Gel oxidation of titanium at low concentration sodium hydroxide (NaOH)

Tan, K. J. and Abdullah, Hasan Zuhudi and Idris, Maizlinda Izwana and Sorrell, C.C. (2014) Gel oxidation of titanium at low concentration sodium hydroxide (NaOH). In: International Conference on X-Ray & Related Technique in Research and Industry (ICXRI2014), 11-13 August 2014 , Johor Bahru, Johor.

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Abstract

Gel oxidation is an effective thermochemical method for the preparation of bioactive titanium surfaces. This study aims to investigate the effect of low NaOH concentration on gel oxidation of titanium subjected to various oxidation temperatures. Titanium foils were soaked in NaOH aqueous solutions with the concentration of 0.5 M or 1.0 M, followed by oxidation in the range of 400°C to 800°C. The crystallinity of the filfn was determined using glancing angle X-ray diffraction (GAXRD). At low NaOH concentration, the amount of sodium titanate hydrogel, if present, was too low to detect. Subsequent oxidation at 400°C was insufficient to form sufficient anatase and/or rutile to be detectable by GAXRD. Oxidation at 600°C and 800°C resulted in the detection of rutile.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:gel oxidation; sodium hydroxide; titanium; surface modification
Subjects:T Technology > TP Chemical technology > TP155-156 Chemical engineering
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
ID Code:5891
Deposited By:Normajihan Abd. Rahman
Deposited On:10 Nov 2014 15:34
Last Modified:10 Nov 2014 15:34

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