What are the grain boundaries, Biology

Assignment Help:

What are the Grain boundaries

Grain boundaries disrupt the motion of dislocations by a material, so reducing crystallite size is a common way to improve strength. Since grain boundaries are defects in the crystal structure they tend to reduces the electrical and  thermal conductivity of the material. The high interfacial energy and relatively weak bonding in most grain boundaries often makes them preferred sites for the onset of corrosion and for the precipitation of latest phases from the solid. They are also significant to many of the mechanisms of creep.

 


Related Discussions:- What are the grain boundaries

What is the energy source used in active transport, Q. What is the energy s...

Q. What is the energy source used in active transport through biological membranes? The energy necessary for active transport against the concentration gradient of the transpor

What is the molecular formula of glucose, Q. What is the molecular formula ...

Q. What is the molecular formula of glucose? How can its structural formula be explained? The molecular formula of glucose is C 6 H 12 O 6 . Structurally glucose is a hexago

Which hormones secreted by the adenohypophysis, Q. What are the hormones se...

Q. What are the hormones secreted by the adenohypophysis? What are their respective functions? The ACTH (adrenocorticotropic hormone), adenohypophisys secretes GH (growth hormo

What is the usual morphological feature of nematodes, Q. What is the usual ...

Q. What is the usual morphological feature of nematodes that differentiates them from platyhelminthes? Nematodes are also called as roundworms. As the name indicates they are n

Explain the characteristics of a biological community, Which one of the fol...

Which one of the following is one of the characteristics of a biological community? 1.  Stratification 2. Natality 3. Mortality 4. Sex-ratio   Stratification

What is neuron cell body, Q. What is an example of a situation in which the...

Q. What is an example of a situation in which the neuron cell body is located in a part of the body and its axonal terminal portion is in another distant part of the body? Why does

What is the type of reproduction that occurs in roundworms, What is the typ...

What is the type of reproduction that occurs in roundworms? What typical element do nematode sperm cells have? Nematodes reproduce sexually. The nematode sperm cell does not h

Explain about the duration of exercise for diabetics patient, Explain about...

Explain about the duration of exercise for diabetics patient After selecting an exercise, it is very important to know the vigorous nature, duration and timings of the exercise

Man-made disasters- nuclear disasters, Among all the environmental disaster...

Among all the environmental disasters that might be caused by humans, nuclear disasters have the greatest potential of causing severe damage to life property. The released as a con

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd