Period 5 element and because of its rarity, rhodium is usually alloyed with platinum or palladium and applied in high-temperature and corrosion-resistive coatings. White gold is often plated with a thin rhodium layer to improve its optical impression while sterling silver is often rhodium plated for tarnish resistance. Rhodium detectors are used in nuclear reactors to measure the neutron flux level. Palladium is a chemical element with the chemical symbol Pd and an atomic number of 46. It is a rare and lustrous silvery-white metal discovered in 1803 by William Hyde Wollaston. He named it after the asteroid Pallas, which was itself named
Warburg element There are two special conditions of finite-length Warburg elements: the Warburg Short (W) for a transmissive boundary, and the Warburg Open (W) for a reflective boundary. This element describes the impedance of a finite-length diffusion with transmissive boundary. It is described by the following equation: This element describes the impedance of a finite-length diffusion with reflective boundary. It is described by the following equation: Warburg element The Warburg diffusion element is an equivalent electrical circuit component that models the diffusion process in dielectric spectroscopy. That element is named after German physicist Emil Warburg. A Warburg impedance element can be difficult