RT Journal Article
T1 Calcium phosphate grafts produced by rapid prototyping based on laser cladding
A1 Comesaña Piñeiro, Rafael
A1 Lusquiños Rodríguez, Fernando
A1 Del Val Garcia, Jesús
A1 Malot, T
A1 López Álvarez, Miriam
A1 Riveiro Rodríguez, Antonio
A1 Quintero Martínez, Félix
A1 Boutinguiza Larosi, Mohamed
A1 Aubry, P
A1 De Carlos Villamarin, Alejandro Leonides
A1 Pou Saracho, Juan María
K1 3312 Tecnología de Materiales
K1 3303 Ingeniería y Tecnología Químicas
AB Rapid prototyping based on laser cladding by powder injection has been used to produce calcium phosphate three-dimensional grafts without using molds. Precursor material comprising of hydroxyapatite (HA) powder was irradiated by means of an infrared Nd:YAG laser. The processing parameters and the thermal history of the processed material have been assessed and the process has been optimized to obtain solid parts. Processing by laser cladding lead to complete dehydroxylation of the precursor HA, the obtained microstructure is composed by an alpha-tricalcium phosphate ( -TCP) matrix with nucleated tetracalcium phosphate (TTCP) grains, in coexistence with oxyapatite and amorphous calcium phosphate. The produced bioceramic grafts were observed to be bioactive, leading to calcium-deficient hydroxyapatite precipitation and promoting pre-osteoblastic cell attachment and proliferation during “in vitro” cell culture test.
PB Journal of the European Ceramic Society
SN 09552219
YR 2011
FD 2011-01
LK http://hdl.handle.net/11093/6937
UL http://hdl.handle.net/11093/6937
LA eng
NO Journal of the European Ceramic Society, 31(1-2): 29-41 (2011)
NO Ministerio de Ciencia e Innovación | Ref. MAT2006-10481
DS Investigo
RD 13-dic-2024