Yes..there is relation between density and grain size

Actually density varies wrt to grain size

The large grain size gives compact pellet and low pores.

It is clear that grain sizes will increase with increasing sintering temperature in ceramics. If we start out here, we can say that the volume will grow and thus the density will decrease. But in which form the ceramic will be used will gain importance. That is, the volume and mass calculation must be calculated according to the form of the material before and after the sintering. I recently published a study on the effect of sintering temperature on a ceramic material. You can reach my profile if you want.

Thank you very much Shivangi Dubey Shivangi Dubey

Karthik yadav penna ...volkan is right ..grain size and density depends on sintering temperature.. specially when you prepared ur ceramic material in pellet form

Density, grain size depends on the sintering time, sintering temperature and sintering procedure. And also the depends on the ceramic powder size.

We should consider all these steps. I have been published some research articles on some ceramics. Go through my papers. Maybe you will get some information from this.

Wish you good luck. If you have any questions regarding, don't hesitate to ask me.

Venkata Ramana Mudinepalli

Dear Sir

Thank you very much for sharing knowledge and response. It helped me a lot.

Upon increasing the sintering time grain size also increases, What is maximum limit to tha increase in the grain size? Does it decrease after reaching the maximum size?

The grain size depends on....Not only depends on the sintering time, but also other sintering and preparation methods.

It is depends on the nature of the material also.The grain size increases up to certain level only. Not beyond that.

We should consider the density and other parameters too. What type of ceramics are you preparing.

Venkata Ramana Mudinepalli Sir, I am preparing ferroelectric based ceramics . After reaching the maximum grain size if we keep on sintering .will the larger grains bursts into smaller grains or will they remain in same size?

I have done some ceramics. Please go through my research papers

Dear Karthik,

Once the grain sie reaches the maximum sie, It wont be brusts into small pieces. It means...the sample will cook at over sintering. Try to make reasonable sintering temperature and set that to get either nm grains.