TY - JOUR
AU1 - Lee, Burtrand I.
AU2 - Samuels, William D.
AU3 - Wang, Li-Qiong
AU4 - Exarhos, Gregory J.
AB - Monolithic gels of phosphate ceramics were synthesized using PO(OH)3−x(OR)x and alkoxides of silicon and titanium. The PO(OH)3−x(OR)x species were synthesized from the reaction of P2O5 and ethanol or n-butanol, and the products consisted of approximately equal molar amounts of mono- and dialkyl phosphate. The phosphate gels containing titanium lost less phosphorus than from the gels of silicon/phosphorus upon firing of gels in air. At phosphorus contents above 60 mole %, the gels were completely crystallized upon firing at temperatures above 700 °C, while the gels containing zinc and alkali metals remained amorphous after firing at 850 °C. Solid state nuclear magnetic resonance spectroscopy showed that all of the silicon is hexacoordinated in the phosphate gels containing silicon and titanium upon firing at temperatures above 520 °C
TI - Sol-gel synthesis of phosphate ceramic composites I
JF - Journal of Materials Research
DO - 10.1557/jmr.1996.0017
DA - 1996-01-01
UR - https://www.deepdyve.com/lp/springer-journals/sol-gel-synthesis-of-phosphate-ceramic-composites-i-6c88Ymaxb0
SP - 134
EP - 143
VL - 11
IS - 1
DP - DeepDyve
ER -