Evaluation of alumina reinforced oil fly ash composites prepared by spark plasma sintering
Source abstract
Abstract
Abstract The thermomechanical behavior of micro/nano‐alumina (Al 2 O 3 ) ceramics reinforced with 1‐5 wt.% of acid‐treated oil fly ash (OFA) was investigated. Composites were sintered using spark plasma sintering (SPS) technique at a temperature of 1400°C by applying a constant uniaxial pressure of 50 MPa. It was evaluated that the fracture toughness of micro‐ and nanosized composites improved in contrast with the monolithic alumina. Highest fracture toughness value of 4.85 MPam 1/2 was measured for the nanosized composite reinforced with 5 wt.% OFA. The thermal conductivity of the composites (nano‐/microsized) decreased with the increase in temperature. However, the addition of OFA (1‐5 wt.%) in nanosized alumina enhanced the thermal conductivity at an evaluated temperature. Furthermore, a minimum thermal expansion value of 6.17 ppm*K −1 was measured for nanosized Al 2 O 3 /5 wt.% OFA composite. Microstructural characterization of Al 2 O 3 ‐OFA composites was done by x‐ray diffraction and Raman spectroscopy. Oil fly ash particles were seen to be well dispersed within the alumina matrix. Moreover, the comparative analysis of the nano‐/microsized Al 2 O 3 /OFA composites shows that the mechanical and thermal properties were improved in nanosized alumina composites.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Concrete and Cement Materials Research · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Mechanical and Energy Engineering Department College of Engineering Imam Abdulrahman bin Faisal University Dammam Saudi Arabia
Department of Mechanical Engineering College of Electrical and Mechanical Engineering National University of Sciences and Technology Islamabad Pakistan
Faculty of Materials and Chemical Engineering Ghulam Ishaq Khan Institute of Engineering Sciences and Technology Khyber Pakhtunkhwa Pakistan
Center of Excellence in Nanotechnology King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia
Department of Nanoscience and Nanotechnology University of Siegen Siegen Germany
Department of Chemical Engineering University of Gujrat Gujrat Pakistan
Department of Mechanical Engineering Khalifa University of Science and Technology Abu Dhabi UAE
Funding
King Fahd University of Petroleum and Minerals
References (52)
Show source-provided references
1. 10.1016/j.ceramint.2018.09.00910.1016/j.ceramint.2018.09.009 ↗
2. 10.1111/jace.1317810.1111/jace.13178 ↗
3. 10.1021/cm035248c10.1021/cm035248c ↗
4. 10.1016/j.wear.2012.10.00610.1016/j.wear.2012.10.006 ↗
5. 10.1111/ijac.1267410.1111/ijac.12674 ↗
6. 10.1016/j.jmrt.2019.06.05010.1016/j.jmrt.2019.06.050 ↗
7. 10.1016/j.ceramint.2012.10.01210.1016/j.ceramint.2012.10.012 ↗
8. 10.1016/j.jallcom.2009.06.20410.1016/j.jallcom.2009.06.204 ↗
9. Computational design and development of alumina‐nickel droplet composites
