroxyapatite and an Aqueous Solution of Sodium Silicate
The new approach to obtaining ceramic materials in the Na<sub>2</sub>O–CaO–SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub> system based on the binder—an aqueous solution of sodium silicate and filler—hydroxyapatite was shown in current research. After heat...
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MDPI AG
2022-09-01
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| Series: | Ceramics |
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| Online Access: | https://www.mdpi.com/2571-6131/5/3/41 |
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| author | Maksim Kaimonov Tatiana Safronova Tatiana Shatalova Yaroslav Filippov Irina Tikhomirova Nikollay Sergeev |
| author_facet | Maksim Kaimonov Tatiana Safronova Tatiana Shatalova Yaroslav Filippov Irina Tikhomirova Nikollay Sergeev |
| author_sort | Maksim Kaimonov |
| collection | DOAJ |
| description | The new approach to obtaining ceramic materials in the Na<sub>2</sub>O–CaO–SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub> system based on the binder—an aqueous solution of sodium silicate and filler—hydroxyapatite was shown in current research. After heat treatment at 500 °C and 700 °C, the ceramic samples included non-reacted hydroxyapatite Ca<sub>10</sub>(PO<sub>4</sub>)<sub>6</sub>(OH)<sub>2</sub>, β-rhenanite β-NaCaPO<sub>4</sub> and sodium calcium silicophosphate Na<sub>2</sub>Ca<sub>4</sub>(PO<sub>4</sub>)<sub>2</sub>SiO<sub>4</sub>. An increase in temperature to 900 °C and 1100 °C allowed to obtain ceramic materials with the following phases: devitrite Na<sub>2</sub>Ca<sub>3</sub>Si<sub>6</sub>O<sub>16</sub>, β-rhenanite β-NaCaPO<sub>4</sub>, β-wollastonite β-CaSiO<sub>3</sub>, and silicon dioxide SiO<sub>2</sub>. The strength of ceramic samples rose with increasing temperature from ≈7.0 MPa (bending) and ≈7.2 MPa (compression) at 500 °C to ≈9.5 MPa (bending) and ≈31.6 MPa (compression) at 1100 °C. At the same time, the apparent density decreased from 1.71 g/cm<sup>3</sup> to 1.15 g/cm<sup>3</sup>. The top of the compressive strength equal to 31.6 MPa was observed when the apparent density was 1.15 g/cm<sup>3</sup>. Obtained ceramics consisted of biocompatible phases, widely studied in the literature; thus, it confirms the possibility of using an aqueous solution of sodium silicate in medical materials science. |
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| institution | Directory Open Access Journal |
| issn | 2571-6131 |
| language | English |
| last_indexed | 2024-03-10T00:25:37Z |
| publishDate | 2022-09-01 |
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| spelling | doaj.art-5468daf50dd442feab2bae8624859aa82023-11-23T15:34:57ZengMDPI AGCeramics2571-61312022-09-015355056110.3390/ceramics5030041Composite Ceramics in the Na<sub>2</sub>O–CaO–SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub> System Obtained from Pastes including Hydroxyapatite and an Aqueous Solution of Sodium SilicateMaksim Kaimonov0Tatiana Safronova1Tatiana Shatalova2Yaroslav Filippov3Irina Tikhomirova4Nikollay Sergeev5Department of Materials Science, Lomonosov Moscow State University, Building, 73, Leninskie Gory, 1, 119991 Moscow, RussiaDepartment of Materials Science, Lomonosov Moscow State University, Building, 73, Leninskie Gory, 1, 119991 Moscow, RussiaDepartment of Materials Science, Lomonosov Moscow State University, Building, 73, Leninskie Gory, 1, 119991 Moscow, RussiaDepartment of Materials Science, Lomonosov Moscow State University, Building, 73, Leninskie Gory, 1, 119991 Moscow, RussiaDepartment of General Technology of Silicates, Mendeleev University of Chemical Technology, Building, 