The meaning of aging and the reason forusing this procedure in precipitation hardening needs to be determined. Concept Introduction: Aging is defined as an unexpected change of chemical and physical structure of polymer during its application. Under atmospheric conditions. As far as chemical changes are concerned they occur during both processing and application. During the process being carried out, the temperature may rise that leads to thermal and oxidation reaction that becomes the main reason for the change in structure.

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Chapter 12, Problem 12.34P

Interpretation Introduction

Interpretation:

The meaning of aging and the reason forusing this procedure in precipitation hardening needs to be determined.

Concept Introduction:

Aging is defined as an unexpected change of chemical and physical structure of polymer during its application. Under atmospheric conditions. As far as chemical changes are concerned they occur during both processing and application. During the process being carried out, the temperature may rise that leads to thermal and oxidation reaction that becomes the main reason for the change in structure.

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