Question

c) Select a suitable composite material for ONE of the following applications. In each case, state the names of the matrix and reinforcement and give the main reason for your choice of each composite. i. Mountain bike frame; ii. Cutting tool tip. (5)

Answer 1

pls look below for detailed explanation

(i) Mountain bike fame is the backbone of the bicycle's design. as it structurally holds all the pieces together. Most of the materials of Carbon fibre, aluminum, Steel and Pitanium. are made Carbon fibre is one such composite which is a better choice compared to others. Carbon is the lightest of all four materials, and its complexity during fabrications & make it the most expensive. Carbon fibres is composed of fibrous stands woven into a grid. layered and then bovended together with an epoxy. Because the Cost constraints and properties, -Carbon fibre best choice for Mountain bike frame of forms the best choice as a (ii) Cutting tool/ tips need hard carbide particles providing cutting surface but being extremely brittle forms / gernes disadvantage. Toughness enhanced by their inclusion in the ductile metal maturing which isolates the carbide particles from one another and prevents particle to particle crack propagation. Both mateip & the reinforcement (particulates) phases are refractory to withstand high temperatures generated by by the culting actions on the materials which are extremely hand Relatively large volume fractions of the particulate phase may be used often exceeding 90% vol thus abracine actors a composite material is maximized, which is seen in Tungsten Carbide-Cobalt (wc-co) cemented callida