Nathan Zechar

4 Questions 5 Answers 0 Followers

Questions related from Nathan Zechar

FDTD - How do I address faster than light travel due to permittivity less than 1 but greater than 0 in FDTD simulations?

I am observing non-physical phenomena in my FDTD simulations when using a permittivity of less than 1 but greater than 0 (plasma). What I observe are wave fronts traveling at the phase velocity....

30 August 2021 7,712 13 View

FDTD - How to model when tensors are not symmetric positive definite?

I'm currently attempting a 3D FDTD simulation where I'm modeling a plasma as a dielectric tensor based off a frequency dependent Appleton Hartree dispersion relation. The inversion of the...

31 July 2021 4,544 3 View

High temperature epoxy coating for the purpose of inductive heating?

Is it possible to add metallic power (Fe, Co) to a type of epoxy, to create a "paint" that is susceptible to inductive heating? I have attempted to add Iron power to a carbon based high...

16 August 2019 9,422 3 View

Low thermal expansion. Low electrically resistive oxide layer. Creep resistant metal/alloy?

Hello, I am looking for a metal/alloy for an application that involves a 1000 Celsius environment exposed to atmospheric air. The material properties of interest are - Low thermal expansion...

19 January 2019 1,800 2 View