Batsirai Magunje

University of Cape Town

M. F. Melendrez

University of Concepción

Panagiotis Klonos

National Technical University of Athens

Marcello Romagnoli

Università degli Studi di Modena e Reggio Emilia

Manjunatha Pattabi

Mangalore university

Luc Emile Brunet

R&D Mediation

Imran Khan

Instituto Politécnico de Leiria

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## All Answers (7)

M. F. Melendrez· University of ConcepciónM. F. Melendrez· University of ConcepciónPanagiotis Klonos· National Technical University of AthensPanagiotis Klonos· National Technical University of Athenshttp://www.sciencedirect.com/science/article/pii/S0169433211014474

http://www.sciencedirect.com/science/article/pii/S0008622311008281

Manjunatha Pattabi· Mangalore universityMarcello Romagnoli· Università degli Studi di Modena e Reggio EmiliaMy suggestion is the following.

We can assume that the area of contact is equal to:

Contact area = Surface area - Area of the pores

Surface area = Total area of the particles not in contact

Area of the pores = Area of the pores when the particles are in contact

The first one can be measured by BET, the second one can be estimate by measure of porosity using the mercury method.

Both the measures have an interval of error so the results are not perfectly correct.

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