A parametric analysis of the strength-porosity relationship of green compacts formed through powder compaction route

S. S.M. Nor, Md Mujibur Rahman, A. T.A. Rahman, F. Tarlochan, H. Y. Rahman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


The strength of a green compacts formed through warm powder compaction route is strongly dependent on the forming load and temperature. As the forming load increases, the powder particles move from its initial position by sliding among them and die wall. This movement results in new arrangement and packing order of the particles. However, due to this movement, pores among the particles are generated that affects the mechanical properties of the green compacts. Having pores in green compacts lead to strain intensification at ligaments between pores during sintering at later stage, hence serve as areas for crack initiation. Therefore, as the powder forming relates directly to the load and temperature, strength to porosity relationship has to be analyzed based on those parameters. This paper presents the effect of porosity to the strength of green compacts formed at different load and temperature (70 kN to 130 kN; 30°C to 200°C). The bending strengths of green compacts are measured while Scanning Electron Microscopy is used for porosity evaluation. It has been found from the results that porosity and strength are related to each other at all forming parameters. In addition, high forming load and temperature give better strength due toporosity reduction.

Original languageEnglish
Title of host publicationExperimental Mechanics and Materials
Number of pages6
Publication statusPublished - 01 Sep 2011
EventInternational Conference on Experimental Mechanics 2010, ICEM10 - Kuala Lumpur, Malaysia
Duration: 29 Nov 201001 Dec 2010

Publication series

NameApplied Mechanics and Materials
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482


OtherInternational Conference on Experimental Mechanics 2010, ICEM10
CityKuala Lumpur


All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Nor, S. S. M., Rahman, M. M., Rahman, A. T. A., Tarlochan, F., & Rahman, H. Y. (2011). A parametric analysis of the strength-porosity relationship of green compacts formed through powder compaction route. In Experimental Mechanics and Materials (pp. 1-6). (Applied Mechanics and Materials; Vol. 83). https://doi.org/10.4028/www.scientific.net/AMM.83.1