What is Poisson's ratio ? why do you think is it lower for ceramics and higher for polymers compared to metals. Name a -ve Poisson's ratio material.

Q: Typical mechanical properties of ceramics include high hardness, brittleness, and no ductility.…

A: Given Statement:-  Typical mechanical properties of ceramics include high hardness, brittleness, and…

Q: A continuous and aligned glass fiber-reinforced composite with modulus of elasticity of 55 GPa. The…

A:

Q: What is Gorilla Glass from Corning? Why does it outperform regular window glass in terms of…

A: To explain: What is Gorilla Glass from Corning? Why does it outperform regular window glass in terms…

Q: Calculate how many billion years it will take to build 1 mole of a molecule with a formula of…

A:

Q: Describe three of the functions of the matrix in fibre- reinforced composites.

A: We will answer the first question since the exact one was not specified. Please submit a new…

Q: Do fatigue striations have the same interpretation in polymers as in metals?

A: In polymers, the fatigue load model is quite complicated as discontinuous growth of crack has been…

Q: A steel plate used for polymer forming is to be bent into a circular shape having an inside radius…

A:

Q: The density of an unknown polymer is 1.875 g/cm³ with a % crystallinity of 50%. If the density when…

A: To find: The density of unknown polymer when totally crystalline and density when the crystallinity…

Q: Why are ceramics weaker in tension, plot their stress strain curve in tension and compression

A: Plastic deformation is not substantial in brittle materials. They fail as a result of atom-to-atom…

Q: What are the key advantages and applications of ceramic materials in the field of mechanical…

A: Ceramic materials, characterized by their hardness, high melting point, and low electrical…

Q: Briefly explain the shortcomings of a Maxwell mechanical model in describing the real behaviour of…

A: The Maxwell model is one of the simple idealizations of describing the real behavior of polymeric…

Q: Assume the temperature of your skin is 32oC. If you touch a thick piece of aluminum at 75oC, what is…

A: Write the given data. Tskin=32 °CTaluminium=75 °CTconc=90 °C

Q: Why do crystalline polymers tend to have higher density than amorphous ones?

A: In crystalline polymers, polymer chains are closely and tightly packed in a regular manner unlike…

Q: List three engineering components / applications that, in your judgment, need high stiffness and low…

A: Specific stiffness is the ratio of the young modulus of the object to the density of the object.…

Q: in cutting tools. Which main material properties of the ceramics used for these applications make…

A: Ans : c,d,e are correct, remaining are incorrect. Ceramics generally have a low coefficient due to…

Q: A steel plate used for polymer forming is to be bent into a circular shape having an inside radius…

A:

Q: Identify which is typically tougher: a semicrystalline or an amorphous polymer.

A: The difference between the given polymer types lies in their molecular structure. Amorphous material…

Q: xplain cross-linking, branching, linear polymers, and chain stiffening?

A: This question is based on the concept of polymers from material science.

Q: What is an important consequence of time-temperature equivalence for testing of polymer…

A: Time-temperature superposition is a method that has become important in the field of polymers to…

Q: Define and discuss Blow molding Process in Metal and Plastic. Can blow molding be used in Glass…

A: Please find the solution below

Q: What are the differences between addition polymerization and condensation polymerization?

A: The main difference between addition and condensation polymerization is that in addition…

Q: Illustrate the difference between crystalline and amorphous polymers structure and explain the…

A: To explain: The difference between crystalline and amorphous polymer structure. Explanation:…

Q: Ceramics are used in die blanks and in cutting tools. Which main material properties of the ceramics…

A: Given

Q: Explain how macroscopic plasticity occurs in polymers from the point of view of microscopic…

A: Plasticity in a crystal of pure metal is basically the outcome of two modes of deformation in the…