Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
SHAPE MEMORY ALLOYS: A group of metallic materials that can return to some previously defined shape or size when subjected to the appropriate thermal producer. That is to say, shape memory alloys can be plastically distorted at some comparatively low temperature and, upon exposure to higher temperature, will come again to their original shape. Materials that exhibit the shape memory effect include a number of copper alloy and systems and of gold –cadmium, nickel-aluminium, and iron-platinum. Shape memory property possessed by certain alloys that allows them to return when heated, to their original shape after having been performed, it undergoes a martens tic (or a thermal) transformation a solid state transition that rapidly changes the crystalline structure of the alloy without thermal activation that is readily reversed once an appropriated amount of heat is applied. Among the alloys are copper aluminium nickel, copper-zinc-aluminium, nickel titanium, and iron-manganese silicon.
APPLICATIONS: The shape memory alloys are used in the heat activated fasteners, switches, eyeglass frames, orthopaedic devices, teeth braces and blood clot filters.
Their resistivity is very low and temperature coefficient of resistance is not constant. These are materials with unfilled or overlapping energy bands. Current carriers here are fr
1. Calculate the entropy change when 1 kmol of an ideal gas at 300 K and 10 bar expands to a pressure of 1 bar if the temperature stays constant. 2. What is the change in entrop
Light coupling: Another way to look at light guiding in a fibre is to measure the fibre's acceptance angle. This angle is the angle within which the light should enter the fib
. Introduction to the topic. Research the topic of cruise control systems in a historical context and identify the complex mechanical and electrical hardware involved in implementi
how can we find the value of g
A string has a linear density of 7.20 10-3 kg/m and is under a tension of 390 N. The string is 1.9 m long, is fixed at both ends, and is vibrating in the standing wave pattern sho
Finding the electric potential because of a continuous distribution of charge involves doing an integral. An integral is an infinite total of terms. In computing the electric poten
Q. What is neutral temperature? Maintain the temperature of the cold junction constant the temperature of the hot junction is gradually increased. The thermo emf increase to a
Intensities of an ordinary light and laser light The intensity (I) of a wave is the energy per unit time flowing through a unit normal area. The light from an ordinary light so
Disadvantages of D.C. Transmission of power 1. Electric power cannot be produced at high d.c. voltages because of commutation problem. 2. The d.c. voltage cannot be stepped
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd