Describe advantages of powder metallurgy.
[3 marks]Briefly explain the reduction process for powder production.
[4 marks]Explain water atomization method for powder production.
[7 marks]What do you mean by metallic filters? Give their applications.
[3 marks]Describe the function of different sintering atmospheres.
[4 marks]Explain the liquid-phase sintering process. Give advantages.
[7 marks]Define sintering. Describe various stages of sintering.
Discuss limitations of powder metallurgy.
[3 marks]Describe the method to measure flow rate of powders.
[4 marks]Explain method to measure tap density and apparent density of powder samples.
[7 marks]What are the antifriction materials? Write their applications.
[3 marks]Differentiate apparent density and tap density of powders.
[4 marks]Explain different steps of mechanical alloying. List important parameters of a mill.
[7 marks]Give applications of electrical contact materials produced by powder metallurgy.
[3 marks]Explain how electrical contact materials are produced by powder metallurgy.
[4 marks]Discuss various steps of powder forging. Give the advantages and limitations of powder forging.
[7 marks]Differentiate in Single and double die compaction.
[3 marks]List different possible defects in powder metallurgy route. Discuss any one.
[4 marks]Explain various steps of powder rolling. Give the advantages and disadvantages of powder rolling.
[7 marks]What is compaction? Explain its significance.
[3 marks]Discuss role of lubricants in the die compaction of powders.
[4 marks]Explain the hot isostatic pressing method for powder compaction.
[7 marks]Write advantages of hot isostatic pressing for powder compaction.
[3 marks]Discuss the factors to be considered for die design.
[4 marks]Explain the effect of particle size, shape and size distribution on the properties of powder metallurgy components.
[7 marks]