1, Geroyev Panfilovtsev, 20, 125480 Moscow, RussiaThe Kizhner Research Center, National Research Tomsk Polytechnic University, Building, 2, Lenin Ave, 43a, 634050 Tomsk, RussiaThe new approach to obtaining ceramic materials in the Na<sub>2</sub>O–CaO–SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub> system based on the binder—an aqueous solution of sodium silicate and filler—hydroxyapatite was shown in current research. After heat treatment at 500 °C and 700 °C, the ceramic samples included non-reacted hydroxyapatite Ca<sub>10</sub>(PO<sub>4</sub>)<sub>6</sub>(OH)<sub>2</sub>, β-rhenanite β-NaCaPO<sub>4</sub> and sodium calcium silicophosphate Na<sub>2</sub>Ca<sub>4</sub>(PO<sub>4</sub>)<sub>2</sub>SiO<sub>4</sub>. An increase in temperature to 900 °C and 1100 °C allowed to obtain ceramic materials with the following phases: devitrite Na<sub>2</sub>Ca<sub>3</sub>Si<sub>6</sub>O<sub>16</sub>, β-rhenanite β-NaCaPO<sub>4</sub>, β-wollastonite β-CaSiO<sub>3</sub>, and silicon dioxide SiO<sub>2</sub>. The strength of ceramic samples rose with increasing temperature from ≈7.0 MPa (bending) and ≈7.2 MPa (compression) at 500 °C to ≈9.5 MPa (bending) and ≈31.6 MPa (compression) at 1100 °C. At the same time, the apparent density decreased from 1.71 g/cm<sup>3</sup> to 1.15 g/cm<sup>3</sup>. The top of the compressive strength equal to 31.6 MPa was observed when the apparent density was 1.15 g/cm<sup>3</sup>. Obtained ceramics consisted of biocompatible phases, widely studied in the literature; thus, it confirms the possibility of using an aqueous solution of sodium silicate in medical materials science.https://www.mdpi.com/2571-6131/5/3/41hydroxyapatiteaqueous solution of sodium silicatepastespre-ceramic samplesceramicscomposites |
| spellingShingle | Maksim Kaimonov Tatiana Safronova Tatiana Shatalova Yaroslav Filippov Irina Tikhomirova Nikollay Sergeev Composite Ceramics in the Na<sub>2</sub>O–CaO–SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub> System Obtained from Pastes including Hydroxyapatite and an Aqueous Solution of Sodium Silicate Ceramics hydroxyapatite aqueous solution of sodium silicate pastes pre-ceramic samples ceramics composites |
| title | Composite Ceramics in the Na<sub>2</sub>O–CaO–SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub> System Obtained from Pastes including Hydroxyapatite and an Aqueous Solution of Sodium Silicate |
| title_full | Composite Ceramics in the Na<sub>2</sub>O–CaO–SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub> System Obtained from Pastes including Hydroxyapatite and an Aqueous Solution of Sodium Silicate |
| title_fullStr | Composite Ceramics in the Na<sub>2</sub>O–CaO–SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub> System Obtained from Pastes including Hydroxyapatite and an Aqueous Solution of Sodium Silicate |
| title_full_unstemmed | Composite Ceramics in the Na<sub>2</sub>O–CaO–SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub> System Obtained from Pastes including Hydroxyapatite and an Aqueous Solution of Sodium Silicate |
| title_short | Composite Ceramics in the Na<sub>2</sub>O–CaO–SiO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub> System Obtained from Pastes including Hydroxyapatite and an Aqueous Solution of Sodium Silicate |
| title_sort | composite ceramics in the na sub 2 sub o cao sio sub 2 sub p sub 2 sub o sub 5 sub system obtained from pastes including hydroxyapatite and an aqueous solution of sodium silicate |
| topic | hydroxyapatite aqueous solution of sodium silicate pastes pre-ceramic samples ceramics composites |
| url | https://www.mdpi.com/2571-6131/5/3/41 |
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