微束等离子喷涂工艺参数对HA粒子扁平化和涂层结晶度影响
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摘要
采用微束等离子喷涂方法在Ti-6Al-4V基体上制备了羟基磷灰石(Hydroxyapatite,HA)扁平粒子和涂层,研究喷涂距离(70mm、80mm、90mm)对HA粒子扁平化和涂层相结构以及结晶度影响。结果表明:微束等离子喷涂制备的HA扁平粒子形貌主要为圆盘状。在研究范围内,随着喷涂距离的增加,粒子熔化程度增加,涂层更加致密,涂层的结晶度随着喷涂距离的增加依次降低,分别为90.3%、89.5%和85.6%。
Hydroxyapatite(HA) splats and coatings was deposited on Ti-6Al-4V by Microplasma spraying(MPS) processes, and the influence of spraying distance(70mm,80 mm,90mm) on HA splats, the coating microstructure and crystallinity was investigated. The results showed that: the morphology of HA splats was mainly in the shape of the disc. Within the spraying distance range from 70 mm to 90 mm, the degree of particle melting increased, the coating became denser and the crystallinity of the coating decreased, respectively 90.3%,89.5% and 85.6%.
Hydroxyapatite(HA) splats and coatings was deposited on Ti-6Al-4V by Microplasma spraying(MPS) processes, and the influence of spraying distance(70mm,80 mm,90mm) on HA splats, the coating microstructure and crystallinity was investigated. The results showed that: the morphology of HA splats was mainly in the shape of the disc. Within the spraying distance range from 70 mm to 90 mm, the degree of particle melting increased, the coating became denser and the crystallinity of the coating decreased, respectively 90.3%,89.5% and 85.6%.
引文
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[12]CIZEK J,KHOR K A.Role of In-flight Tempera ture and Velocity of Powder Particles on Plasma Sprayed Hydroxyapatite Coating Characteristics[J].Surface&Coatings Technology,2012:2181-2191.
[2]SUCHANEK W,YOSHIMURA M.Processing and Properties of Hydroxyapatite-based Biomaterials for Use as Hard Tissue Replacement Implants[J].Journal of Materials Research,1998,13(1):94-117.
[3]HENCH L L.Bioceramics[J].Journal of the American Ceramic Society,1998,81(7):1705-1728.
[4]SUN L M,BERNDT C C,GREY C P.Phase,Structural and Microstructural Investigations of Plasma Sprayed Hydroxyapatite Coatings[J].Materials Science and Engineering A,2003,360:70-84.
[5]FAZAN F,MARQUIS P M.Dissolution Behavior of Plasma-sprayed Hydroxyapatite Coatings[J].Material in Med.,2000,11(12):787-792.
[6]ZHAO L,BOBZIN K,ERNST F,et al.Study on the Influence of Plasma Spray Processes and Spray Parameters on the Structure and Crystallinity of Hydroxylapatite Coatings[J].Mat.-wiss.u.Werkstofftech.,2006,37(6):516-520.
[7]DEY A,MUKHOPADHYAY A K,GANGADHARAN S,et al.Characterization of Microplasma Sprayed Hydroxyapatite Coating[J].Journal of Thermal Spray Technology,2009,18(4):78-592.
[8]GROSS K A,YOUNGC J,BECK M A,et al.Characterization and Dissolution of Functionalized Amorphous Calcium Phosphate Biolayers Using Singlesplat Technology[J].Acta Biomaterial,2011,7(5):270-2275.
[9]GROSS K A,BERNDT C C,Herman H.Amorphous Phase Formation in Plasma-sprayed Hydroxyapatite Coatings[J].Journal of Biomedical Materials Research,1998,39:407-414.
[10]赵秋颖,贺定勇,刘艳,等.微束等离子喷涂气体对HA涂层结晶度的影响[J].焊接学报,2012,33(12):23-27.
[11]YANG Y C,CHANG E.The Bonding of Plasmasprayed Hydroxyapatite Coating to Titanium:Effect of Processing,Porosity and Residual Stress[J].Thin Solid Films,2003,444(1):260-275.
[12]CIZEK J,KHOR K A.Role of In-flight Tempera ture and Velocity of Powder Particles on Plasma Sprayed Hydroxyapatite Coating Characteristics[J].Surface&Coatings Technology,2012:2181-2191.