[1] A. Azhar, and L. Chun Choong, “Effects of Cr2O3 Addition on the Mechanical Properties, Microstructure and Wear Performance of Zirconia Toughened-Alumina (ZTA) CuttingInserts”, Journal of Alloys and Compounds, Vol. 513, PP. 91 – 96, (2012).
[2] D. Casellas, “Fracture Toughness of Alumina and ZTACeramics: Microstructural Coarsening Effects”, Journal of Materials Processing Technology, Vol. 143-144, PP. 148 – 152, (2003).
[3] N.A. Rejab, and A. Azhar, “The Relationship between Microstructure and Fracture Toughness of Zirconia Toughened Alumina (ZTA) Added With MgO and CeO2”, Intertional Journal of Refractory Metals and Hard Materials, Vol. 41, PP. 522 – 530, (2013).
[4] N.A. Rejab, and A. Azhar, “The Effects of CeO2 Addition on the Physical, Microstructural and Mechanical Properties of Yttria Stabilized Zirconia Toughened Alumina (ZTA)”, Intertional Journal of Refractory Metals and Hard Materials, Vol. 36, PP. 162 – 166, (2013).
[5] C.,Suryanarayana “Mechanical alloying and milling”, Progress in Materials Science., No. 46, 2001, PP. 1-184
[6] A.M. Hassan, and S.M. Naga, “Toughening and Strengthening of Nb2O5 Doped Zirconia/Alumina (ZTA) Composites”, Intertional Journal of Refractory Metals and Hard Materials, Vol. 48, PP. 338-345, (2015).
[8] A. Azhar and L.Chun Choong, ″Effects of MgOAddition on the Mechanical Properties, Microstructure and Wear Performance of Zirconia Toughened-Alumina(ZTA) CuttingInserts″, Journal of Alloys and Compounds, Vol. 513, pp. 91– 96, (2012).
[9] M. Hanisah, A. Azhar, ″ Effect of Cr2O3-TiO2 Addition on the Physical Properties of Zirconia Toughened Alumina″, Materials Science Forum, Vol. 840, PP. 34-38, (2016).
[10] Y.F. Hsu, S.F. Wang, Y.R. Wang, S.C. Chen, “Effect of Niobium Doping on the Densification and Grain Growth in Alumina”, Ceramics International., Vol. 34, PP. 1183–1187, (2008).
[11] A.M. Hassan, M. Awaad, S.M. Naga, “Densification Behavior and Mechanical Properties of Niobium-Oxide-Doped Alumina Ceramics”, Journal of Ceramis Science and Technology., Vol. 05, No. 01, PP. 51-56, (2014).
[12] P.d.E. Louis Winnubst, and T.H. P. Leuwerink “Effect of Calcination on the Sintering of Gel-
Derived, Zirconia-Toughened Alumina”, Journal of American Ceramic Society, Vol. 77, PP. 2376-2380, (1994).
[13] R. Gopi Chandran, and K. C. Patil,“ Combustion Synthesis and Properties of
Mullite-Zirconia Composites”, Journal of Materials Science, Vol. 31, PP. 5773-5779, (1996).
[14] R. C. Garvie, And P. Nicholson,“ Phase Analysis in Zirconia Systems”, Journal of The American Ceramic Society, Vol. 55, PP. 303-305, (1972).
[15] G. K. LAYDEN, “The System AI2O3-N b2O5”, Journal of The American Ceramic Society-Discussions and Notes, Vol. 46, No. 10, PP.506, (1963).
[17] Y. Ai
Wilson Nunes Dos Santos, F. He, B. Liang, “Mechanical properties of Nb
2O
5-Al
2O
3 ceramics prepared by microwave sintering”, Advanced Materials Research, Vol. 338, PP. 120-123, (2011).
[18] D.J. kim, H.J. Jung, D.H. Cho, “Phase Transformations of Y2O3 and Nb2O5 Doped Tetragonal Zirconia During Low Temperature Aging in Air”, Solid State Ionics, Vol. 80, PP. 67-73, (1995).
[19] Lange, F. F., “Transformation Toughening: part 4 Fabrication, Fracture Toughness and Strength of Al2O3–ZrO2 Composites”, Journal of Materials science., Vol. 17, PP. 247–254,(1982).
[21] L. Zhang, A. M. Ferrari, C. Leonelli, T. Manfredini, “Reaction Mechanism in Alumina/Chromia (Al2O3–Cr2O3) Solid Solutions Obtained by Coprecipitation”, Journal of American Ceramic Society, Vol. 83, No. 8, PP. 3036–3040, (2000).
[23] F. Guo, P. Xiao, “Effect of Fe2O3 Doping on Sintering of Yttria-Stabilized Zirconia”, Journal of the European Ceramic Society, Vol. 32, PP. 4157–4164, (2012).
[24] Q. Dong, Z.H. Du, T.S. Zhang, J. Lu, X.C. Song, J. Ma, “Sintering and Ionic Conductivity of 8YSZ and CGO10 Electrolytes With Small Addition of Fe2O3: A Comparative Study”, International Journal of Hydrogen Energy, Vol. 34, PP. 7903–7909, (2009).
[25] M.M.R. Boutz, A.J.A. Winnubst, F.H. Hartgers, A.J. Burggraaf, “Effect of Additives on Densification and Deformation of Tetragonal Zirconia”, Journal of Materials Science, Vol. 29, PP. 5374–5382, (1994).
[26] W.H. Rhodes, R.E. Carter, “Cationic Self-Diffusion In Calcia-Stabilized Zirconia”, Journal of American Ceramic Society, Vol. 49, No. 5, PP. 244–249, (1966).
[27] R.J.D. Tilley, “Principles and Applications of Chemical Defects”, Stanley Thornes Ltd, Cheltenham, U.K., (1998).
[28] S.M. Vidyavathy, and V.Kamaraj, “Microwave Sintering of Niobium Co-doped Yttria Stabilized Zirconia”, Modern Applied Science, Vol. 3, No. 6, PP. 102–105, (2009).
[29] B.F. Pedersen, “The Crystal Structure of Aluminum Niobium Oxide (AlNbO4) ”, Acta Chemica Scandinavica, Vol. 16, PP. 421 – 430, (1962).