Any type of material that expands with electricity?

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SUMMARY

This discussion centers on materials that expand with the application of electricity, specifically focusing on "memory metals" and piezoelectric materials like quartz. Memory metals, or shape-memory alloys, exhibit significant shape changes when subjected to electrical stimuli. Piezoelectric materials, while capable of expansion, do so minimally, as indicated by their use in crystal oscillators. The conversation also touches on electromagnetic principles, suggesting that using a magnet and coil can produce displacement, as seen in speaker technology.

PREREQUISITES
  • Understanding of shape-memory alloys and their properties
  • Knowledge of piezoelectric materials and their applications
  • Familiarity with electromagnetic principles, particularly in relation to displacement
  • Basic concepts of crystal oscillators and their function
NEXT STEPS
  • Research the properties and applications of shape-memory alloys
  • Explore piezoelectric materials and their expansion characteristics
  • Investigate the principles of electromagnetism in relation to displacement mechanisms
  • Learn about the design and function of crystal oscillators in electronic devices
USEFUL FOR

Engineers, materials scientists, and anyone interested in the applications of electricity in material science and electronic devices.

goleynik
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Is there any type of liquid or solid, or any material that will expand with the addition of electricity, or vice versa?
 
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goleynik said:
Is there any type of liquid or solid, or any material that will expand with the addition of electricity, or vice versa?

Welcome to the PF.

Have you looked at "memory metals" http://en.wikipedia.org/wiki/Shape-memory_alloy

.
 
piezoelectric materials. even quartz has this property and its used in crystal oscillators for electronic applications.
 
I have read about the smart metals but I was looking for something that does not need to be heated.

and for the quartz how much does it actually expand when the current is applied?
 
goleynik said:
I have read about the smart metals but I was looking for something that does not need to be heated.

and for the quartz how much does it actually expand when the current is applied?

Not much: http://en.wikipedia.org/wiki/Piezoelectricity#Actuators

If you want some real expansion/displacement, how about using a magnet and a coil? That is how speakers turn electric current into displacement...
 
Yea but I was really looking for some type of liquid.

Know of any?
 

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