Research Article
Structural and Optical Properties of Calcium Titanate Prepared from Gypsum
Table 1
Crystal size values derived using the average Scherrer, Scherrer straight line, and Williamson–Hall methods.
| | Material | Scherrer (nm) | Williamson–Hall (nm) | Strain |
| | CaSO4.2H2O | 40 | 45.4 | 2.2 × 10−3 | | CaSO4 | 68.7 | 60 | 8.5 × 10−5 | | Ca(OH)2 | 39.9 | 40.2 | 1.5 × 10−3 | | CaTiO3 (900°C) | 35.4 | 30.2 | 1.006 × 10−6 | | CaTiO3 (1000°C) | 45.2 | 46 | 7.3 × 10−4 |
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