Dear Pravin Bhukte,

Calcination and sintering are two different processes of firing. In the firing process of calcination, volatile components are removed while the sintering process is used for the densification of the materials.

https://en.wikipedia.org/wiki/Calcination

https://en.wikipedia.org/wiki/Sintering

With Regards

D. Kumar

You may want to check related RG threads: https://www.researchgate.net/post/What_is_the_difference_between_Annealing_Calcination_and_Sintering_process https://www.researchgate.net/post/What_is_the_difference_between_annealing_sintering_and_calcination https://www.researchgate.net/post/What_is_the_difference_between_sintering_and_calcination https://www.researchgate.net/post/What_is_difference_between_calcination_annealing_and_sintering

Calcination and Sintering are both thermal processes used for raising the materials to high temperatures. The difference between them is Calcination is heating of material in limited supply of air to remove or drive away moisture and impurities (volatile) and bring about a phase change where as Sintering is thermal process where Densification of material takes place.

For example, when Alumina tri-hydrate is Calcined, the water molecules and whatever impurities present (soda) are removed and Alumina is obtained. The density of this calcined alumina is around 2.6 gm/cc. When the same alumina is sintered, its density increases to >3.5 gm/cc (corundum density is 3.96gm/cc).

Dear Dr. Pravin Bhukte,

Calcination and sintering are two different pyrometallurgical processes.

The key difference between calcination and sintering is that calcination is the heating of metal ore to remove impurities, whereas sintering is the heating of metal ore to weld together small particles of a metal.

https://www.differencebetween.com/difference-between-calcination-and-sintering/

I hope the information will help you.

With Best Wishes,

Samir G. Pandya

thanks

I agree with Reshma Kuppili , Carlos Araújo Queiroz and Dinesh Kumar

Thanks to everyone . . .

Ok Thanks Dear ashish

Is there any distinguish of temperature between Calcination and Sintering process

Dear Dr. Pravin Bhukte :

Greeting , Calcining is one of the thermal treatment process usually done in the absence of air or oxygen and apply to solid material using temperature 600--1100 C while Sintering is the thermal process of compacting and forming started with low temperature 300 C and does not reach to melting point so this process play important role in powder metallurgy process mainly in manufacturing the carbide and ceramic cutting tools .

best wishes

Dr.Saad Kariem Shather

Dear Dr.Saad Kariem Shather

Thanks for information

In general sintering term is used in refractory industry. the refractory requires high temperature about 1600 dec C & more

With Regards

Pravin Bhukte

Hi

I completely agree with answer given by Mr. Ashish Bhatt . Cacination term is used to remove the impurities while the use of Sintering is to increase the grain size for getting a particular structure .

I also agree with Dr. Ashish Bhatt Sir