Corrosion behaviour of plasma sprayed graphene nanoplatelets reinforced hydroxyapatite composite coatings in simulated body fluid

2020 ◽  
Vol 46 (9) ◽  
pp. 13539-13548 ◽  
Author(s):  
Swarnima Singh ◽  
Krishna Kant Pandey ◽  
Aminul Islam ◽  
Anup Kumar Keshri
Keyword(s):  
Simulated Body Fluid ◽  
Body Fluid ◽  
Corrosion Behaviour ◽  
Composite Coatings ◽  
Graphene Nanoplatelets ◽  
Hydroxyapatite Composite ◽  
Plasma Sprayed

Phase evolution of hydroxapatite coatings suspension plasma sprayed using variable parameters in simulated body fluid

2010 ◽  
Vol 204 (8) ◽  
pp. 1236-1246 ◽  
Author(s):  
Romain d'Haese ◽  
Lech Pawlowski ◽  
Muriel Bigan ◽  
Roman Jaworski ◽  
Marc Martel
Keyword(s):  
Simulated Body Fluid ◽  
Body Fluid ◽  
Phase Evolution ◽  
Variable Parameters ◽  
Plasma Sprayed

scholarly journals Preparation and Degradation Characteristics of MAO/APS Composite Bio-Coating in Simulated Body Fluid

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 667
Author(s):  
Zexin Wang ◽  
Fei Ye ◽  
Liangyu Chen ◽  
Weigang Lv ◽  
Zhengyi Zhang ◽  
...  
Keyword(s):  
Simulated Body Fluid ◽  
Composite Coating ◽  
Body Fluid ◽  
Composite Coatings ◽  
Degradation Process ◽  
Ceramic Coatings ◽  
Immersion Test ◽  
Substrate Material ◽  
Atmospheric Plasma

In this work, ZK60 magnesium alloy was employed as a substrate material to produce ceramic coatings, containing Ca and P, by micro-arc oxidation (MAO). Atmospheric plasma spraying (APS) was used to prepare the hydroxyapatite layer (HA) on the MAO coating to obtain a composite coating for better biological activity. The coatings were examined by various means including an X-ray diffractometer, a scanning electron microscope and an energy spectrometer. Meanwhile, an electrochemical examination, immersion test and tensile test were used to evaluate the in vitro performance of the composite coatings. The results showed that the composite coating has a better corrosion resistance. In addition, this work proposed a degradation model of the composite coating in the simulated body fluid immersion test. This model explains the degradation process of the MAO/APS coating in SBF.

Insight into the corrosion behaviour and degradation mechanism of pure zinc in simulated body fluid

2021 ◽  
Vol 178 ◽  
pp. 109071
Author(s):  
Shiyu Huang ◽  
Wei Wu ◽  
Yanjing Su ◽  
Lijie Qiao ◽  
Yu Yan
Keyword(s):  
Simulated Body Fluid ◽  
Body Fluid ◽  
Corrosion Behaviour ◽  
Degradation Mechanism ◽  
Pure Zinc ◽  
Insight Into

scholarly journals Bioactivity Behavior Evaluation of PCL-Chitosan-Nanobaghdadite Coating on AZ91 Magnesium Alloy in Simulated Body Fluid

Coatings ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 231
Author(s):  
Farzad Soleymani ◽  
Rahmatollah Emadi ◽  
Sorour Sadeghzade ◽  
Fariborz Tavangarian
Keyword(s):  
Simulated Body Fluid ◽  
Corrosion Rate ◽  
Composite Coating ◽  
Body Fluid ◽  
Composite Coatings ◽  
Phosphate Buffer Solution ◽  
Az91 Alloy ◽  
Apatite Formation ◽  
Az91 Magnesium Alloy ◽  
Sbf Solution

Polymer–ceramic composite coatings on magnesium-based alloys have attracted lots of attention in recent years, to control the speed of degradability and to enhance bioactivity and biocompatibility. In this study, to decrease the corrosion rate in a simulated body fluid (SBF) solution for long periods, to control degradability, and to enhance bioactivity, polycaprolactone–chitosan composite coatings with different percentages of baghdadite (0 wt.%, 3 wt.%, and 5 wt.%) were applied to an anodized AZ91 alloy. According to the results of the immersion test of the composite coating containing 3 wt.% baghdadite in a phosphate buffer solution (PBS), the corrosion rate decreased from 0.45 (for the AZ91 sample) to 0.11 mg/cm2·h after seven days of immersion. To evaluate the apatite formation capability of specimens, samples were immersed in an SBF solution. The results showed that the samples were bioactive as apatite layers formed on the surface of specimens. The composite coating containing 3 wt.% baghdadite showed the highest apatite-formation capability, with a controlled release of ions, and the lowest corrosion rate in the SBF.

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