EVALUATION OF THE ELECTROCHEMICAL BEHAVIOR AND NI IONS RELEASE OF MODIFIED SURFACE OF NITI IN SIMULATED BODY FLUID

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KhlilAllafi Jafar; Maleki galeh Hosein; Khalili Vida; Nakisa Shima; JAVIDI MEHDI

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Seminar Paper

Paper Information

Seminar: IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING
Year:2012 | Issue:19

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Title

EVALUATION OF THE ELECTROCHEMICAL BEHAVIOR AND NI IONS RELEASE OF MODIFIED SURFACE OF NITI IN SIMULATED BODY FLUID

Author(s)

KhlilAllafi Jafar | Maleki galeh Hosein | Khalili Vida | Nakisa Shima | JAVIDI MEHDI

Keywords

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Abstract

NATURAL HYDROXYAPATITE HAS BEEN ELECTROPHORETICALLY DEPOSITED ON NITI SHAPE MEMORY ALLOY AT A CONSTANT VOLTAGE, NAMELY AT 40, 60 AND 80 V IN 120 S. AFTER SINTERING AT , THE ELECTROCHEMICAL BEHAVIOR OF SAMPLES IN SIMULATED BODY FLUID (SBF) WAS STUDIED BY ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY (EIS) AND POLARIZATION TEST. ALSO NI IONS RELEASE OF UNCOATED SAMPLES AND HA-COATED SAMPLES WAS EVALUATED BY ATOMIC ABSORPTION SPECTROMETER (AAS) IN SBF. SURFACE MORPHOLOGY OF THE HA COATINGS WAS STUDIED USING SCANNING ELECTRON MICROSCOPE (SEM). COMPARED TO COATED SAMPLES AND NO COATED ONE, EVALUATION OF ELECTROCHEMICAL BEHAVIOR AND RELEASE OF NICKEL IONS IN THE BODY SIMULATIONS SUGGEST THAT COATED ONES ARE CHEMICALLY STABLE AND PROVIDED CORROSION RESISTANCE FOR NITI AND REDUCED NI IONS RELEASE. THE COATING DEPOSITED AT 60 V IS CONSIDERED AS OPTIMIZED COATING BECAUSE OF HAVING A UNIFORM AND DENSE SURFACE IN COMPARISON WITH OTHER COATINGS THAT RESULTS IN MOST CORROSION RESISTANCE. COMPARISON OF NI IONS RELEASE OF NITI COATED AT 60 V AND NITI REVEALS THAT NI ION CONCENTRATION DECREASES FROM 12 ΜG.CM-2 (FOR NITI) TO 0.02 ΜG.CM- 2 (FOR NITI COATED AT 60 V) IN SBF.

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APA: Copy

KhlilAllafi, Jafar, Maleki galeh, Hosein, Khalili, Vida, Nakisa, Shima, & JAVIDI, MEHDI. (2012). EVALUATION OF THE ELECTROCHEMICAL BEHAVIOR AND NI IONS RELEASE OF MODIFIED SURFACE OF NITI IN SIMULATED BODY FLUID. IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING. SID. https://sid.ir/paper/926056/en

Vancouver: Copy

KhlilAllafi Jafar, Maleki galeh Hosein, Khalili Vida, Nakisa Shima, JAVIDI MEHDI. EVALUATION OF THE ELECTROCHEMICAL BEHAVIOR AND NI IONS RELEASE OF MODIFIED SURFACE OF NITI IN SIMULATED BODY FLUID. 2012. Available from: https://sid.ir/paper/926056/en

IEEE: Copy

Jafar KhlilAllafi, Hosein Maleki galeh, Vida Khalili, Shima Nakisa, and MEHDI JAVIDI, “EVALUATION OF THE ELECTROCHEMICAL BEHAVIOR AND NI IONS RELEASE OF MODIFIED SURFACE OF NITI IN SIMULATED BODY FLUID,” presented at the IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING. 2012, [Online]. Available: https://sid.ir/paper/926056/en

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