GEOLOGY
STRUCTURAL GEOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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brittle
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ductile
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Either A or B
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None of the above
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Detailed explanation-1: -Brittle fracture means fracture of material without plastic deformation or with very small plastic deformation before fracture. Rock, concrete, glass, and cast iron all have such property, so they are called brittle materials.
Detailed explanation-2: -Brittle materials are characterized by little deformation, poor capacity to resist impact and vibration of load, high compressive strength, and low tensile strength. Most of inorganic non-metallic materials are brittle materials.
Detailed explanation-3: -Temperature-At high temperature molecules and their bonds can stretch and move, thus materials will behave in more ductile manner. At low Temperature, materials are brittle.
Detailed explanation-4: -What is the breaking stress of brittle materials? Explanation: It was found that the tensile strength of two adjacent atomic planes was Y/6. However, brittle materials may break at a stress of the order of Y/1000.
Detailed explanation-5: -Introduction. Many hard brittle materials such as silicon, glass, quartz, and some kinds of ceramics are widely used for recent high technology applications because of their unique electronic, chemical, and physical characteristics.