id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
iajs-810	Al.Mayaly, H. K.H.	Modeling of the Effect of MgO and ZrO2 on Sintering of Alumina	2017	10	.pdf	application/pdf	2079	108	69	SCI. VOL.24 (1) 2011 Table (2) lists the grain size rate cofficient and densification rate cofficient , the doping lowers both the densification and grain size rate cofficient respectively where the dopent particals may form barriers along the diffusion path and reduce the densification Conclusion The modeling technique shows that the calculated results using L 2 _Regression technique agrees with experimental results, and MgO-doped alumina impragnated with large pores have effective in inhibiting grain growth rate and increases the densification rate , while the effect of ZrO2 doped alumina was faster than MgO , ZrO2 doped samples have more effective in enhanced densification and inhibition the grain growth rate. [5] , second a large pore can be thermodynamically stable depending on the value of dihedral and pore size : grain size ratio (for a given dihedrol angle and pore size, there is a critical grain size above which the pore is unstable and can sinter ),while below where it is stable and can not sinter.	cache/iajs-810.pdf	txt/iajs-810.txt