A sensitive pyramidal-diamond tool for indentation measurements

[1] CROSBY CH, 1861, REPORTS EXPT METAL C

[2] Heyer RH., 1937, PROC AM SOC TESTING, VII, P119

[3] KNOOP F, Patent No. 2091995

[4] MARTEL, 1895, COMM METHODES ESSA A, V3, P261

[5] ONEIL H, 1934, HARDNESS METALS MEAS

[6] OSMOND MF, 1895, COMM METHODES ESSA A, V3, P279

[7] Paffenbarger G. C., 1938, J AM DENT ASSOC, V25, P32

[8] PETERS CG, 1936, GLASS IND, V17, P153

[9] PETRENKO N, 1936, J RES NBS, V17, P59

[10] SMITH, 1925, J IRON STEEL I, V61, P285

[1] CROSBY CH, 1861, REPORTS EXPT METAL C

[2] Heyer RH., 1937, PROC AM SOC TESTING, VII, P119

[3] KNOOP F, Patent No. 2091995

[4] MARTEL, 1895, COMM METHODES ESSA A, V3, P261

[5] ONEIL H, 1934, HARDNESS METALS MEAS

[6] OSMOND MF, 1895, COMM METHODES ESSA A, V3, P279

[7] Paffenbarger G. C., 1938, J AM DENT ASSOC, V25, P32

[8] PETERS CG, 1936, GLASS IND, V17, P153

[9] PETRENKO N, 1936, J RES NBS, V17, P59

[10] SMITH, 1925, J IRON STEEL I, V61, P285