10. 10.1016/j.ceramint.2017.05.32510.1016/j.ceramint.2017.05.325 ↗
11. 10.1016/j.ceramint.2008.02.01910.1016/j.ceramint.2008.02.019 ↗
12. 10.1016/j.msea.2008.10.02110.1016/j.msea.2008.10.021 ↗
13. 10.1016/j.ceramint.2016.08.01910.1016/j.ceramint.2016.08.019 ↗
14. 10.1016/j.msea.2017.07.02210.1016/j.msea.2017.07.022 ↗
15. Hardness and fracture toughness of alumina‐based Particulate Composites with zirconia and strontia additives
16. 10.1016/S1005-0302(12)60127-310.1016/S1005-0302(12)60127-3 ↗
17. Improvement of flexure strength and fracture toughness in alumina matrix composites reinforced with carbon nanotubes
18. 10.1016/j.ceramint.2013.01.04110.1016/j.ceramint.2013.01.041 ↗
19. 10.1016/j.jeurceramsoc.2009.09.03210.1016/j.jeurceramsoc.2009.09.032 ↗
20. 10.1016/S1005-0302(10)60090-410.1016/S1005-0302(10)60090-4 ↗
21. 10.1016/j.scriptamat.2005.06.01110.1016/j.scriptamat.2005.06.011 ↗
22. 10.1016/j.carbon.2003.12.04310.1016/j.carbon.2003.12.043 ↗
23. 10.1038/nature1145810.1038/nature11458 ↗
24. 10.1016/j.ceramint.2004.10.00210.1016/j.ceramint.2004.10.002 ↗
25. 10.1016/j.jmst.2014.08.00210.1016/j.jmst.2014.08.002 ↗
26. 10.1016/S1005-0302(11)60016-910.1016/S1005-0302(11)60016-9 ↗
27. 10.1016/j.compositesa.2008.10.00310.1016/j.compositesa.2008.10.003 ↗
28. 10.1016/j.jeurceramsoc.2017.02.02410.1016/j.jeurceramsoc.2017.02.024 ↗
29. 10.1016/j.jeurceramsoc.2017.03.02710.1016/j.jeurceramsoc.2017.03.027 ↗
30. 10.1016/j.msea.2013.04.02010.1016/j.msea.2013.04.020 ↗
31. 10.1016/j.jeurceramsoc.2011.05.04210.1016/j.jeurceramsoc.2011.05.042 ↗
32. 10.1016/j.carbon.2010.12.04210.1016/j.carbon.2010.12.042 ↗
33. 10.1016/j.jeurceramsoc.2012.07.00710.1016/j.jeurceramsoc.2012.07.007 ↗
34. 10.1016/j.conbuildmat.2014.07.04510.1016/j.conbuildmat.2014.07.045 ↗
35. 10.1007/s10965-011-9641-310.1007/s10965-011-9641-3 ↗
36. 10.1016/j.seppur.2004.03.00610.1016/j.seppur.2004.03.006 ↗
37. 10.1016/j.apsusc.2011.07.13610.1016/j.apsusc.2011.07.136 ↗
38. 10.1016/j.matchemphys.2011.06.04510.1016/j.matchemphys.2011.06.045 ↗
39. 10.1016/j.ceramint.2005.03.02110.1016/j.ceramint.2005.03.021 ↗
40. 10.1016/j.scriptamat.2007.06.00910.1016/j.scriptamat.2007.06.009 ↗
41. 10.1007/s10853-006-6555-210.1007/s10853-006-6555-2 ↗
42. 10.1111/j.1151-2916.2002.tb00381.x10.1111/j.1151-2916.2002.tb00381.x ↗
43. 10.1016/S1359-6462(02)00191-410.1016/S1359-6462(02)00191-4 ↗
44. Effect of processing on mechanically alloyed and spark plasma sintered Al‐alumina nanocomposites
45. 10.1016/j.ijrmhm.2018.05.01010.1016/j.ijrmhm.2018.05.010 ↗
46. 10.1016/j.ceramint.2017.10.20310.1016/j.ceramint.2017.10.203 ↗
47. 10.1016/j.cej.2016.06.00510.1016/j.cej.2016.06.005 ↗
48. 10.1016/j.carbon.2010.01.06310.1016/j.carbon.2010.01.063 ↗
49. 10.1016/j.materresbull.2012.09.06410.1016/j.materresbull.2012.09.064 ↗
50. 10.1016/j.actamat.2011.10.00210.1016/j.actamat.2011.10.002 ↗
51. 10.1016/j.jallcom.2017.09.03210.1016/j.jallcom.2017.09.032 ↗
52. 10.3390/nano912168210.3390/nano9121682 ↗