A magnetic actuator is expected to operate at 400°C. a) Using a clearly labelled diagram, describe the effect of temperature on saturation magnetization. b) From the table above, suggest a material that could be used to make the magnetic actuator. Explain.

A magnetic actuator is expected to operate at 400°C. a) Using a clearly labelled diagram, describe the effect of temperature on saturation magnetization. b) From the table above, suggest a material that could be used to make the magnetic actuator. Explain.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.71P: 1.71 The thermal conductivity of silver at 212°F is 238 Btu/h ft °F. What is the conductivity in SI...

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Concept explainers

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.

Question

A magnetic actuator is expected to operate at 400°C.
a) Using a clearly labelled diagram, describe the effect of temperature on
saturation magnetization.

b) From the table above, suggest a material that could be used to make the
magnetic actuator. Explain.

Material Coercivity (kA/m) BH max (kJ/m³)
Curie temperature (°C)
A
19.90
8
887
В
0.08
0.04
771
1 500
175
723
D
238.85
28
429

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