publication . Patent . 2004

Piezoelectric ceramic-reinforced metal matrix composites

Open Access English
  • Published: 21 May 2004
  • Publisher: United States Patent and Trademark Office
  • Country: United States
Composite materials comprising piezoelectric ceramic particulates dispersed in a metal matrix are capable of vibration damping. When the piezoelectric ceramic particulates are subjected to strain, such as the strain experienced during vibration of the material, they generate an electrical voltage that is converted into Joule heat in the surrounding metal matrix, thereby dissipating the vibrational energy. The piezoelectric ceramic particulates may also act as reinforcements to improve the mechanical properties of the composites. The composite materials may be used in various structural components in vehicles, aircraft, spacecraft, buildings and tools.
free text keywords: 310/327, C22C32/00, H01L41/183
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Patent . 2004
Provider: VTechWorks
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