The Effect of Commercial Rice Husk Ash Additives on the Porosity, Mechanical Properties, and Microstructure of Alumina Ceramics

Figure 4

(a) Trend of total porosity and open porosity with increases in the content of rice husk ash; (b) trend of sintered bulk density and green density with increases in the content of rice husk ash. All samples were sintered at 1600°C for 2 hrs.

(a)

(b)