07 July 2016 3 5K Report

Kindly apprise me about the complete details of the article titled 'Self-lubricating sintered composites with hexagonal boron nitride and graphite mixtures as solid lubricants'.

More sanjay mohan Sharma's questions See All
How does flow stress influences increase in porosity ?

What are the various reasons for increasing porosity in powder metallurgical composites?. And how flow stress relates to porosity.

03 April 2018 7,843 3 View

Does addition of zinc stearate to metallic powders of iron, copper, aluminium etc in Powder metallurgy brings in problems?

In powder metallurgy stearates are added while mixing of powders in order to facilitate compaction. Further these stearates are removed during dewaxing. If zinc stearate is added as a lubricant...

01 February 2017 1,298 5 View

How to read oxidative wear in SEM image?

While undergoing wear  testing of sintered composites at high temperature, how to read oxidative wear in SEM images

10 November 2016 6,607 2 View

Compressive strength of Composites at high temperature?

I wanted to know the approximate reasoning for the decrease in compressive strength of Fe based composite at high temperature (500 degree Celcius).It would be a kind gesture if some one provides...

09 October 2016 6,017 3 View

Porosity?

What is the easiest way to calculate porosity in sintered alloys.

03 April 2016 8,093 7 View

How to calculate relative density?

In case certain reinforcements of same kind   is done in some base matrix in order to know the change in porosity of the reinforced materials with respect to the base matrix, then while...

03 April 2016 6,449 4 View

Location of Oxides formed on Iron based material?

It would be humble gesture if some one could confirm the formation od oxides in the attached SEM image as it is the image of  sample tested for wear at 500 degree celcius

02 March 2016 8,573 2 View

How to calculate wear rate?

If some one can clarify as to what formulae is best for calculating wear rate in case of composites.

02 March 2016 6,458 17 View

Can iron oxides such as Fe2O3, Fe3O4 be used as solid lubrication?

Iron oxides possess good hardness and is it possible that these oxides help in reduction of friction at 500 degree celcius

02 March 2016 3,160 8 View

Can room temperature hardness be used to justify wear behaviour of alloys tested at high temperatures?

Since hardness testing at high temperatures mostly is not available, so is it possible that room temp hardness values may be used to relate wear rate of alloys tested at elevated temperatures...

02 March 2016 3,957 11 View

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