Let's translate and analyze the statements: The materials, for convenience, are separated into classes based on their constitution, arrangement of their atoms, and their properties. These classes, or groups, are: Metals or metallic materials. Ceramics or ceramic materials. Polymers or polymeric materials. Composites or composite materials. Each of these classes has materials with structures and properties different from the other classes. (CALLISTER JR., W. D.; RETHWISCH, D. G. Materials Science and Engineering: An Introduction. 8th ed. Rio de Janeiro: LTC Publisher, 2013). Regarding the characteristics and properties of materials and considering their classification, judge the following statements: The class of metallic materials comprises those materials characterized by a wide range of melting temperatures and stiffness, as well as good thermal and electrical conductivity. Ceramic materials are notably characterized by their high melting temperatures and stiffness, which is why they are widely used as conductive materials. Materials classified as composites are based on the so-called principle of combined action, where their properties result from the synergistic combination of the properties of the phases that constitute them. PE (polyethylene) and PVC (polyvinyl chloride) are examples of polymeric materials, widely used as insulating materials due to their properties such as high melting temperatures, low density, and high flexibility. Low-carbon steels are an example of ferrous alloys widely used in both industry and construction due to their excellent mechanical properties. Is it correct to say:
Let's translate and analyze the statements:
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The materials, for convenience, are separated into classes based on their constitution, arrangement of their atoms, and their properties. These classes, or groups, are:
- Metals or metallic materials.
- Ceramics or ceramic materials.
- Polymers or polymeric materials.
- Composites or composite materials.
Each of these classes has materials with structures and properties different from the other classes.
(CALLISTER JR., W. D.; RETHWISCH, D. G. Materials Science and Engineering: An Introduction. 8th ed. Rio de Janeiro: LTC Publisher, 2013).
Regarding the characteristics and properties of materials and considering their classification, judge the following statements:
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The class of metallic materials comprises those materials characterized by a wide range of melting temperatures and stiffness, as well as good thermal and electrical conductivity.
-
Ceramic materials are notably characterized by their high melting temperatures and stiffness, which is why they are widely used as conductive materials.
-
Materials classified as composites are based on the so-called principle of combined action, where their properties result from the synergistic combination of the properties of the phases that constitute them.
-
PE (polyethylene) and PVC (polyvinyl chloride) are examples of polymeric materials, widely used as insulating materials due to their properties such as high melting temperatures, low density, and high flexibility.
-
Low-carbon steels are an example of ferrous alloys widely used in both industry and construction due to their excellent
mechanical properties.
Is it correct to say:
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