constituent phases characteristics of dispersed particles a concentration b

Constituent phases characteristics of dispersed

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constituent phases characteristics of dispersed particles: (a) concentration, ( b ) size, ( c ) shape, ( d ) distribution, ( e ) orientation
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Classification of Composite Materials 1. Matrix phase:
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Classification of Composite Materials 2. Reinforcement phase: Composite reinforcement
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Reinforcement phase composites Al matrix
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A. Particle-Reinforced Composites Al matrix reinforced with B 4 C (Boron carbide) Composites Particle- reinforced Fiber- reinforced Structural
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A. Particle-Reinforced Composites The steps in producing a silver-tungsten composite (a) Tungsten (matrix) powders are pressed. (b) consolidation process. (c) sintering joins the tungsten powders. (d) liquid silver (reinforcement) is infiltrated into the pores between the particles.
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A. Particle-Reinforced Composites Composite of tungsten particles dispersed within a copper matrix Composites Particle- reinforced Fiber- reinforced Structural
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A. Particle-Reinforced Composites Rule-of mixtures equations predict that the modulus of elasticity lies between an upper limit represented by : and a lower limit represented by: Electrical conductivity σ c replace in equations with σ c Thermal conductivity K c replace in equations with K c Composites Particle- reinforced Fiber- reinforced Structural
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A. Particle-Reinforced Composites Problem (1) A large-particle composite consisting of tungsten particles within a copper matrix. If the volume fractions of tungsten and copper are 0.60 and 0.40, respectively, estimate the upper and lower limit for the modulus of elasticity of the composite.
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A. Particle-Reinforced Composites Problem (2) A silver-tungsten composite for an electrical contact is produced. The modulus of elasticity of the tungsten is 340 Gpa and for silver is 69 Gpa. Estimate the volume fraction of the silver into the tungsten matrix if the modulus of elasticity of the composite is 259 GPa.
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