Explanation Mohs hardness scale is used to determine the hardness of any mineral. Al 2 O 3 is placed at top of the Mohs hardness scale which means it is maximum hard in nature. It has a strong ionic bond. The thermal expansion coefficient also depends on bond energy, higher the bond energy lesser will be the thermal expansion coefficient. Therefore, Al 2 O 3 will have a lower value of the thermal expansion coefficient. Value of thermal expansioncoefficient (a) for Al 2 O 3 by using the table of thermal properties of the variety of material is as follows: Thermal expansion coefficient (a) = 7...

Essentials Of Materials Science And Engineering

4th Edition

ISBN: 9781337385497

Author: WRIGHT, Wendelin J.

Publisher: Cengage,

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Question

Chapter 2, Problem 2.42P

Interpretation Introduction

Interpretation:

The species with a higher thermal expansion coefficient from Al₂O₃, and Al needs to be determined.

Concept introduction:

Thermal expansion coefficient is defined as the extent up to which a material can change its property upon heating. It is also represented in the ratio of expansion of metal and change in temperature. It depends on the bond energy of metals.

Expert Solution & Answer

Chapter 2 Solutions

Essentials Of Materials Science And Engineering

Ch. 2 - Prob. 2.1P Ch. 2 - Prob. 2.2P Ch. 2 - Prob. 2.3P Ch. 2 - Prob. 2.4P Ch. 2 - Prob. 2.5P Ch. 2 - Prob. 2.6P Ch. 2 - Prob. 2.7P Ch. 2 - Prob. 2.8P Ch. 2 - Prob. 2.9P Ch. 2 - Prob. 2.10P

Ch. 2 - Prob. 2.11P Ch. 2 - Prob. 2.12P Ch. 2 - Prob. 2.13P Ch. 2 - Prob. 2.14P Ch. 2 - Prob. 2.15P Ch. 2 - Prob. 2.16P Ch. 2 - Prob. 2.17P Ch. 2 - Prob. 2.18P Ch. 2 - Prob. 2.19P Ch. 2 - Prob. 2.20P Ch. 2 - Prob. 2.21P Ch. 2 - Prob. 2.22P Ch. 2 - Prob. 2.23P Ch. 2 - Prob. 2.24P Ch. 2 - Prob. 2.25P Ch. 2 - Prob. 2.26P Ch. 2 - Prob. 2.27P Ch. 2 - Prob. 2.28P Ch. 2 - Prob. 2.29P Ch. 2 - Prob. 2.30P Ch. 2 - Prob. 2.31P Ch. 2 - Prob. 2.32P Ch. 2 - Prob. 2.33P Ch. 2 - Prob. 2.34P Ch. 2 - Prob. 2.35P Ch. 2 - Prob. 2.36P Ch. 2 - Prob. 2.37P Ch. 2 - Prob. 2.38P Ch. 2 - Prob. 2.39P Ch. 2 - Prob. 2.40P Ch. 2 - Prob. 2.41P Ch. 2 - Prob. 2.42P Ch. 2 - Prob. 2.43P Ch. 2 - Prob. 2.44P Ch. 2 - Prob. 2.45P Ch. 2 - Prob. 2.46P Ch. 2 - Prob. 2.47P Ch. 2 - Prob. 2.48P Ch. 2 - Prob. 2.49P Ch. 2 - Prob. 2.50P Ch. 2 - Prob. 2.51DP Ch. 2 - Prob. 2.52DP Ch. 2 - Prob. 2.53DP Ch. 2 - Prob. 2.54DP Ch. 2 - Prob. K2.1KP

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