Brinelln.
/brɪˈnɛl/ Used attributively to designate Brinell's method (introduced c1900) of measuring the hardness of substances. (See quot. 1954.)
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the world > matter > constitution of matter > hardness > [noun] > measurement or instruments for determining
sclerometer1879
Scleroscope1907
Shore Scleroscope1908
Brinell1915
hardometer1919
Rockwell1920
indenter1929
1915 Proc. Amer. Soc. Testing Materials 15 47 (title) Relation between Brinell Hardness and Scleroscope Hardness.
1915 Proc. Amer. Soc. Testing Materials 15 47 There was very little difference noted in the hardness at the center, or the outside, and a Brinell test was then made... The diameter of the depression was measured under a microscope and the corresponding Brinell number calculated.
1916 Metal Industry 25 Aug. 236 (title) Testing non-ferrous metals for hardness: application of the Brinell method.
1916 Metal Industry 25 Aug. 236 A series of combined microscopic and Brinell hardness tests.
1954 Gloss. Terms Iron & Steel (B.S.I.) i. 7 Brinell hardness test, a test to determine hardness by pressing a hard steel ball of known diameter under a standard load into the surface of the material and measuring the diameter of the indentation produced.
This entry has not yet been fully updated (first published 1972; most recently modified version published online September 2018).
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n.1915