Ca 2 Fe 2 O 5 shows a first-order phase transition from space group Pnma to a modulated structure described in superspace group Immað00gÞs00. The transition starts at 947 K during heating and the reverse transition in cooling conditions starts at 923 K, as determined from differential thermal analys
✦ LIBER ✦
Low-Temperature Structural Phase Transition in ZrO2–12 mol% CeO2 Studied by Infrared Spectroscopy and X-ray Diffractometry
✍ Scribed by Toshiya Hirata; Haiyan Zhu; Takao Furubayashi; Isao Nakatani
- Book ID
- 110826176
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 336 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0002-7820
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The phase transition in [Cr(NH 3 ) 6 ](BF 4 ) 3 at T h c ¼ 238:42 K (on heating) and at T c c ¼ 237:93 K (on cooling) was determined by differential scanning calorimetry (DSC). Fourier transform far infrared (FT-FIR) and middle infrared (FT-MIR) spectra were measured in the temperature range of 20 -