Different types of defects

What is it about?

Properties of most of the materials are tremendously influenced by the presence of imperfections or defects. These imperfections greatly alter the mechanical, electrical, surface, chemical and thermal properties of materials. Therefore, one should have a complete knowledge of defects or imperfections. The mechanical properties of pure metals go through great change when they are alloyed; for example, steel (combination of iron and 0.1% carbon) is much harder and stronger than pure iron. Bronze (20% tin and 80% copper by mass) produces a much harder and sharper weapon than pure tin or pure copper. Jewelry gold (pure gold and 5% copper by mass) produces a much harder, lustrous and durable gold than pure gold.

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