Hydrothermal growth of lanthanide vanadate crystals for use...

Details Hydrothermal growth of lanthanide vanadate crystals for use... Hydrothermal growth of lanthanide vanadate crystals for use...

2007-05-01

2007-05-01

Vanoy, Timothy C. (Department: 1754)

Chemistry of inorganic compounds

Rare earth compound

C423S594800, C423S595000, C423S598000

Reexamination Certificate

active

11029291

ABSTRACT:
The present invention is directed to lanthanide vanadate crystals having the formula LnVO4, wherein Ln is selected from La, Nd, Ce, Pr, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, and combinations of at least two thereof, made by a hydrothermal method for a wide variety of end-use applications. The present method requires reacting a source of Ln3+ions and a source of VO43+ions, wherein Ln is selected from the group consisting of La, Nd, Ce, Pr, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y and combinations of at least two thereof, in an aqueous solution at a temperature of from about 350° C. to about 600° C. and at a pressure of from about 8 kpsi to about 40 kpsi, the aqueous solution comprising hydroxide ions at a concentration of from about 0.01 to about 5 molarity. Specifically, when made by the present hydrothermal method, single crystals of sufficient size for use in a variety of optical applications are readily formed.

REFERENCES:
patent: 3485768 (1969-12-01), Ropp
patent: 3501412 (1970-03-01), Ropp
patent: 3505241 (1970-04-01), Mathers
patent: 5-238897 (1993-09-01), None
patent: 9-83058 (1997-03-01), None
patent: 2003-149442 (2003-05-01), None
Byrappa & Ohachi eds., Crystal Growth Technology, Williams Andrew Pubs., (2002), Chapter 10 pp. 335-363, no month.
Byrappa & Nirmala, Ind. J. Phys 73A(5), (1999), pp. 621-632, no month.

Affiliated with

Also associated with

Rating

Hydrothermal growth of lanthanide vanadate crystals for use... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrothermal growth of lanthanide vanadate crystals for use..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrothermal growth of lanthanide vanadate crystals for use... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3818666