Browsing ELibrary by Subject "HT-XRD"

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HT-XRD STUDY OF SYNTHETIC FERRIAN MAGNESIAN SPODUMENE: THE EFFECT OF SITE DIMENSION ON THE P21/C→C2/C PHASE TRANSITION

Camara F.; Iezzi G.; Oberti R. (2003)

Ferrian magnesian spodumene was synthesized in the MLFSH system at P=0.4 GPa, T=700 °C, fO2=NNO+2.3. The space group at room T is P21/c [a=9.638(3) A, b=8.709(2) A, c=5.258(2) A, β=109.83(3)°, V=415.2 A3]. The structure ...
THE P21/M ↔ C2/M PHASE TRANSITION IN SYNTHETIC AMPHIBOLE NA NAMG MG5 SI8 O22 (OH)2: THERMODYNAMIC AND CRYSTAL-CHEMICAL EVALUATION

Cámara F.; Oberti R.; Iezzi G.; Della Ventura G. (2003)

The P21/mC2/m displacive phase transition in the synthetic end-member amphibole Na NaMg Mg5 Si8 O22 (OH)2 has been studied by monitoring changes in unit-cell parameters and the intensities of superlattice reflections at ...

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