Abstract:
Ablative materials are heat shielding, protective
materials which are used in aerospace industry to
protect inner hardware and sensitive devices. It is
required to develop light weight material with high
modulus. EPDM is the best candidate for the
synthesis of ablative materials by introducing
different heating sink such as silica, glass fiber,
carbon fiber, asbestos and carbon and their
combinations.
The prepared materials were tested mechanically. It
was found that tensile strength of materials
containing carbon, carbon fiber, silica, asbestos
was increased by increasing testing speed and
decreased at the same speed, reverse behavior
was observed in silica-glass fiber combination. In
case of % Elongation, gradual decreasing behavior
was observed with carbon, glass fiber and carbon
fiber but there was opposite behavior in silica, glass
fiber and carbon fiber.
Rheological investigations of these novel
composites shows that moony viscosity of the
materials containing glass fiber, carbon fiber, silica
decreased in that order. The tested materials are
used in wide variety of ablative applications.
Parallel testing of thermal properties are in progress.
