Differentiate apparent density and tap density of powders.
[3 marks]Explain effect of particle size and shape on properties of final sintered
[4 marks]cDoemscpraibcte. advantages, limitations and applications of powder metallurgy.
[7 marks]Write applications of sintered bearings.
[3 marks]Briefly explain carbonyl process for powder production.
[4 marks]Describe atomization method for powder production.
[7 marks]List different powder production methods. Briefly explain reduction process.
Give the advantages and disadvantages of powder rolling.
[3 marks]Discuss various steps of powder forging.
[4 marks]Explain the die compaction process.
[7 marks]What do you mean by compaction? Enlist different powder compaction methods.
[3 marks]Describe role of lubricants in the die compaction of powders.
[4 marks]Define flow rate of powders. Explain method to measure it.
[7 marks]Write applications of sintered friction materials.
[3 marks]Enlist the factors to be considered for die design.
[4 marks]Explain the mechanism of liquid-phase sintering. Give advantages of this process.
[7 marks]What is pressure less powder shaping?
[3 marks]Discuss the function of sintering atmospheres.
[4 marks]Define sintering. Describe various stages of sintering.
[7 marks]Discuss advantages of hot isostatic pressing for powder compaction.
[3 marks]Explain different steps of mechanical alloying.
[4 marks]Write a note on defects in powder metallurgy components and their control measures.
[7 marks]Enlist important parameters of a mechanical mill.
[3 marks]Describe the hot isostatic pressing method for powder compaction.
[4 marks]Explain how electrical contact materials are produced by powder metallurgy. List their applications.
[7 marks]