Suspension plasma sprayed bioactive glass coatings: Effects of processing on microstructure, mechanical properties and in-vitro behaviour

被引：44

作者：

Cattini, A. ^{[1
,2
]}

Latka, L. ^{[2
,3
]}

Bellucci, D. ^{[1
]}

Bolelli, G. ^{[1
]}

Sola, A. ^{[1
]}

Lusvarghi, L. ^{[1
]}

Pawlowski, L. ^{[2
]}

Cannillo, V. ^{[1
]}

机构：

[1] Univ Modena & Reggio Emilia, Dept Mat & Environm Engn, I-41125 Modena, Italy

[2] Univ Limoges, UMR CNRS 7315, SPCTS, F-87068 Limoges, France

[3] Wroclaw Univ Technol, Fac Mech, PL-50372 Wroclaw, Poland

来源：

SURFACE & COATINGS TECHNOLOGY | 2013年 / 220卷

关键词：

Bioactive glass; Suspension plasma spray; Simulated body fluid; Scratch test; Depth-sensing indentation; SIMULATED BODY-FLUID; HYDROXYAPATITE COATINGS; HEAT-TREATMENT;

D O I：

10.1016/j.surfcoat.2012.10.076

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Bioactive glass coatings deposited via suspension plasma spraying were studied to improve the adhesion between orthopaedic implants and bone. Fine powders of a bioactive glass, named BG_Ca, having composition (in wt%): 4.7 Na2O, 42.3 CaO, 6.1 P2O5, and 46.9 SiO2, were produced and dispersed in ethanol to form a suspension used as a feedstock. Various sets of spray parameters were applied in order to define the influence of the deposition process on the final coating properties. Consequently, the coatings were characterized in as-sprayed state and after soaking in a simulated body fluid (SBF) for different periods ranging from 1 to 14 days. The microstructural investigations were carried out using environmental scanning electron microscope (ESEM) and X-ray diffraction (XRD). The coatings' adhesion to the substrate was evaluated by means of scratch tests. Finally, hardness and elastic modulus were determined by means of depth-sensing indentation methods. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：52 / 59

页数：8

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