The diametrical tensile strengths of the pellets made
from different particle sizes and compacted at various
compaction pressures are shown in Fig.4. The range of
tensile strength was between 0.07 and 0.26 MPa, with the
lowest values obtained for pellets made from the particle
size of 300–425lm. These tensile strength values were
much lower compared to the compressive strengths. In
addition, the tensile strength appeared to be increasing
monotonically with increasing compaction pressures and
there was an absence of a plateau at high compaction
pressures.
The co