Compaction

Question 1

what is compression

Answer 1

particle formed into close proximity reducing bulk volume

Question 2

what is compaction

Answer 2

particles cohere to form a solid specimen of defined geometry

Question 3

tablet compaction 3 stages

Answer 3

upper punch
compact(die)
lower punch

Question 4

compaction cycle

Answer 4

filling
compression
ejection

Question 5

particle deformation with no compressive force causes

Answer 5

elastic recovery
low cohesion
no compaction

plastic deformation
high cohesion
compaction

Question 6

tensile strength

Answer 6

result of inter-particle bonding within tablet

Question 7

name the two equations used in this topic

Answer 7

kawakita

heckle

Question 8

in the heckle equation

Answer 8

particle rearrange and fragment
plastic deformation of particles
elastic deformation increases

Question 9

in tensile strength the graph is split into three parts. What does the first part show

Answer 9

compression and no compaction

Question 10

in the second part what does it show

Answer 10

higher compression pressure so greater tablet tensile strength

Question 11

what does the third part mean

Answer 11

maximum tensile strength