Hydrolysis Reactions at the Surface of Fluorozirconate Glass
The surface reaction products associated with the hydrolysis of ZBLA glasses have been characterized using X-ray photoelectron spectroscopy. The predominant surface reaction product in water and basic solutions is a zirconium (hydr)oxyfluoride species. The compositional analyses indicate that the (hydr)oxyfluoride which forms in water has an average oxygen-to-fluorine ratio of approx. 2/5. The Zr 3d binding energy of this (hydr)oxyfluoride species was interpreted on the basis of its Pauling charge; this verified the compositional analyses and suggested a seven-coordinate surface species of the form ZrO//2F//5 or Zr(OH)//2F//5. It is proposed that zirconium (hydr)oxyfluoride is created in all aqueous solutions because of attack of Zr-F bonds by molecular water.
C. G. Pantano and R. K. Brow, "Hydrolysis Reactions at the Surface of Fluorozirconate Glass," Journal of the American Ceramic Society, American Chemical Society (ACS), Jan 1988.
The definitive version is available at http://dx.doi.org/10.1111/j.1151-2916.1988.tb05922.x
Materials Science and Engineering
Article - Journal
© 1988 American Chemical Society (ACS), All rights reserved.