|
Crystal Research and Technology |
Cryst. Res. Technol. 43, 121 (2008) - Abstract -
Flux growth of straw-like rutile monocrystals
A. Bloise, E. Barrese*, and G. Ferraris
Dipartimento di Scienze Mineralogiche e Petrologiche, Università di Torino - Via Valperga Caluso, 35, 10125, Torino, Italy
*Dipartimento di Scienze della Terra, Università della Calabria - Via Pietro Bucci, 87036 Arcavacata di Rende CS, Italy
| Keywords | flux crystal growth, straw-like rutile crystals, titanium dioxide |
| PACS | 81.10.-h, 61.72.-y |
| DOI | 10.1002/crat.200711069 |
Millimetric straw-like rutile monocrystals were grown by the flux growth technique. A suitable mixture of flux (MoO3, V2O5, Li2CO3) and amorphous TiO2 gel was slowly cooled down to 750°C from 1250°C or 1350°C. The best yields of straw-like rutile were obtained with a nutrient/flux ratio and a cooling rate in the range 0.015-0.006 and 1.8-1.9 K/h, respectively. The hollowed crystals were characterized by powder and single-crystal X-ray diffraction, scanning electron microscopy, microthermometry, and μ-Raman spectroscopy. As for skeletal crystal, the formation of axial canals in rutile is attributed to a lack of nutrient due to the viscosity of the melt and the high growth rate along [001].
If you have come directly to this page, click this symbol 
to go to the CRT homepage.
The full text of this paper in pdf-Format is available at Wiley Interscience.