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Shock wave induced phase transition in \alpha-FePO_4 |
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| Authors: | KD Joshi N Suresh G Jyoti SK Kulshreshtha SC Gupta SK Sikka |
| Institution: | (1) High Pressure Physics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India , IN;(2) Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India E-mail : hppd@magnum.barct1.ernet.in , IN |
| Abstract: | Shock wave induced response of the berlinite form of FePO has been investigated up to 8.5 GPa. The X-ray diffraction measurements on the shock recovered samples reveal transition to the mixture of an amorphous phase and an orthorhombic phase around 5 GPa. The proportion of the amorphous material in the recovered sample is found to decrease at higher pressure. The results are interpreted in terms of a three-level free energy diagram for the crystal to amorphous transitions. Received 26 May 1997 / Accepted 1 September 1997 |
| Keywords: | :Shock wave Phase transition Berlinate FePO $_4$ Amorphous |
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