Al2O3–TiO2/ZrO2–SiO2 based porous ceramics from particle-stabilized wet foam
Abstract The porous ceramics based on Al2O3–TiO2/ZrO2–SiO2 from particle-stabilized wet foam by direct foaming were discussed. The initial Al2O3–TiO2 suspension was prepared by adding TiO2 suspension to partially hydrophobized colloidal Al2O3 suspension with equimolar amount, to form Al2TiO5 on sint...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2017-06-01
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| Series: | Journal of Advanced Ceramics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s40145-017-0225-5 |
| _version_ | 1797708103109574656 |
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| author | Bijay Basnet Naboneeta Sarkar Jung Gyu Park Sangram Mazumder Ik Jin Kim |
| author_facet | Bijay Basnet Naboneeta Sarkar Jung Gyu Park Sangram Mazumder Ik Jin Kim |
| author_sort | Bijay Basnet |
| collection | DOAJ |
| description | Abstract The porous ceramics based on Al2O3–TiO2/ZrO2–SiO2 from particle-stabilized wet foam by direct foaming were discussed. The initial Al2O3–TiO2 suspension was prepared by adding TiO2 suspension to partially hydrophobized colloidal Al2O3 suspension with equimolar amount, to form Al2TiO5 on sintering. The secondary ZrO2–SiO2 suspension was prepared using the equimolar composition, and to obtain ZrSiO4, ZrTiO4, and mullite phases in the sintered samples, the secondary suspension was blended into the initial suspension at 0, 10, 20, 30, and 50 vol%. The wet foam exhibited an air content up to 87%, Laplace pressure from 1.38 to 2.23 mPa, and higher adsorption free energy at the interface of approximately 5.8×108 to 7.5×108 J resulting an outstanding foam stability of 87%. The final suspension was foamed, and the wet foam was sintered from 1400 to 1600 °C for 1 h. The porous ceramics with pore size from 150 to 400 μm on average were obtained. The phase identification was accomplished using X-ray diffraction (XRD), differential thermal analysis (DTA), and thermogravimetric analysis (TGA), and microstructural analysis was performed using field emission scanning electron microscopy (FESEM). |
| first_indexed | 2024-03-12T06:16:26Z |
| format | Article |
| id | doaj.art-1f7f5c96217c49cf86527e09e67fbad2 |
| institution | Directory Open Access Journal |
| issn | 2226-4108 2227-8508 |
| language | English |
| last_indexed | 2024-03-12T06:16:26Z |
| publishDate | 2017-06-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Advanced Ceramics |
| spelling | doaj.art-1f7f5c96217c49cf86527e09e67fbad22023-09-03T02:30:50ZengTsinghua University PressJournal of Advanced Ceramics2226-41082227-85082017-06-016212913810.1007/s40145-017-0225-5Al2O3–TiO2/ZrO2–SiO2 based porous ceramics from particle-stabilized wet foamBijay Basnet0Naboneeta Sarkar1Jung Gyu Park2Sangram Mazumder3Ik Jin Kim4Institute of Processing and Application of Inorganic Materials (PAIM), Hanseo UniversitySchool of Mechanical and Materials Engineering, Washington State University PullmanInstitute of Processing and Application of Inorganic Materials (PAIM), Hanseo UniversityInstitute of Processing and Application of Inorganic Materials (PAIM), Hanseo UniversityInstitute of Processing and Application of Inorganic Materials (PAIM), Hanseo UniversityAbstract The porous ceramics based on Al2O3–TiO2/ZrO2–SiO2 from particle-stabilized wet foam by direct foaming were discussed. The initial Al2O3–TiO2 suspension was prepared by adding TiO2 suspension to partially hydrophobized colloidal Al2O3 suspension with equimolar amount, to form Al2TiO5 on sintering. The secondary ZrO2–SiO2 suspension was prepared using the equimolar composition, and to obtain ZrSiO4, ZrTiO4, and mullite phases in the sintered samples, the secondary suspension was blended into the initial suspension at 0, 10, 20, 30, and 50 vol%. The wet foam exhibited an air content up to 87%, Laplace pressure from 1.38 to 2.23 mPa, and higher adsorption free energy at the interface of approximately 5.8×108 to 7.5×108 J resulting an outstanding foam stability of 87%. The final suspension was foamed, and the wet foam was sintered from 1400 to 1600 °C for 1 h. The porous ceramics with pore size from 150 to 400 μm on average were obtained. The phase identification was accomplished using X-ray diffraction (XRD), differential thermal analysis (DTA), and thermogravimetric analysis (TGA), and microstructural analysis was performed using field emission scanning electron microscopy (FESEM).http://link.springer.com/article/10.1007/s40145-017-0225-5Al2TiO5direct foamingLaplace pressureadsorption free energyporous ceramics |
| spellingShingle | Bijay Basnet Naboneeta Sarkar Jung Gyu Park Sangram Mazumder Ik Jin Kim Al2O3–TiO2/ZrO2–SiO2 based porous ceramics from particle-stabilized wet foam Journal of Advanced Ceramics Al2TiO5 direct foaming Laplace pressure adsorption free energy porous ceramics |
| title | Al2O3–TiO2/ZrO2–SiO2 based porous ceramics from particle-stabilized wet foam |
| title_full | Al2O3–TiO2/ZrO2–SiO2 based porous ceramics from particle-stabilized wet foam |
| title_fullStr | Al2O3–TiO2/ZrO2–SiO2 based porous ceramics from particle-stabilized wet foam |
| title_full_unstemmed | Al2O3–TiO2/ZrO2–SiO2 based porous ceramics from particle-stabilized wet foam |
| title_short | Al2O3–TiO2/ZrO2–SiO2 based porous ceramics from particle-stabilized wet foam |
| title_sort | al2o3 tio2 zro2 sio2 based porous ceramics from particle stabilized wet foam |
| topic | Al2TiO5 direct foaming Laplace pressure adsorption free energy porous ceramics |
| url | http://link.springer.com/article/10.1007/s40145-017-0225-5 |
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