Title: Method for fabricating apatite crystals and ceramics

Abstract

The present invention provides a method of crystallizing Yb:C-FAP [Yb.sup.3+:Ca.sub.5(PO.sub.4).sub.3F], by dissolving the Yb:C-FAP in an acidic solution, following by neutralizing the solution. The present invention also provides a method of forming crystalline Yb:C-FAP by dissolving the component ingredients in an acidic solution, followed by forming a supersaturated solution.

Inventors:

Soules, Thomas F.; Schaffers, Kathleen I.; Tassano, Jr., John B.; Hollingsworth, Joel P.

Issue Date:

Tue Sep 10 00:00:00 EDT 2013

Research Org.:

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1092934

Patent Number(s):

8529859

Application Number:

13/043,072

Assignee:

Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Classifications (CPCs):

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

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C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B25/32 - Phosphates of magnesium, calcium, strontium, or barium
C01B25/455 - containing halogen {

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B2235/3208 - Calcium oxide or oxide-forming salts thereof, e.g. lime
C04B2235/3212 - Calcium phosphates, e.g. hydroxyapatite
C04B2235/3213 - Strontium oxides or oxide-forming salts thereof
C04B2235/3215 - Barium oxides or oxide-forming salts thereof
C04B2235/3224 - Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
C04B2235/3229 - Cerium oxides or oxide-forming salts thereof
C04B2235/44 - Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
C04B2235/442 - Carbonates
C04B2235/444 - Halide containing anions, e.g. bromide, iodate, chlorite
C04B2235/445 - Fluoride containing anions, e.g. fluosilicate
C04B2235/447 - Phosphates or phosphites
C04B2235/5276 - Whiskers, spindles, needles or pins
C04B2235/5292 - Flakes, platelets or plates
C04B35/447 - based on phosphates {, e.g. hydroxyapatite}
C04B35/62268 - {Fibres based on metal phosphorus oxides, e.g. phosphates}

C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH

C30B29/10 - Inorganic compounds or compositions
C30B29/22 - Complex oxides
C30B7/00 - Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions

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DOE Contract Number:  

AC52-07NA27344

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY