Home › GATE ME › Mechanical Engineering › composites › Compare flake composites vs particulate composit…
Compare flake composites vs particulate composites. The figure below shows one of them: 
A{'text': 'Sandwich laminates', 'label': 'C'}
B{'text': 'Flake composites — reinforcement is FLAT/PLATE-LIKE particles, providing higher in-plane strength than spherical particles in the same matrix', 'label': 'A'}
C{'text': 'Random fiber composites', 'label': 'B'}
D{'text': 'Cermets', 'label': 'D'}
Answer & Solution
Correct answer: B. {'text': 'Flake composites — reinforcement is FLAT/PLATE-LIKE particles, providing higher in-plane strength than spherical particles in the same matrix', 'label': 'A'}
Flake composites use flat plate-like reinforcement (e.g. mica flakes, glass flakes). Higher aspect ratio than spherical particles ⇒ better in-plane stiffness/strength but anisotropic. Used in coatings, EMI shielding.
Related questions
Why are continuous-fiber composites often described as having "near-zero" ductility comparThe fundamental MOTIVATION for using composites in spacecraft and aircraft is:Examples of MATRIX MATERIALS commonly used in PMCs include:What is the principal advantage of carbon-carbon composites over metal alloys for high-temIn a fiber-reinforced composite, ANISOTROPY (direction-dependent properties) is MAXIMUM whMICROSPHERES (hollow glass spheres) used as filler in composites primarily improve:Directionally-solidified eutectic composites are produced by:In a unidirectional continuous-fiber composite under tension PARALLEL to fibers, the longi