Yazar "Ada, K." için listeleme
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Applications of the zero-order reaction rate model and transition state theory on the intra-particle sintering of an alumina powder by using surface area measurements
Sarikaya, Y.; Ada, K.; Onal, M. (Elsevier Science Sa, 2007)The cylindrical compacts with the diameter of 14mm were prepared under 32MPa of an alumina powder having agglomeration degree of 80% and maximum surface area of 81 m(2) g(-1) after calcination at 900 degrees C for 2 h. ... -
The effect of Al3+ concentration on the properties of alumina powders obtained by reaction between aluminium sulphate and urea in boiling aqueous solution
Sarikaya, Y.; Ada, K.; Alemdaroğlu, T.; Bozdoğan, I. (Elsevier Sci Ltd, 2002)Homogeneous precipitation of alumina precursors was carried out in boiling aqueous solutions that contained excess urea and 0.010 0.200 M Al3+. The obtained precursor precipitates were dried for 2 h at 100 C to yield ... -
An indirect thermodynamic model developed for initial stage sintering of an alumina compacts by using porosity measurements
Sarikaya, Y.; Onal, M.; Ada, K. (Springer, 2012)The specific micro- and mesopore volumes (V) of alumina compacts fired between 900 and 1250 A degrees C for 2 h were determined from nitrogen adsorption/desorption data. The V value was taken as a sintering equilibrium ... -
Investigation of the intra-particle sintering kinetics of a mainly agglomerated alumina powder by using surface area reduction
Ada, K.; Onal, M.; Sarikaya, Y. (Elsevier, 2006)An alumina precursor was prepared by the aluminium sulphate (0.20 M) and excess urea reaction in boiling aqueous solution. The precursor was calcined at 900 degrees C for 2 h and then delta-Al2O3 Powder having volumetric ... -
The investigation of the pore structure of fine alumina powders prepared for ceramic production by the technique of precipitation from solution
Ada, K.; Sarıkaya, Y.; Alemdaroğlu, T.; Önal, M. (2000)In this study, alumina precursors were prepared in three different ways and were converted into three different alumina powders (Al2O3) by calcination. The precipitation methods of the alumina precursors were as follows: ...