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Influence of Fluoride Content of Artificial Saliva on Metal Release from 17-4 PH Stainless Steel Foam for Dental Implant Applications

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Journal of Materials Science & Technology 2013年第6期29卷 582-588页

作者： ilven mutlu Enver Oktay Department of Metallurgical and Materials Engineering Istanbul UniversityIstanbulTurkey

Highly porous 17-4 PH stainless steel foam for implant applications was produced by space holder technique. Metal release and weight loss from 17-4 PH stainless steel foams were investigated in fluoride added artificial saliva environment by static immersion test. An inductively coupled plasma-mass spectrometer was employed to measure the concentrations of various metal ions. Effects of fluoride content of artificial saliva on metal release and weight loss from the steel foams were investigated. Effects of immersion time, pH value and process parameters on the weight loss and metal release were determined. Pore morphology, pore size and mechanical properties of the 17-4 PH stainless steel foams were also characterized.

关键词： Metal release Dental implant Metal foam Fluoride Artificial saliva

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Synthesis and characterization of Ti-Co alloy foam for biomedical applications

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Transactions of Nonferrous Metals Society of China 2016年第1期26卷 126-137页

作者： ilven mutlu Metallurgical and Materials Engineering Department Istanbul University

Highly porous Ti-Co alloy specimens for biomedical applications were synthesized by powder metallurgy based space holder technique. Ti alloys have high melting temperature and affinity for oxygen, which makes Ti alloys difficult to be processed. The Co addition reduces the melting temperature and Ti-Co alloy was sintered at lower temperatures. The electrochemical corrosion behaviour of the specimens was examined in the artificial saliva solution. The effects of Co content of the alloy, the p H value and fluoride concentration of the artificial saliva solution on the electrochemical corrosion properties of the specimens were investigated. The microstructure and mechanical properties of the specimens were examined. The electrochemical impedance spectroscopy results indicate that the corrosion resistance of the specimens decreases at high fluoride concentrations and low p H value. The defect density increases with increasing the fluoride concentration and decreasing the p H value of artificial saliva according to Mott-Schottky analysis.

关键词： Ti-Co alloy metal foam powder metallurgy electrochemical corrosion biomedical implant

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维普期刊数据库

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Production and fluoride treatment of Mg-Ca-Zn-Co alloy foam for tissue engineering applications

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Transactions of Nonferrous Metals Society of China 2018年第1期28卷 114-124页

作者： ilven mutlu Metallurgical and Materials Engineering Department Istanbul University

Highly porous Mg-Ca-Zn-Co alloy scaffolds for tissue engineering applications were produced by powder metallurgy based space holder-water leaching ***-Ca-Zn-Co alloy foam can be used as a scaffold material in tissue *** was used as a space holder *** conversion coating was synthesized on the alloy by immersion treatment in hydrofluoric acid(HF).Increasing Zn content of the alloy increased the elastic *** addition prevented the oxidation of the specimens during *** corrosion behaviour of the specimens was examined in simulated body *** rate decreased with Zn addition from1.0%up to3.0%(mass fraction)and then *** loss of the specimens initially decreased with Zn addition up to about3%and then *** conversion coating increased the corrosion resistance of the specimens.

关键词： Mg-Ca-Zn-Co alloy scaffold fluoride treatment metal foam corrosion

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维普期刊数据库

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