overpoledadj.
/ˌəʊvəˈpəʊld/, U.S. /ˌoʊvərˈpoʊld/ΚΠ
1758 R. Brown Compl. Farmer (1760) ii. 113 Neither can you expect a crop [of hops] from an over-poled ground.
2. Metallurgy. Of copper: brittle through being poled too much (cf. overpole v. 2).
ΘΚΠ
society > occupation and work > industry > working with specific materials > working with metal > [adjective] > separating or refining processes > of specific metals
run-out1812
Orford1895
overpoled1910
society > occupation and work > materials > derived or manufactured material > metal > base metal > [adjective] > of, like, or relating to copper > types or qualities of copper
blistered1870
shot1877
under-poled1881
overpoled1910
1861 J. Percy Metall.: Fuel 274 One of the most characteristic properties of commercial overpoled copper is brittleness.
1890 Sci. Extracts 171 The removal of this small quantity of oxygen will suffice to render copper overpoled and useless.
1910 Jrnl. Inst. Metals 4 207 In the case of ‘overpoled’ copper the gases were released in such a quantity as to not only neutralise the effect of shrinkage, but to elevate the surface of the ingot.
1937 S. L. Archbutt & W. E. Prytherch Effect of Impurities in Copper iii. 34 Overpoled metal is not in a satisfactory condition to withstand rolling and fabrication for two reasons.
1964 H. Hodges Artifacts iv. 70 Over-poled copper may thus be not only brittle but full of blow-holes.
This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).
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adj.1758