الفهرس 
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Abstract
Micro-capsules are prepared with two basic forms, the 1 st form is covered
, .~
by one shell made of urea-formaldehyde, the 2nd one is covered by two
shells (the first shell is urea-formaldehyde and the second shell made of
poly-urethane ).
Both forms, the first and the second of the Micro-capsules are filled by
two types which are corrosion inhibitors (corr A and corr B). Some tests
were applied and discussed like: optical scanning microscope was used to
confirm the formation of capsules, microcapsules were weighed ill order
to measure the shrinking rate, thermal gravimetric analysis was applied to
find the rate of stability under heating of the micro-capsules; Intra-red
spectroscopy was applied to make sure of the formation of shells of the
micro-capsules and physical properties were monitored weekly to
confirm the stability of the micro-capsules. The self-healing properties
ar~ focused on as: micro-capsules of the one and two shells were
incorporated with epoxy paint (which used as a protective coating for,