scholarly journals The corrosion resistance, biocompatibility and biomineralization of the dicalcium phosphate dihydrate coating on the surface of the additively manufactured NiTi alloy

2022 ◽  
Author(s):  
Yunting Guo ◽  
Zezhou Xu ◽  
Mengqi Liu ◽  
Shuo Zu ◽  
Yanan Yang ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Niti Alloy ◽  
Dicalcium Phosphate ◽  
Dicalcium Phosphate Dihydrate ◽  
Phosphate Dihydrate

Preparation and Characterisation of CaP-Containing Coating on Magnesium Alloy by Micro-Arc Oxidation and Hydrothermal Treatment

2012 ◽  
Vol 496 ◽  
pp. 383-386
Author(s):  
Li Min Chang ◽  
Dan Dan Xu ◽  
Wei Liu
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Oxide Film ◽  
Hydrothermal Treatment ◽  
Electrochemical Methods ◽  
Dicalcium Phosphate ◽  
Dicalcium Phosphate Dihydrate ◽  
Phosphate Dihydrate ◽  
Micro Arc Oxidation ◽  
Hank’S Solution

Micro-arc oxidation (MAO) together with hydrothermal treatment had been performed to improve the corrosion resistance of magnesium alloy. The oxide films were hydrothermally heated at 150°C for 2h. The morphology of samples were characterized by SEM/EDS. The phase compositions were examined by TF-XRD. The corrosion resistance of the coatings was evaluated by electrochemical methods in Hank’s solution. The MAO films displayed porous and rough structure and were mainly composed of MgO and MgAl2O4. After hydrothermal treatment, a dicalcium phosphate dihydrate (DCPD) coating formed on the oxide film. The corrosion resistance of the MAO film and DCPD coating was increased by about 12 and 40 times higher than that of bare magnesium alloy.

scholarly journals Evolution of the dicalcium phosphate-dihydrate (DCPD) coating created by large amplitude sinusoidal voltammetry (LASV) on corrosion resistance of the ZW3 magnesium alloy in chloride containing environment

2018 ◽  
Vol 62 (1) ◽  
pp. 14-18
Author(s):  
D. Kajánek ◽  
B. Hadzima ◽  
F. Pastorek ◽  
M. Neslušan Jacková
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Large Amplitude ◽  
Electrochemical Impedance ◽  
Dicalcium Phosphate ◽  
Electrochemical Characteristics ◽  
Dicalcium Phosphate Dihydrate ◽  
Electro Deposition ◽  
Cathodic Electrodeposition ◽  
Phosphate Dihydrate

Abstract The contribution is focused on the preparation of coating based on the dicalcium phosphate-dihydrate (DCPD) on the surface of ZW3 magnesium alloy. For the preparation of the coating a cathodic electrodeposition technique called Large Amplitude Sinusoidal Voltammetry (LASV) was used. The DCPD layer was prepared at the temperature of 22 ± 2 °C in electrolyte composed of 0.1M Ca(NO3).4H2O, 0.06 M NH4H2PO4 and H2O2. Electrochemical characteristics were evaluated by electrochemical impedance spectroscopy (EIS) in 0.1M NaCl solution. The obtained data in form of Nyquist plots were analysed by the equivalent circuit method. It is clear from the measured values of polarization resistance Rp that dicalcium phosphate-dihydrate (DCPD) layer prepared by LASV electro-deposition technique improved corrosion resistance of ZW3 alloy in the chosen environment.

Behavior of Osteoclast Cells Response on Dicalcium Phosphate Dihydrate Layer-Coated β-Tricalcium Phosphate Granular

2020 ◽  
Vol 1010 ◽  
pp. 549-554
Author(s):  
Khairul Anuar Shariff ◽  
Mohamad Hafizi Abu Bakar ◽  
Arief Cahyanto
Keyword(s):  
Bone Formation ◽  
Dicalcium Phosphate ◽  
Phosphate Solution ◽  
Dicalcium Phosphate Dihydrate ◽  
New Bone Formation ◽  
Osteoblast Cells ◽  
Calvarial Bone ◽  
Phosphate Dihydrate ◽  
Trap Staining ◽  
Block Section

The aim of this study is to investigate the behavior of osteoclast cells response on dicalcium phosphate dihydrate (DCPD) layer-coated β-TCP granules. β-TCP granules with 300-600 μm were exposed to acidic calcium phosphate solution for 30 mins in order to get 10 mol% DCPD layer-coated β-TCP granular. DCPD free-coated β-TCP granular had used as control specimen. Both specimens were implant in 9 mm of rat calvarial bone defect for 4 weeks. After 4 weeks, the block section of rat calvarial containing specimen were removed for Tatrate-Resistance Acid Phosphatase (TRAP) analysis. Results of TRAP staining reveal that the number of osteoclast cells attached on 10 mol% layer-coated β-TCP granular is higher than DCPD free-coated β-TCP granular. Since remodeling of new bone formation involved simultaneous osteoclast and osteoblast cells response, therefore, the results obtained in this study indicated that the presence of DCPD layer-coated on β-TCP granular helps to improve osteoclast cells response that contribute in stimulating new bone formation.

Structure of hydroxyapatite powders prepared through dicalcium phosphate dihydrate hydrolysis

2016 ◽  
Vol 52 (2) ◽  
pp. 170-175 ◽  
Author(s):  
A. E. Karpikhin ◽  
A. Yu. Fedotov ◽  
V. S. Komlev ◽  
S. M. Barinov ◽  
V. P. Sirotinkin ◽  
...  
Keyword(s):  
Dicalcium Phosphate ◽  
Dicalcium Phosphate Dihydrate ◽  
Phosphate Dihydrate
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