# A Simple Estimation Method of Weibull Modulus and Verification with Strength Data
## 4 Material Strength Data
### Ceramics and Glasses
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline
**Ceramics and Glasses** & **c\textgreater{}>** & **S** & **c\textgreater{}\textgreater{}\textgreater{}SD** & **m\textgreater{}obs** & **m\textgreater{}st** & **N** & **m\textgreater{}obs/m\textgreater{}st** & **Note** & **D/V** & **Ref** \\ \hline Almina (99.8\%) & 306.9 & 21.4 & 14.36 & 17.40 & 15.80 & 33 & 1.101 & Flexure strength & V & [57] \\ Almina (98\%-Corbit98) & 240.7 & 68.6 & 3.51 & 3.31 & 3.86 & 10 & 0.885 & Brazilian split test & D & [58] \\ Almina (98\%-Corbit98) & 341.5 & 56.1 & 6.09 & 5.95 & 6.70 & 8 & 0.889 & Brazilian split test & D & [58] \\ Sapphire single crystal & 703.0 & 242.0 & 2.90 & 3.40 & 3.20 & 8 & 1.064 & c-plane & V & [99] \\ Sapphire single crystal & 1061.0 & 37.20 & 2.85 & 3.41 & 3.14 & 8 & 1.087 & c-plane & V & [99] \\ Sapphire single crystal & 427.0 & 118.0 & 3.62 & 4.09 & 3.98 & 6 & 1.028 & r-plane & V & [99] \\ Sapphire single crystal & 595.0 & 150.0 & 3.97 & 4.10 & 4.36 & 12 & 0.940 & r-plane & V & [99] \\ WC current & 2910.0 & 223.0 & 13.05 & 19.00 & 14.35 & 29 & 1.324 & 8\% Ni binder & V & [47] \\ ZrO\({}_{2}\)-Th\({}_{2}\) & 1124.0 & 17.07 & 6.3 & 7.10 & 6.99 & 22 & 1.016 & Flexure strength & V & [60] \\ ZrO\({}_{2}\) & 860.3 & 343.5 & 2.50 & 2.81 & 2.76 & 33 & 1.020 & Flexure strength & V & [60] \\ Si\({}_{3}\)N\({}_{4}\) & 614.4 & 173.9 & 3.53 & 4.04 & 3.89 & 18 & 1.040 & Fracture strength & V & [60] \\ Glass & 61.7 & 6.8 & 9.05 & 10.32 & 9.95 & 40 & 1.037 & Fracture strength & D & [60] \\ Soda Line Glass & 119.7 & 20.6 & 5.82 & 5.74 & 6.40 & 24 & 0.897 & Fracture strength & V & [55] \\ Si\({}_{3}\)N\({}_{4}\) & 899.4 & 80.5 & 11.17 & 14.89 & 12.29 & 55 & 1.211 & Fracture strength & V & [55] \\ SiC & 357.9 & 42.3 & 8.47 & 9.62 & 9.32 & 75 & 1.033 & Fracture strength & V & [55] \\ ZnO & 102.4 & 5.2 & 19.80 & 20.92 & 12.78 & 109 & 0.960 & Fracture strength & V & [55] \\ Si\({}_{3}\)N\({}_{4}\) & 875.9 & 76.2 & 11.49 & 12.55 & 12.64 & 30 & 0.993 & 3 pt bend flexure strength & D & [61] \\ Si\({}_{3}\)N\({}_{4}\) & 733.3 & 77.7 & 9.43 & 10.42 & 10.38 & 27 & 1.004 & 4 pt bend flexure strength & D & [61] \\ Si\({}_{3}\)N\({}_{4}\) & 689.6 & 63.9 & 10.79 & 12.16 & 11.87 & 31 & 1.024 & Biaxial test & D & [61] \\ Porcelain CM & 86.3 & 4.3 & 20.07 & 23.60 & 22.08 & 30 & 1.069 & Dental ceramics & V & [56] \\ Glass ceramic D & 70.3 & 12.2 & 5.76 & 5.50 & 6.34 & 30 & 0.868 & Dental ceramics & V & [56] \\ Alumina-protein ICA & 429.3 & 87.2 & 4.92 & 5.70 & 5.42 & 30 & 1.053 & Dental ceramics & V & [56] \\ Leucite-porcelain IE & 83.9 & 11.3 & 7.42 & 8.60 & 8.17 & 30 & 1.053 & Dental ceramics & V & [56] \\ Alumina-feldspar-porcelain & 131.0 & 9.5 & 13.79 & 13.00 & 15.17 & 30 & 0.857 & Dental ceramics & V & [56] \\ Feldspar-porcelain VAD & 60.7 & 6.8 & 8.93 & 10.00 & 9.82 & 30 & 1.018 & Dental ceramics & V & [56] \\ Feldspar-porcelain VMK & 82.7 & 10.0 & 8.27 & 8.90 & 9.10 & 30 & 0.978 & Dental ceramics & V & [56] \\ Partially stabilized Zirconia & 913.0 & 50.2 & 18.19 & 18.40 & 20.01 & 30 & 0.920 & Dental ceramics & V & [56] \\ Fused quartz & 100.0 & 14.0 & 7.79 & 8.82 & 8.56 & 28 & 1.030 & 25 mm diameter & V & [62] \\ Fused quartz & 102.0 & 11.0 & 9.27 & 10.60 & 10.20 & 25 & 1.039 & 75 mm diameter & V & [62] \\ Fused quartz & 77.7 & 132. & 5.89 & 6.08 & 6.48 & 23 & 0.999 & 225 mm diameter & V & [62] \\ Fused quartz & 172.0 & 20.0 & 8.60 & 10.20 & 9.46 & 11 & 1.078 & 25 mm replished & V & [62] \\ Alumina & 364.0 & 45.0 & 8.09 & 9.60 & 8.90 & 32 & 1.079 & 4 pt bend flexure strength & V & [63] \\ Alumina & 444.0 & 51.0 & 8.71 & 8.80 & 9.58 & 30 & 0.919 & 3 pt bend flexure strength & V & [63] \\ Porcelain & 84.7 & 5.3 & 15.98 & 18.50 & 17.58 & 27 & 1.052 & 4 pt bend flexure strength & V & [63] \\ Porcelain & 112.0 & 8.0 & 14.00 & 18.00 & 15.40 & 26 & 1.169 & 4 pt bend flexure strength & V & [63] \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Listing of data for ceramics and glasses.