TY  - JOUR
KW  - Alumina; Aluminum oxide; Composite materials; Hardness; Microstructure; Mullite; Scanning electron microscopy; Silica; Sintered alumina; Sintering; X ray diffraction
KW  -  Hardness values; Liquid-phase reaction; Oxide ceramics; Pressure-less sintering; Silica content; XRD peaks
KW  -  Zirconia
IS  - 1
TI  - Processing and characterisation of Al2O3-SiO 2-ZrO2 composite material
N2  - An oxide ceramic based composite of Al2O3-SiO 2-ZrO2 (ASZ) system was developed and investigated using a pressureless sintering route. The effect of compositions of each component on the microstructure, density, and hardness properties were studied. X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to investigate the phase composition of ASZ composite system. The results showed that with varying ZrO2 content, keeping the silica content constant and the alumina as a matrix, the densification tends to decrease as the content of zirconia increases starting from 10 wt.  of the composition. XRD peaks suggested a fully developed alumina, mullite and zirconia phases formed by the solid and liquid phase reaction sintering. The experimental results reveal also the hardness value was in the range of 10-12.5 GPa, the highest value for a composition of 80wt. Al2O3-10wt. SiO2-10wt. ZrO2. Copyright © 2012 Inderscience Enterprises Ltd.
SN  - 17418410
EP  - 76
ID  - scholars3198
AV  - none
PB  - Inderscience Publishers
SP  - 64
Y1  - 2012///
N1  - cited By 6
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84858635371&doi=10.1504%2fIJMMP.2012.045803&partnerID=40&md5=3559c036b2210e1cc30e955a1ea4621a
A1  - Asmelash, G.M.
A1  - Mamat, O.
JF  - International Journal of Microstructure and Materials Properties
VL  - 7
ER  -