Fill in the response. A 2 person conversation:
[+] what are the different stages of sintering.
[+] Now assuming that the grains only grow due to the influence of curvature, the driving force of growth is formula_18 where (for homogeneous grain structure) R approximates to the mean diameter of the grains..
[+] Are there any other interesting aspects about this article?.
[+] With this the critical diameter that has to be reached before the grains ceases to grow: formula_19 This can be reduced to formula_20 so the critical diameter of the grains is dependent of the size and volume fraction of the particles at the grain boundaries..
[+] can you explain the inclusions.
[+] It has also been shown that small bubbles or cavities can act as inclusion More complicated interactions which slow grain boundary motion include interactions of the surface energies of the two grains and the inclusion and are discussed in detail by C.S. Smith..
[+] what are the different applications of sintering.
[+] In geology a natural sintering occurs when a mineral spring brings about a deposition of chemical sediment or crust, for example as of porous silica..
[+] can you explain the texture.
[+] 
A sinter is a mineral deposit that presents a porous or vesicular texture; its structure shows small cavities.