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Online since: March 2004
Authors: M. Li, Jing Sun, Han Lian Liu, Chuan Zhen Huang, Sui Lian Wang, Xing Ai
Nevertheless, although the flexural strength and hardness of the self-toughening ceramic
tool YL16A is marginally lower than those of HPSi3N4, the mechanical properties of YL16A is rather
superior than conventional ceramic tools.
40 Advances in Grinding and Abrasive Processes
Table 1 Mechanical properties of various tool materials
Mechanical properties YL16A HPSi3N4 SG4
Flexural strength �bb [MPa] 845 896 800
Hardness HV [kg/mm2] 1800 2200 2300
Fracture toughness KIC [MPa.mm0.5] 10.6 5.0 4.6
Wear and Fracture Resistance in Machining.
Online since: August 2012
Authors: Guerold Sergueevitch Bobrovinitchii, Sérgio Neves Monteiro, Márcia G. Azevedo, Ana Lucia D. Skury
Sample
Density (g/cm3)
Hardness (HRa)
Flexural Strength (MPa)
A
5.53
90.6
880
B
5.78
92.3
925
C
5.61
91.8
896
D
5.74
92.5
916
E
5.82
92.4
892
F
5.92
92.6
902
G
5.79
92.8
840
H
6.02
92.1
890
Table 3 displays the results corresponding to the influence of the total amount of W-Mo binder on the density and strength of the insert.