Fracture Toughness of Glass infiltrated (3Y-TZP/Al2O3) Composite
Five different 3 mol.% yttria-tetragonal zirconia polycrystals/alumina (3Y-TZP/Al2O3) -glass specimens have been fabricated by the glass infiltration method. graphite additives were added to the (3Y-TZP/20Wt.%Al2O3) to obtain porous structure. The ATZ (Alumina Toughened Zirconia) skeleton have prepa...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2021-03-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_168158_55c67a2383434cfe1e8dbea1b3f0ea72.pdf |
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| author | Sara N. Ibrahim Shihab A. Zaidan Mudhafar A. Mohammed |
| author_facet | Sara N. Ibrahim Shihab A. Zaidan Mudhafar A. Mohammed |
| author_sort | Sara N. Ibrahim |
| collection | DOAJ |
| description | Five different 3 mol.% yttria-tetragonal zirconia polycrystals/alumina (3Y-TZP/Al2O3) -glass specimens have been fabricated by the glass infiltration method. graphite additives were added to the (3Y-TZP/20Wt.%Al2O3) to obtain porous structure. The ATZ (Alumina Toughened Zirconia) skeleton have prepared by the normal compaction method. The specimen had been infiltrated by the glass (18Wt.% lithium hydroxide, 72 wt. % feldspar, and 10Wt.% nano Titanium oxide) at 1185ᵒC. Results showed that the porosity of (3Y-TZP/Al2O3) composite was increased while bulk density decreased with increasing graphite additives. The elastic modulus of (3Y-TZP/Al2O3)-glass was decreased (159-109GPa) with increasing the amount of glass infiltrated. Hardness was constant for all the specimens in value of (5.66 GPa), while increment of materials fracture toughening was due to the increasing the glass weight fraction, the kIc was lied between (0.53-1. 54MPa.m1/2). The glass infiltrated (3Y-TZP/Al2O3) process was successfully increased the fracture toughness by penetrated different amounts of glass into the (3Y-TZP/Al2O3) structure. |
| first_indexed | 2024-03-08T08:54:50Z |
| format | Article |
| id | doaj.art-d9cca5b89a334eb0b8a8c7871be86e4f |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T08:54:50Z |
| publishDate | 2021-03-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-d9cca5b89a334eb0b8a8c7871be86e4f2024-02-01T07:17:18ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582021-03-01391B14114910.30684/etj.v39i1B.1919168158Fracture Toughness of Glass infiltrated (3Y-TZP/Al2O3) CompositeSara N. Ibrahim0Shihab A. Zaidan1Mudhafar A. Mohammed2Department of Applied Sciences, University of Technology, Baghdad, Iraq, 102180@student.uotechnology.edu.iqDepartment of Applied Sciences, University of Technology, Baghdad, Iraq, 100160@uotechnology.edu.iqDepartment of Applied Sciences, University of Technology, Baghdad, Iraq, 100167@uotechnology.edu.iqFive different 3 mol.% yttria-tetragonal zirconia polycrystals/alumina (3Y-TZP/Al2O3) -glass specimens have been fabricated by the glass infiltration method. graphite additives were added to the (3Y-TZP/20Wt.%Al2O3) to obtain porous structure. The ATZ (Alumina Toughened Zirconia) skeleton have prepared by the normal compaction method. The specimen had been infiltrated by the glass (18Wt.% lithium hydroxide, 72 wt. % feldspar, and 10Wt.% nano Titanium oxide) at 1185ᵒC. Results showed that the porosity of (3Y-TZP/Al2O3) composite was increased while bulk density decreased with increasing graphite additives. The elastic modulus of (3Y-TZP/Al2O3)-glass was decreased (159-109GPa) with increasing the amount of glass infiltrated. Hardness was constant for all the specimens in value of (5.66 GPa), while increment of materials fracture toughening was due to the increasing the glass weight fraction, the kIc was lied between (0.53-1. 54MPa.m1/2). The glass infiltrated (3Y-TZP/Al2O3) process was successfully increased the fracture toughness by penetrated different amounts of glass into the (3Y-TZP/Al2O3) structure.https://etj.uotechnology.edu.iq/article_168158_55c67a2383434cfe1e8dbea1b3f0ea72.pdfatz-glass composite fracture toughness3y-tzpbrittleness index |
| spellingShingle | Sara N. Ibrahim Shihab A. Zaidan Mudhafar A. Mohammed Fracture Toughness of Glass infiltrated (3Y-TZP/Al2O3) Composite Engineering and Technology Journal atz-glass composite fracture toughness 3y-tzp brittleness index |
| title | Fracture Toughness of Glass infiltrated (3Y-TZP/Al2O3) Composite |
| title_full | Fracture Toughness of Glass infiltrated (3Y-TZP/Al2O3) Composite |
| title_fullStr | Fracture Toughness of Glass infiltrated (3Y-TZP/Al2O3) Composite |
| title_full_unstemmed | Fracture Toughness of Glass infiltrated (3Y-TZP/Al2O3) Composite |
| title_short | Fracture Toughness of Glass infiltrated (3Y-TZP/Al2O3) Composite |
| title_sort | fracture toughness of glass infiltrated 3y tzp al2o3 composite |
| topic | atz-glass composite fracture toughness 3y-tzp brittleness index |
| url | https://etj.uotechnology.edu.iq/article_168158_55c67a2383434cfe1e8dbea1b3f0ea72.pdf |
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