2011/06/01 by A. A. Mills · 1 citation
Engineering · #Mechanics and Biomechanics Studies #Percussion #Bar (unit) #Magnet #Marie curie #Ferrous #Materials science #Magnetization #Metallurgy #Steel bar #Carbon steel #Law #Art #Mechanical engineering #Engineering #Composite material #Physics #Political science #Magnetic field #Business #Acoustics #Meteorology
paper · doi:10.1098/rsnr.2011.0014
openalex publication_date 2011/06/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/05/21
Abstract In his De Magnete William Gilbert claims that it is possible to make a magnet by hammering a red-hot bar of wrought iron arranged north–south on an anvil. This is contrary to modern ideas concerning the ‘Curie temperature’ (770°C for carbon steel), and to the recognized susceptibility of steel magnets to mechanical abuse. It has proved impossible to replicate Gilbert's technique experimentally. Only lengthy cold hammering of hardened carbon steel specimens on a large ferrous anvil produced weak permanent magnets.