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technological O
importance O
for O
the O
final O
built O
product O
. O
Current O
three-dimensional S-CONPRI
( O
3D S-CONPRI
) O
measurements O
of O
these O
distributions S-CONPRI
assume O
a O
spherical S-CONPRI
shape O
, O
while O
techniques O
that O
measure O
both O
size O
and O
shape O
are O
always O
two-dimensional S-CONPRI
( O
2D S-CONPRI
) O
measurements O
of O
particle B-CONPRI
projections E-CONPRI
. O
This O
paper O
describes O
a O
set S-APPL
of O
techniques O
using O
X-ray B-CHAR
computed I-CHAR
tomography E-CHAR
, O
combined O
with O
various O
mathematical B-CONPRI
algorithms E-CONPRI
, O
to O
measure O
the O
3D S-CONPRI
size O
, O
shape O
, O
and O
internal O
porosity S-PRO
of O
individual O
particles S-CONPRI
. O
Calibrated S-CONPRI
by O
a O
limited O
amount O
of O
visual B-CHAR
examination E-CHAR
of O
3D B-CONPRI
images E-CONPRI
of O
individual O
particles S-CONPRI
, O
these O
techniques O
can O
classify O
powder B-MATE