The effects of silica addition on the structural, electrical and mechanical characteristics of MgAl2O4 spinel ceramic phase
Joint Authors
Muhammad, Nadhir Ibrahim
al-Hilli, Muzaffar Fuad Jamil
Source
Issue
Vol. 16, Issue 37 (31 Aug. 2018), pp.156-165, 10 p.
Publisher
University of Baghdad College of Science
Publication Date
2018-08-31
Country of Publication
Iraq
No. of Pages
10
Main Subjects
Abstract EN
The ceramic compound Mg1-xSixAl2O4 (x= 0, 0.1, 0.2, 0.3, 0.4) was prepared from nano powder of Al2O3 and MgO doped with Nano powder of SiO2 at different molar ratios.
The specimens were prepared by standard chemical solid reaction technique and sintered at 1450 oC.
Structure of the specimens was analyzed by using X-ray diffraction (XRD).
The X-ray patterns of the specimens showed the formation of pure simple cubic spinel structure MgAl2O4 phase with space group of ̅ .
The average grain size and surface topology were studied by atomic force microscopy.
The results showed that the average grain size was about 73-90 nm.
The DC electrical properties of the specimen were measured.
The apparent density was found to increase and the porosity and water absorption were found to decrease with increase of Si addition.
Mechanical properties were characterized by Vicker’s micro hardness and Brazilian fracture test to measure the fracture toughness of the samples.
The micro hardness decreased with Si addition increase.
Fracture toughness increased with the increase in Si addition.
American Psychological Association (APA)
al-Hilli, Muzaffar Fuad Jamil& Muhammad, Nadhir Ibrahim. 2018. The effects of silica addition on the structural, electrical and mechanical characteristics of MgAl2O4 spinel ceramic phase. Iraqi Journal of Physics،Vol. 16, no. 37, pp.156-165.
https://search.emarefa.net/detail/BIM-843337
Modern Language Association (MLA)
al-Hilli, Muzaffar Fuad Jamil& Muhammad, Nadhir Ibrahim. The effects of silica addition on the structural, electrical and mechanical characteristics of MgAl2O4 spinel ceramic phase. Iraqi Journal of Physics Vol. 16, no. 37 (Aug. 2018), pp.156-165.
https://search.emarefa.net/detail/BIM-843337
American Medical Association (AMA)
al-Hilli, Muzaffar Fuad Jamil& Muhammad, Nadhir Ibrahim. The effects of silica addition on the structural, electrical and mechanical characteristics of MgAl2O4 spinel ceramic phase. Iraqi Journal of Physics. 2018. Vol. 16, no. 37, pp.156-165.
https://search.emarefa.net/detail/BIM-843337
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 165
Record ID
BIM-843337