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Relative permitivity

Posted 2020年4月4日 GMT-4 06:30 COMSOL Server 1 Reply

KARTHIK KUMAR T R
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I am doing simulation, and i am in need of relative permitivity values of Cus, Fe2O3, silver and cobalt.

1 Reply Last Post 2020年4月4日 GMT-4 15:21
Dave Greve
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Posted: 5 years ago 2020年4月4日 GMT-4 15:21
  1. Coupling matrix, compliance, etc.

Usually this gets asked when users have (incorrectly) designated a linear elastic material as piezoelectric.

  1. Permittivity of metals

This is rarely needed. Maybe needed if you are modeling the penetration depth due to the skin effect on the microscopic level. Usually the right number is er = 1.

  1. Other parameters.

Not all parameters are in Comsol. When they're not, a thorough investigation of the literature is indicated.

1. Coupling matrix, compliance, etc. Usually this gets asked when users have (incorrectly) designated a linear elastic material as piezoelectric. 2. Permittivity of metals This is rarely needed. Maybe needed if you are modeling the penetration depth due to the skin effect on the microscopic level. Usually the right number is er = 1. 3. Other parameters. Not all parameters are in Comsol. When they're not, a thorough investigation of the literature is indicated.

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