Research Article
Mechanical Behaviour and Fracture Mechanics of Praseodymium Modified Lead Titanate Ceramics Prepared by Solid-State Reaction Route
Table 3
Data regarding crack length “
,” half of diagonal length “
,” value of
, and nature of cracks.
| | Applied load () (N) | Crack length () (µm) | Half diagonal length () (µm) | | Nature of cracks |
| | 0.245 | — | 3.09 | — | — | | 0.49 | — | 4.5 | — | — | | 0.98 | 11.45 | 6.45 | 1.77 | Palmqvist | | 1.96 | 117.8 | 9.5 | 1.87 | Palmqvist | | 2.94 | 219.26 | 11.72 | 1.64 | Palmqvist | | 4.903 | 24.86 | 15.33 | 1.62 | Palmqvist |
|
|
