Materials in High-Tech Applications
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Questions and Answers

Which of the following properties is associated with polymeric materials according to the text?

  • Chemically inert and unreactive (correct)
  • Insensitive to temperature changes
  • Chemically reactive
  • High costs
  • Which type of material is described as having 'electrical conductivities intermediate between conductors and insulators' in the text?

  • Semiconductors (correct)
  • Smart materials
  • Nanomaterials
  • Biomaterials
  • What is a key requirement for a hip implant material according to the text?

  • Low strength
  • Good lubricity (correct)
  • High density
  • Low stiffness
  • According to Fig. 1.4, which type of material has the highest room-temperature stiffness?

    <p>Ceramics</p> Signup and view all the answers

    Based on the information provided in Fig. 1.3, which type of material has the highest room-temperature density?

    <p>Metals</p> Signup and view all the answers

    Which material property is associated with 'light, strong, flexible' materials in the text?

    <p>Composites</p> Signup and view all the answers

    What aspect of Materials Science investigates the relationships between processing, structures, properties, and performance of materials?

    <p>Structure-Property Correlation</p> Signup and view all the answers

    How does aluminum oxide's transparency vary according to its structure?

    <p>Varies based on the degree of porosity</p> Signup and view all the answers

    In the field of materials science, what can affect the performance of a material?

    <p>Cooling Rate</p> Signup and view all the answers

    Which of the following is NOT a type of material based on the text provided?

    <p>Translucence</p> Signup and view all the answers

    Which step in the Materials Selection Process involves determining the required properties for a specific application?

    <p>Picking the application</p> Signup and view all the answers

    What can change the structure of a material?

    <p>Processing techniques</p> Signup and view all the answers

    Which type of material exhibits properties like high thermal and electrical conductivity, resistance to fracture, and opacity?

    <p>Metals</p> Signup and view all the answers

    Which type of material is characterized by ionic bonding and non-conducting properties?

    <p>Ceramics</p> Signup and view all the answers

    What type of bonding is predominant in the structure of polymers/plastics?

    <p>Covalent bonding</p> Signup and view all the answers

    In terms of strength and density, which material category generally has low values?

    <p>Polymers/Plastics</p> Signup and view all the answers

    What distinguishes composites from the other material types mentioned in the text?

    <p>They are homogeneous mixtures</p> Signup and view all the answers

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