Course Details
Subject {L-T-P / C} : MM6521 : Powder Technology { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Debasis Chaira
Syllabus
Introduction: scope of powder metallurgy, characterization of metal powders, physical properties-particle size and shape determination, technological properties-apparent density, tap density, green density, sintered density, flow rate etc.
Powder manufacturing: reduction, electrolysis, and atomization processes. Compaction and consolidation: Die compaction and other advanced consolidation techniques like hot pressing (HP), hot iso-static pressing (HIP), spark plasma sintering (SPS) etc.
Sintering: solid and liquid state sintering, sintering mechanisms. Sintering furnaces and sintering atmospheres. Sintering theory and the influence of different processing conditions, wetting and surface diffusion.
Powder metallurgy products: bearing, filters, friction parts, hard metals, refractory metals, contact materials, magnetic materials, structural parts, and dispersion strengthened materials.
Course Objectives
- Understanding of different metal/alloy powder fabrication techniques
- Ability to characterize powder particles
- To study basics of powder compaction and different powder compaction techniques
- Understanding of fundamentals of sintering and applications of different sintering techniques to fabricate P/M products
Course Outcomes
CO1: To learn various methods of powder fabrication <br />CO2: To have an idea about powder metallurgy products used in the industry <br />CO3: To learn about powder mixing and lubrication before compaction and characterization of the green compact <br />CO4: To learn the characterization of powders and sintered products <br />CO5: To have an idea of various sintering techniques including advanced techniques <br />CO6: To have an idea of powder characteristics on the effect of compaction and sintering
Essential Reading
- R.M. German, Powder Metallurgy Science, Metal Powder Industries Federation, Princeton, New Jersey
- M.N. Rahaman, Ceramic Processing and Sintering, Marcel Dekker, New York
Supplementary Reading
- G.S. Upadhyaya, Powder Metallurgy Technology, Cambridge International Science Publishing
- A.K. Sinha, Powder Metallurgy, Dhanpat Rai Publication
Journal and Conferences
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