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Processing of hydroxylapatite coatings on titanium alloy bone prostheses

Patent ·
OSTI ID:871877
 [1];  [2];  [3];  [3]
  1. Espanola, NM
  2. Santa Clara, CA
  3. Phoenix, AZ
+ Show Author Affiliations
Processing of hydroxylapatite sol-gel films on titanium alloy bone prostheses. A method utilizing non-line-of-sight ion beam implantation and/or rapid thermal processing to provide improved bonding of layers of hydroxylapatite to titanium alloy substrates while encouraging bone ingrowth into the hydroxylapatite layers located away from the substrate, is described for the fabrication of prostheses. The first layer of hydroxylapatite is mixed into the substrate by the ions or rapidly thermally annealed, while subsequent layers are heat treated or densified using ion implantation to form layers of decreasing density and larger crystallization, with the outermost layers being suitable for bone ingrowth.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM
DOE Contract Number:
W-7405-ENG-36
Assignee:
Regents of University of California (Los Alamos, NM)
Patent Number(s):
US 5817326
OSTI ID:
871877
Country of Publication:
United States
Language:
English

References (8)

Ion Mixing of Pulsed Laser Deposited Hydroxylapatite (HA) journal January 1994
Fracture Mechanics of Functionally Graded Materials journal January 1995
Ion Beam Mixing of Titanium Overlayers with Hydroxyapatite Substrates journal January 1994
Ion-Beam-Induced Densification of Zirconia Sol-Gel Thin Films journal May 1993
Ion-beam-induced densification of sol-gel ceramic thin films journal March 1994
Hydroxyapatite coatings by a polymeric route journal May 1992
Rapid thermal processing of zirconia thin films produced by the sol‐gel method journal August 1991
Formation of hydroxyapatite coating on pure titanium substrates by ion beam dynamic mixing journal January 1994

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Related Subjects

/424/523/
alloy
alloy bone
alloy substrate
alloy substrates
annealed
beam
bonding
bone
bone prostheses
coatings
crystallization
decreasing
densified
density
described
encouraging
fabrication
films
form
form layers
heat
heat treated
hydroxylapatite
implantation
improved
ingrowth
larger
layer
layers
located
method
method utilizing
mixed
non-line-of-sight
outermost
outermost layer
processing
prostheses
provide
provide improve
provide improved
rapid
rapid thermal
rapidly
sol-gel
subsequent
substrate
substrates
suitable
thermal
thermal processing
thermally
titanium
titanium alloy
treated
utilizing