A process that increases the mechanical strength of a material by introducing multiple defects into a material so that the presence of one defect prevents the motion of another is called _____.

Question

Quizplus · Accepted Answer

The process described in the question is called pinning. Pinning occurs when multiple point or line defects are introduced into a material and act as obstacles to the movement of dislocations, preventing slip and thus increasing the material's mechanical strength. Sintering (A) is a process used to fuse particles together at high temperatures. Work Hardening (C) is a process that increases a metal's strength by plastic deformation. Pyrolysis (D) is a process that involves the decomposition of organic material at high temperatures in the absence of oxygen. Doping (E) is a process that introduces impurities into a material to alter its electrical or optical properties.

A Process That Increases the Mechanical Strength of a Material