Harvey process


  • Webster's Revised Unabridged Dictionary
    • Harvey process (Metal) A process of hardening the face of steel, as armor plates, invented by Hayward A. Harvey of New Jersey, consisting in the additional carburizing of the face of a piece of low carbon steel by subjecting it to the action of carbon under long-continued pressure at a very high heat, and then to a violent chilling, as by a spray of cold water. This process gives an armor plate a thick surface of extreme hardness supported by material gradually decreasing in hardness to the unaltered soft steel at the back.
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In literature:

The Harvey process of making armor consists in taking an all-steel plate and carbonizing the face.
"Scientific American Supplement, No. 803, May 23, 1891" by Various
Harvey was followed to the grave by a procession of white-smocked navvies.
"Showell's Dictionary of Birmingham" by Thomas T. Harman and Walter Showell
Harvey's Process of Annealing Armor Plate.
"The Progress of Invention in the Nineteenth Century." by Edward W. Byrn

In science:

We have for example the Callan-Giddings-Harvey-Strominger (CGHS) model , which has been used to describe backreaction effects in the black hole evaporation process and the Jackiw-Teitelboim theory (JT) [6,7] that was historically the first 2D dilaton gravity theory.
Trace anomaly and Hawking effect in generic 2D dilaton gravity theories