Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 233-238 |
| Journal | Journal of Biomedical Materials Research, Part B: Applied Biomaterials |
| Volume | 65B |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2003 |
Fingerprint
Cite this
}
Subcritical crack growth behavior of Al2O3-glass dental composites. / Zhu, Q.; With, de, G.; Dortmans, L.J.M.G.; Feenstra, F.
In: Journal of Biomedical Materials Research, Part B: Applied Biomaterials, Vol. 65B, No. 2, 2003, p. 233-238.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Subcritical crack growth behavior of Al2O3-glass dental composites
AU - Zhu, Q.
AU - With, de, G.
AU - Dortmans, L.J.M.G.
AU - Feenstra, F.
PY - 2003
Y1 - 2003
N2 - The purpose of this study is to investigate the subcrit. crack growth (SCG) behavior of alumina-glass dental composites. Alumina-glass composites were fabricated by infiltrating molten glass to porous alumina preforms. Rectangular bars of the composite were subject to dynamic loading in air, with stressing rates ranging from 0.01 MPa/s to 2 MPa/s. The SCG parameter n was detd. to be 22.1 for the composite, which is substantially lower than those of high-purity dense alumina. Investigations showed that glass phases are responsible for the low n value as cracks propagate preferentially within glass phases or along the interface between glass phases and alumina phases, due to the fact that glasses are more vulnerable to chem. attacks by water mols. under stress corrosion conditions. The SCG behavior of the infiltration glass was also investigated and the SCG parameter n was detd. to be 18.7.
AB - The purpose of this study is to investigate the subcrit. crack growth (SCG) behavior of alumina-glass dental composites. Alumina-glass composites were fabricated by infiltrating molten glass to porous alumina preforms. Rectangular bars of the composite were subject to dynamic loading in air, with stressing rates ranging from 0.01 MPa/s to 2 MPa/s. The SCG parameter n was detd. to be 22.1 for the composite, which is substantially lower than those of high-purity dense alumina. Investigations showed that glass phases are responsible for the low n value as cracks propagate preferentially within glass phases or along the interface between glass phases and alumina phases, due to the fact that glasses are more vulnerable to chem. attacks by water mols. under stress corrosion conditions. The SCG behavior of the infiltration glass was also investigated and the SCG parameter n was detd. to be 18.7.
U2 - 10.1002/jbm.b.10007
DO - 10.1002/jbm.b.10007
M3 - Article
C2 - 12687715
VL - 65B
SP - 233
EP - 238
JO - Journal of Biomedical Materials Research, Part B: Applied Biomaterials
JF - Journal of Biomedical Materials Research, Part B: Applied Biomaterials
SN - 1552-4973
IS - 2
ER -