TY - JOUR
T1 - The indentation fracture toughness (kc) and its parameters
T2 - Fracture and Flow of Advanced Glasses
AU - Dériano, S.
AU - Jarry, A.
AU - Rouxel, T.
AU - Sangleboeuf, J. C.
AU - Hampshire, S.
PY - 2004/9/15
Y1 - 2004/9/15
N2 - The fracture toughness of several glasses, including soda-lime-silica and aluminosilicate glasses, was measured by both the indentation fracture (IF) and the single-edge notched beam (SENB) techniques. The flow densification mechanism occurring during indentation for silica-rich compositions leads to discrepancies between the two methods. The influence of the indentation load and the post-indentation fatigue duration on the indentation on the crack length and on the fracture toughness measurement were investigated. Fatigue curves (V-K) were obtained directly from indentation experiments and fatigue parameters were derived. The sub-critical crack growth resistance was found to be improved by increasing the silica content. In comparison with the studied oxide glasses, a Y-SiAlON oxynitride glass exhibits much greater fatigue resistance. The fatigue phenomenon has a major effect on the estimation of KC from indentation-cracking measurements.
AB - The fracture toughness of several glasses, including soda-lime-silica and aluminosilicate glasses, was measured by both the indentation fracture (IF) and the single-edge notched beam (SENB) techniques. The flow densification mechanism occurring during indentation for silica-rich compositions leads to discrepancies between the two methods. The influence of the indentation load and the post-indentation fatigue duration on the indentation on the crack length and on the fracture toughness measurement were investigated. Fatigue curves (V-K) were obtained directly from indentation experiments and fatigue parameters were derived. The sub-critical crack growth resistance was found to be improved by increasing the silica content. In comparison with the studied oxide glasses, a Y-SiAlON oxynitride glass exhibits much greater fatigue resistance. The fatigue phenomenon has a major effect on the estimation of KC from indentation-cracking measurements.
UR - http://www.scopus.com/inward/record.url?scp=4944262806&partnerID=8YFLogxK
U2 - 10.1016/j.jnoncrysol.2004.07.021
DO - 10.1016/j.jnoncrysol.2004.07.021
M3 - Conference article
AN - SCOPUS:4944262806
SN - 0022-3093
VL - 344
SP - 44
EP - 50
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 1-2
Y2 - 8 September 2003 through 12 September 2003
ER -