## 4 Conclusions  
From the performed experiments and statistical analysis of the results, the following conclusions can be derived. The high value of shape parameter \(m=14.383\) indicated that the bending strength of ZrO\({}_{2}\) stabilized with 5 wt.% CeO\({}_{2}\) samples exhibited low variability. This result suggested consistent material performance. The characteristic strength \(\sigma_{0}=461.15\) MPa was relatively high, which proved that the material could withstand substantial stress before failure. The linearity of the plot shows a good fit to the Weibull distribution, suggesting that the model was appropriate for prediction of the probability of failure under respective loads. The small scattering of the experimental points from the straight line indicates the high quality and repeatability of the manufacturing process, and subsequent uniformity of the material properties. The high value of the shape parameter indicates the uniformity and repeatability of the hardness reached by the fabricated specimens. A scale parameter of \(\sigma_{0}=21.535\) GPa suggests the material can maintain high hardness levels under typical work conditions. Based on the hardness and strength Weibull distribution analysis, it can be concluded that the proper quality of ZrO\({}_{2}\)-5 wt.% CeO\({}_{2}\) was reached and can be kept in the subsequent stages \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Phase**} & \multirow{2}{*}{**Phase**} & \multirow{2}{*}{**Fitting Parameters**} & \multicolumn{3}{c}{**Statistics of the Fit**} & \multicolumn{3}{c}{**Weibull Distribution Parameters**} & \multirow{2}{*}{**Am \({}^{*}\) [deg]**} & \multirow{2}{*}{**Median**} \\  & & & & & & & & & & \\  & & & & & & & & & & \\ \hline I & 0.5\% & \(18.438\pm 2.75\) & \(-55.952\pm 7.967\) & 0.9782 & 0.125 & 0.0156 & \(18.438\pm 2.75\) & \(20.793\pm 3.38\) & 1.24 & 20.384 \\ \hline II & 99.1\% & \(9.225\pm 1.161\) & \(-28.415\pm 3.502\) & 0.9626 & 0.138 & 0.0193 & \(9.225\pm 1.161\) & \(21.762\pm 4.19\) & \(-1.84\) & 21.648 \\ \hline III & 0.4\% & \(10.718\pm 1.875\) & \(-32.817\pm 5.856\) & 0.9159 & 0.076 & 0.0058 & \(10.718\pm 1.875\) & \(21.367\pm 6.77\) & \(-0.98\) & 20.648 \\ \hline \hline \end{tabular}  
* The difference between the slope of the total Weibull model and linear fit (phase I, II, or III) converted to degrees.  
\end{table} 
Table 9: The results of the linear fitting of three regions, along with the derived Weibull distribution parameters. of the research program on the electroconsolidation process. In particular, the analysis provided a solid ground for preparation of the modified, improved device prototype. It appears that the variability of the Weibull distribution parameters is associated with the temperature gradient during the process of sintering. The experimental evidence and statistical analysis reveal an influence of the m-phase, which has lower symmetry and, therefore, its addition make ceramic weaker and softer. Furthermore, their progressive replacement by the t-phase, which has higher symmetry, makes ceramic both harder and stronger. Reducing the mol% increases the risk of the appearance of the highest addition of the monoclinic phase; increasing it is unfavorable from the point of view of the sintering process. Statistical and manufacturing evidence suggests that the choice of 5%/mol is optimal. The results of the research demonstrated that the sintered specimens sintered with a novel electroconsolidation method out of ceria-stabilized zirconia powder exhibited high strength and retained high hardness. Repeatable sintering conditions and the addition of 5 mol% CeO\({}_{2}\) ensured the reproducibility of the high-quality properties of the tested ceramic. They reveal the high sensitivity of the nanopowders (their structure and grain size) to the temperature gradient. Further improvement can be reached through optimization of the synthesis route, modification of the ceria content, and experiments with altered sintering conditions.