Details

Autor(en) / Beteiligte

• Sanghera, J.S.
• Sachon, M.G.
• Hart, P.
• Aggarwal, I.D.

Titel

Oxyfluoride nucleating crystals in fluorozirco-hafnate glasses

Ist Teil von

• Materials letters, 1990-11, Vol.10 (4), p.181-186

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

1990

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• The effect of Al 2O 3 on the thermal stability of a fluorozirco-hafnate glass was investigated using X-ray diffractometry, optical microscopy and scanning/transmission electron microscopy. While the as-quenched glasses were crystal-free, subsequent heat treatment at 355°C for 10 min led to crystallization in the oxide-doped glasses. However, the oxide-free glass did not exhibit crystallization on heat treatment. EDX and EELS analysis of the heat-treated samples revealed that the crystals were nucleated by an oxyfluoride phase of the type, Hf a Zr b O c F d .