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Title: Rare earth oxide fluoride nanoparticles and hydrothermal method for forming nanoparticles

Patent ·
OSTI ID:874119
 [1];  [1]
  1. Richland, WA
+ Show Author Affiliations

A hydrothermal method for forming nanoparticles of a rare earth element, oxygen and fluorine has been discovered. Nanoparticles comprising a rare earth element, oxygen and fluorine are also described. These nanoparticles can exhibit excellent refractory properties as well as remarkable stability in hydrothermal conditions. The nanoparticles can exhibit excellent properties for numerous applications including fiber reinforcement of ceramic composites, catalyst supports, and corrosion resistant coatings for high-temperature aqueous solutions.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC06-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
US 6316377
Application Number:
09/393,990
OSTI ID:
874119
Country of Publication:
United States
Language:
English

References (6)

Synthesis of potassium hexatitanate fibers by the hydrothermal dehydration method journal March 1979
Continuous hydrothermal processing of nano-crystalline particulates for chemical-mechanical planarization journal October 1998
The Crystal Structure and Nonstoichiometry of Rare Earth Oxyfluoride journal March 1971
Rapid expansion of supercritical fluid solutions: solute formation of powders, thin films, and fibers journal November 1987
The Reaction of Oxides with Water at High Pressures and Temperatures journal January 1964
Studies of Rare Earth Oxyfluorides in the High-temperature Region journal January 1972

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Related Subjects

rare
earth
oxide
fluoride
nanoparticles
hydrothermal
method
forming
element
oxygen
fluorine
discovered
comprising
described
exhibit
excellent
refractory
properties
remarkable
stability
conditions
numerous
applications
including
fiber
reinforcement
ceramic
composites
catalyst
supports
corrosion
resistant
coatings
high-temperature
aqueous
solutions
aqueous solution
rare earth
ceramic composite
earth element
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