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

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Related Subjects

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