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materials physics and technologies notes
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- Material physics involves understanding atoms, molecules, and crystals at various length scales, from atomic to macroscopic levels, to develop materials for different applications.
- The importance of length, temperature, pressure, mass, and time scales in material science is highlighted, with examples ranging from nanometers to kilometers, picoseconds to years, and absolute zero to thousands of degrees Celsius.
- Materials are classified based on their composition (metals, polymers, ceramics) and properties, with each type suitable for specific applications like hip implants or photovoltaic cells.
- The relationship between materials and devices is emphasized through examples such as the evolution of solar cell efficiency over time and the selection of appropriate materials for different applications.
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