Effect of talc and titania on the microstructure and mechanical properties of alumina ceramics
Source abstract
Abstract
Abstract Alumina (Al 2 O 3 ) ceramics were prepared with nucleating agent of titania (TiO 2 ) and fluxing agent of talc by the normal pressure sintering method. The effects of TiO 2 and talc on phase composition, microstructure, and mechanical properties of Al 2 O 3 ceramics, as well the strengthening and toughening mechanism were investigated. It was found that the introduction of TiO 2 could be favorable for mullite formation and the improved densification of ceramics, resulting in improved mechanical properties of ceramics as well. Ceramics possess the best comprehensive mechanical performance with fracture toughness of 3.69 MPa·m 1/2 and flexural strength of 255.9 MPa when 4 wt.% TiO 2 and 15 wt.% talc were added. Mineral bridges and nanocrystallites were found in the glass‐ceramics, which caused the deflection of cracks so that it strengthened the grain boundary and improved the mechanical properties of ceramics.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Recycling and utilization of industrial and municipal waste in materials production
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Marine Resource Utilization in South China Sea College of Materials & Chemical Engineering Hainan University Haikou China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Hainan Province
References (41)
Show source-provided references
1. 10.1111/j.1757-7861.2010.00083.x10.1111/j.1757-7861.2010.00083.x ↗
2. 10.1007/s10853-016-0454-y10.1007/s10853-016-0454-y ↗
3. 10.1016/j.ijrmhm.2014.10.01110.1016/j.ijrmhm.2014.10.011 ↗
4. 10.1016/j.jeurceramsoc.2014.06.03010.1016/j.jeurceramsoc.2014.06.030 ↗
5. 10.1016/S0272-8842(01)00077-310.1016/S0272-8842(01)00077-3 ↗
6. 10.1016/j.ceramint.2012.12.04910.1016/j.ceramint.2012.12.049 ↗
7. 10.1016/j.ceramint.2014.03.15310.1016/j.ceramint.2014.03.153 ↗
8. 10.1016/j.ceramint.2015.04.03810.1016/j.ceramint.2015.04.038 ↗
9. PletkaBJ PredebonWW StaehlerJM.High strength alumina and process for producing same. U.S. patent 5 352 643;1994.
10. 10.1007/s11669-004-0151-410.1007/s11669-004-0151-4 ↗
11. Lee WE · 1994
12. 10.1088/0022-3727/38/17/S0710.1088/0022-3727/38/17/S07 ↗
13. 10.1111/j.1551-2916.2007.02086.x10.1111/j.1551-2916.2007.02086.x ↗
14. 10.1016/j.ceramint.2005.04.00110.1016/j.ceramint.2005.04.001 ↗
15. 10.1016/j.ceramint.2016.07.21610.1016/j.ceramint.2016.07.216 ↗
16. Effect of talc dosage on properties of alumina ceramic
17. 10.1016/j.ceramint.2014.09.03010.1016/j.ceramint.2014.09.030 ↗
18. 10.1016/j.ceramint.2010.09.00910.1016/j.ceramint.2010.09.009 ↗
19. 10.1021/cg100399t10.1021/cg100399t ↗
20. 10.2298/SOS1203341B10.2298/SOS1203341B ↗
21. 10.1590/S0366-6913201300030002110.1590/S0366-69132013000300021 ↗
22. 10.1016/j.ceramint.2015.04.16410.1016/j.ceramint.2015.04.164 ↗
23. 10.1016/j.ceramint.2015.04.13210.1016/j.ceramint.2015.04.132 ↗
24. 10.1111/j.1551-2916.2007.01557.x10.1111/j.1551-2916.2007.01557.x ↗
25. 10.1007/978-3-662-04350-910.1007/978-3-662-04350-9 ↗
26. ASTM E399.Standard test method for plane strain fracture toughness of metallic materials.Annual Book of ASTM Standards V.03.01.ASTM Philadelphia USA 1991.
27. 10.1016/0040-6031(84)87165-810.1016/0040-6031(84)87165-8 ↗
28. Thermogravimetric study of the dehydration kinetics of talc
29. Phase transformation in the alumina‐titania system during flash sintering experiments
30. 10.12693/APhysPolA.127.103510.12693/APhysPolA.127.1035 ↗
31. 10.1016/0955-2219(96)00023-410.1016/0955-2219(96)00023-4 ↗
32. 10.1016/j.jallcom.2010.07.06910.1016/j.jallcom.2010.07.069 ↗
33. 10.1016/S1005-0302(12)60182-010.1016/S1005-0302(12)60182-0 ↗
34. Influence of small amount of talc on the sintering and mechanical properties of high‐alumina ceramics
35. 10.1016/j.jsb.2011.09.01110.1016/j.jsb.2011.09.011 ↗
36. 10.1039/C4RA04902K10.1039/C4RA04902K ↗
37. 10.1179/1743676114Y.000000016110.1179/1743676114Y.0000000161 ↗
38. 10.1016/j.actamat.2006.02.03210.1016/j.actamat.2006.02.032 ↗
39. 10.1016/j.solidstatesciences.2015.01.00910.1016/j.solidstatesciences.2015.01.009 ↗
40. 10.1016/j.surfcoat.2009.02.01610.1016/j.surfcoat.2009.02.016 ↗
41. 10.1002/jbm.a.1003010.1002/jbm.a.10030 ↗