Check the correct statements. a) The huge differences between the values of theoretical strength and real strength of the crystals were attributed to the existence of punctual defects like gaps. b) The extremely high strength limit of filament crystals (whiskers) is generally attributed to the low degree of internal and surface imperfection and justifies their use as reinforcements in composite materials. c) Transmission electron microscopy, decoration technique, special X-ray techniques and indentation allow experimental observation of disagreements. d) During plastic deformation, there is an increase in the density of dislocations in a crystal. The formation of unevenness loops, irregularity in the grain boundaries, deposition of thin films and formation of solid solutions are among the different sources of unevenness multiplication.
Check the correct statements. a) The huge differences between the values of theoretical strength and real strength of the crystals were attributed to the existence of punctual defects like gaps. b) The extremely high strength limit of filament crystals (whiskers) is generally attributed to the low degree of internal and surface imperfection and justifies their use as reinforcements in composite materials. c) Transmission electron microscopy, decoration technique, special X-ray techniques and indentation allow experimental observation of disagreements. d) During plastic deformation, there is an increase in the density of dislocations in a crystal. The formation of unevenness loops, irregularity in the grain boundaries, deposition of thin films and formation of solid solutions are among the different sources of unevenness multiplication.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Check the correct statements.
a) The huge differences between the values of theoretical strength and real strength of the crystals were attributed to the existence of punctual defects like gaps.
b) The extremely high strength limit of filament crystals (whiskers) is generally attributed to the low degree of internal and surface imperfection and justifies their use as reinforcements in composite materials.
c) Transmission electron microscopy, decoration technique, special X-ray techniques and indentation allow experimental observation of disagreements.
d) During plastic deformation, there is an increase in the density of dislocations in a crystal. The formation of unevenness loops, irregularity in the grain boundaries, deposition of thin films and formation of solid solutions are among the different sources of unevenness multiplication.
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