Materials Science Lecture Notes

These flashcards cover key vocabulary and concepts from the materials science lecture, helping students review the fundamental ideas related to materials and their applications.

A Materials World

The introduction to understanding materials and their importance in civilizations and technological advancements.

Element

The fundamental building blocks of matter, with around 90 naturally occurring ones in the Earth's crust.

Stone Age

A historical period characterized by the use of stone tools, divided into Paleolithic and Neolithic periods.

Knapping

A process used to shape stones (e.g., obsidian or flint) into sharp tools by hammering off flakes.

Ice Patch Archeology

A field of study focusing on artifacts preserved in ice, revealing information about ancient human activities.

Smelting

The process of extracting metal from its ore by using heat and a reducing agent.

Bronze Age

A historical period characterized by the widespread use of bronze, an alloy of copper and tin.

Iron Age

A historical period where iron became the primary material used for tools and weapons.

Radiocarbon Dating

A method used to determine the age of artifacts by measuring the decay of carbon-14 isotopes.

Materials Science

The study of materials and their applications in technology, encompassing metals, ceramics, polymers, and composites.

Nanocomposites

Materials composed of nanoparticles combined with other materials to enhance their properties.

Structure Affects Properties

A fundamental principle in materials science indicating that the arrangement of atoms in a material influences its behavior and characteristics.

Dendrite

A tree-like structure formed during the solidification of metals when they cool and crystallize.

Homogeneous Nucleation

The process where nuclei form in pure liquid metal under very high supercooling conditions.

Heterogeneous Nucleation

The formation of stable nuclei on pre-existing surfaces or impurities, requiring less supercooling than homogeneous nucleation.

Grain Boundary

The interface between two grains in a polycrystalline material, characterized by less ordered atomic arrangements.

Gibbs Free Energy

The energy available to do work in a system, which influences the stability of phases in materials.

Amorphous Material

A material lacking long-range order in its atomic arrangement, such as glass.

Composite Material

A combination of two or more distinct materials to achieve desired mechanical properties.