scholarly journals Subcritical Crack Growth and Creep Deformation at Elevated Temperatures in Silicon Nitrides and Glass Ceramics

1995 ◽  
Vol 103 (1203) ◽  
pp. 1135-1141
Author(s):  
Takeshi OGAWA ◽  
Motohisa HIROSE ◽  
Masaya ABE ◽  
Norihiko NAKANO
Keyword(s):  
Crack Growth ◽  
Creep Deformation ◽  
Subcritical Crack Growth ◽  
Elevated Temperatures ◽  
Glass Ceramics ◽  
Silicon Nitrides

scholarly journals Evaluation of Subcritical Crack Growth in Glass Ceramics. Examination by Double Torsion Technique.

1997 ◽  
Vol 63 (607) ◽  
pp. 493-498 ◽  
Author(s):  
Kiyohiko IKEDA ◽  
Takaaki INOTANI ◽  
Koichi KAIZU ◽  
Hisashi IGAKI ◽  
Hiroyosi KIHARA
Keyword(s):  
Crack Growth ◽  
Subcritical Crack Growth ◽  
Glass Ceramics ◽  
Double Torsion

Subcritical Crack Growth Velocities (v-K Curves) of Dental Bioceramics

2012 ◽  
Vol 727-728 ◽  
pp. 1211-1216 ◽  
Author(s):  
Humberto Naoyuki Yoshimura ◽  
Carla Cristina Gonzaga ◽  
Paulo Francisco Cesar ◽  
Walter Gomes Miranda
Keyword(s):  
Crack Growth ◽  
Growth Velocity ◽  
Ceramic Composite ◽  
Subcritical Crack Growth ◽  
Artificial Saliva ◽  
Glass Ceramics ◽  
Velocity Versus ◽  
Factor V ◽  
Alumina Composite ◽  
Crack Growth Velocity

In this study the subcritical crack growth (SCG) behaviors of five dental bioceramics were evaluated in order to plot the crack growth velocity versus stress intensity factor (v-K) curves. Disc-shaped samples of two sintered porcelains, two glass-ceramics, and a glass-infiltrated ceramic composite were prepared and tested in artificial saliva using a biaxial flexure jig. The SCG parameters were evaluated by the dynamic fatigue test using five constant stress-rates and in an inert condition. Among the tested materials, the lithium disilicate glass-ceramic showed the highest susceptibility to strength degradation by SCG, whereas the glass infiltrated alumina composite showed the lowest susceptibility. The v-K curves showed that the SCG susceptibility significantly affects the crack growth velocity of the different bioceramics.

The roles of microstructure and surface energy on subcritical crack growth in glass-ceramics

2020 ◽  
Author(s):  
Pamela Ricco ◽  
Nathália de Carvalho Ramos ◽  
Tiago Moreira Bastos Campos ◽  
Viviane Oliveira Soares ◽  
Mariana de Oliveira Carlos Villas Boas ◽  
...  
Keyword(s):  
Surface Energy ◽  
Crack Growth ◽  
Subcritical Crack Growth ◽  
Glass Ceramics
Sign in / Sign up

Export Citation Format

Share Document