Preparation and Stabilization of Monoclinic Zirconia by Yttria through Mechanical Alloying
eldesouky, W., Abd El_Kareem, A., abd el-aziz, H., mosa, E. (2023). Preparation and Stabilization of Monoclinic Zirconia by Yttria through Mechanical Alloying. EKB Journal Management System, 56(3), 166-174. doi: 10.21608/ajnsa.2022.161293.1634
wagih s eldesouky; Ahmed Abd El_Kareem; hussein mohamed abd el-aziz; eisa salem mosa. "Preparation and Stabilization of Monoclinic Zirconia by Yttria through Mechanical Alloying". EKB Journal Management System, 56, 3, 2023, 166-174. doi: 10.21608/ajnsa.2022.161293.1634
eldesouky, W., Abd El_Kareem, A., abd el-aziz, H., mosa, E. (2023). 'Preparation and Stabilization of Monoclinic Zirconia by Yttria through Mechanical Alloying', EKB Journal Management System, 56(3), pp. 166-174. doi: 10.21608/ajnsa.2022.161293.1634
eldesouky, W., Abd El_Kareem, A., abd el-aziz, H., mosa, E. Preparation and Stabilization of Monoclinic Zirconia by Yttria through Mechanical Alloying. EKB Journal Management System, 2023; 56(3): 166-174. doi: 10.21608/ajnsa.2022.161293.1634

Preparation and Stabilization of Monoclinic Zirconia by Yttria through Mechanical Alloying

Arab Journal of Nuclear Sciences and Applications
Volume 56, Issue 3, April 2023, Page 166-174  XML PDF (1.18 MB)
Document Type: Original Article
DOI: 10.21608/ajnsa.2022.161293.1634
View on SCiNiTO View on SCiNiTO
Authors
wagih s eldesouky email 1; Ahmed Abd El_Kareem2; hussein mohamed abd el-aziz3; eisa salem mosa4
1nuclear materials authority, Cairo, Egypt
2Nuclear Material Authority, Cairo, Egypt
3mining and petroleum engineering department, faculty of engineering, al azhar university
4mining and petroleum department, faculty of engineering, al azhar university
Abstract
Yttria stabilized zirconia is a vital material for a variety of high-tech industrial applications. Fully stabilized zirconia is an excellent material for manufacturing of solid electrolyte for solid oxide fuel cell. In the present study, high purity zirconia was successfully synthesized from Egyptian zircon. The produced zirconia was subsequently fully stabilized by 10 mol% yttria via mechanical alloying. Mechanical alloying was conducted in a planetary ball mill with; stainless steel milling assembly, rotation speed (350 rpm), and ball to powder weight ratio of 10. The effect of milling time (up to 32 h) on phase transformation was studied. Characterization of as prepared zirconia and milled samples was conducted by x-ray diffraction, scanning electron microscopy, and energy dispersive x-ray analysis. The obtained results revealed that, crystal structure of prepared zirconia is monoclinic. The degree of stabilization and the level of contamination increase gradually with the course of milling. Under described conditions, the required time for full stabilization was 32 h. The produced powder is nanocrystalline (13.7 nm) with submicron particle size.
Keywords
Zirconia; Alkali fusion; Yttria stabilized zirconia; Mechanical alloying; Phase transformation
Statistics
Article View: 281
PDF Download: 190