Making a transparent metal - ALON

in #science5 years ago

ALON, also known as transparent aluminium armour is a ceramic alloy made of aluminum oxynitride, a combination of aluminum, oxygen and nitrogen.

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ALON is both lighter (about 0.5x) and stronger (> 2x) than the traditional bullet-proof glass; it is resistant to scratches, radiation, various acids and bases.

According to Surmet Corporation, the sole producer of ALON globally, the properties of ALON are as follows:

  • Structure: Cubic-spinel
  • Density: 3.691 - 3.696 g/cm³
  • Refractive index: 1.79
  • Form: Polycrystalline
  • Melting Point: 2150°C
  • Young's Modulus: 323 GPa
  • Knoop Hardness: 1850 kg/mm2 (0.2 kg load)
  • Fracture Toughness: 2.0 - 2.9 MPa.m½
  • Flexure Strength: 380 - 700 MPa
  • Thermal Conductivity: 13 W/mK

...

Like every other ceramic, ALON starts as a powder which is then molded by heating and baking at high temperature. During this process, the powder liquefies and then quickly cools forming a solid crystalline structure. Additional polishing strengthens the aluminium alloy and also makes it very clear.

ALON is highly applicable as bulletproof glass of automobiles and warships, aerospace.


References:

  1. https://science.howstuffworks.com/transparent-aluminum-armor3.htm
  2. http://www.surmet.com/technology/alon-optical-ceramics/
  3. https://en.m.wikipedia.org/wiki/Aluminium_oxynitride
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Making a transparent metal involves advanced metallurgical techniques to manipulate the arrangement of atoms, allowing light to pass through without scattering. Researchers aim to create applications in optics, electronics, and architecture, where transparent metals could revolutionize technology and design, offering both strength and clarity. Need you can visit https://www.nytiletrims.com/product/tile-trim and gain things about stainless trims. Despite the challenges, this cutting-edge research holds the promise of transforming industries and opening up new possibilities for transparent materials in various fields.