TY - JOUR
T1 - Deposition of bio-integration ceramic hydroxyapatite by pulsed-pressure MOCVD using a single liquid precursor solution
AU - Krumdieck, Susan P.
AU - Reyngoud, Benjamin P.
AU - Barnett, Anne D.
AU - Clearwater, Deborah J.
AU - Hartshorn, Richard M.
AU - Bishop, Catherine M.
AU - Redwood, Benjamin P.
AU - Palmer, Ellen L.
PY - 2010/3
Y1 - 2010/3
N2 - Pulsed-pressure (PP) metal-organic(MO)CVD is used to deposit layers of calcium phosphate onto flat bio-medical grade titanium (Ti6Al4V) substrates. Inexpensive calcium lactate and trimethyl phosphate (TMP), combined in a methanol solution, forms the precursor. A range of precursor mixtures is studied by thermogravimetric analysis (TGA) to assess reaction pathways. The surface topography, morphology, composition, and crystallinity are studied over a range of deposition temperatures and precursor concentrations. The resulting films are analyzed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Raman spectroscopy (RS), and micro-indentation. The films are continuous and the size of surface structures increases at higher temperatures and precursor concentration. The films consist of amorphous calcium phosphate in elemental Ca/P ratios similar to the standard bio-ceramic, hydroxyapatite (1.66).
AB - Pulsed-pressure (PP) metal-organic(MO)CVD is used to deposit layers of calcium phosphate onto flat bio-medical grade titanium (Ti6Al4V) substrates. Inexpensive calcium lactate and trimethyl phosphate (TMP), combined in a methanol solution, forms the precursor. A range of precursor mixtures is studied by thermogravimetric analysis (TGA) to assess reaction pathways. The surface topography, morphology, composition, and crystallinity are studied over a range of deposition temperatures and precursor concentrations. The resulting films are analyzed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Raman spectroscopy (RS), and micro-indentation. The films are continuous and the size of surface structures increases at higher temperatures and precursor concentration. The films consist of amorphous calcium phosphate in elemental Ca/P ratios similar to the standard bio-ceramic, hydroxyapatite (1.66).
KW - Biomaterials
KW - Calcium lactate
KW - Hydroxyapatite
KW - PP-MOCVD
KW - Trimethyl phosphate
UR - http://www.scopus.com/inward/record.url?scp=77950192155&partnerID=8YFLogxK
U2 - 10.1002/cvde.200906839
DO - 10.1002/cvde.200906839
M3 - Article
AN - SCOPUS:77950192155
VL - 16
SP - 55
EP - 63
JO - Chemical Vapor Deposition
JF - Chemical Vapor Deposition
SN - 0948-1907
IS - 1-3
ER -