skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Methods of synthesizing hydroxyapatite powders and bulk materials

Abstract

Methods are provided for producing non-porous controlled morphology hydroxyapatite granules of less than 8 {micro}m by a spray-drying process. Solid or hollow spheres or doughnuts can be formed by controlling the volume fraction and viscosity of the slurry as well as the spray-drying conditions. Methods of providing for homogeneous cellular structure hydroxyapatite granules are also provided. Pores or channels or varying size and number can be formed by varying the temperature at which a hydroxyapatite slurry formed in basic, saturated ammonium hydroxide is spray-dried. Methods of providing non-porous controlled morphology hydroxyapatite granules in ammonium hydroxide are also provided. The hydroxyapatite granules and bulk materials formed by these methods are also provided. 26 figs.

Inventors:
Issue Date:
Research Org.:
Univ. of California (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
321254
Patent Number(s):
5858318
Application Number:
PAN: 8-757,849
Assignee:
PTO; SCA: 360601; 360602; PA: EDB-99:030612; SN: 99002064436
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 12 Jan 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; APATITES; HYDROXY COMPOUNDS; SPRAY DRYING; MORPHOLOGY; PROCESS CONTROL

Citation Formats

Luo, P. Methods of synthesizing hydroxyapatite powders and bulk materials. United States: N. p., 1999. Web.
Luo, P. Methods of synthesizing hydroxyapatite powders and bulk materials. United States.
Luo, P. Tue . "Methods of synthesizing hydroxyapatite powders and bulk materials". United States.
@article{osti_321254,
title = {Methods of synthesizing hydroxyapatite powders and bulk materials},
author = {Luo, P},
abstractNote = {Methods are provided for producing non-porous controlled morphology hydroxyapatite granules of less than 8 {micro}m by a spray-drying process. Solid or hollow spheres or doughnuts can be formed by controlling the volume fraction and viscosity of the slurry as well as the spray-drying conditions. Methods of providing for homogeneous cellular structure hydroxyapatite granules are also provided. Pores or channels or varying size and number can be formed by varying the temperature at which a hydroxyapatite slurry formed in basic, saturated ammonium hydroxide is spray-dried. Methods of providing non-porous controlled morphology hydroxyapatite granules in ammonium hydroxide are also provided. The hydroxyapatite granules and bulk materials formed by these methods are also provided. 26 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}