Color formation, wettability, and surface characteristics on titanium surface treated by anodization

การเกิดสี การไหลแผ่ และลักษณะพื้นผิวบนไทเทเนียมที่ผ่านกระบวนการอโนไดซ์

Name: Chayanis Vattanasup

LCSH: Teeth -- Roots

LCSH: Endodontics

LCSH: Titanium

Abstract: Objectives: To assess the contact angle on Ti surface and to investigate the surface characteristics of anodized Ti surface when different voltages are applied in anodization process. Materials and methods: A total of 114 titanium alloy disks (Ti6Al4V) were divided evenly into 19 groups, with 6 disks in each group, 1 group as a control group. The Ti6Al4V disks were electrochemically colored in a temperature-controlled container with 1 M baking soda as the electrolyte, the Ti6Al4V disks on the anode, and the aluminum foil on the cathode. The feed voltages were arranged from 5 to 90 V, with an incremental voltage of 5 V at each step. The anodizing time was 60 seconds. Physical properties including surface roughness, wettability, morphology, and chemical composition were evaluated by surface roughness profilometer, a contact angle analysis system and scanning electron microscopy. Results: Anodized titanium alloys at different voltages can produce a variety of colors on their surfaces. There was no statistically significant difference in surface roughness (Ra) and the contact angles between the control and anodized groups. The SEM image revealed a relatively smooth titanium surface with a fine-grained microstructure. A few small pores were observed when the higher voltage was applied. Conclusions: Anodization is an effective method for altering the color of titanium alloys while maintaining their desirable surface properties. A wide range of colors can be achieved by varying the anodization voltage. The surface roughness and hydrophilicity remained unchanged. Nevertheless, the nanostructure was enhanced.

Chiang Mai University. Library

Address: CHIANG MAI

Email: cmulibref@cmu.ac.th

Name: Pisaisit Chaijareenont

Role: Advisor

Name: Pimduen Rungsiyakull

Role: Advisor

Created: 2025

Modified: 2025-06-17

Issued: 2025-06-17

วิทยานิพนธ์/Thesis

application/pdf

eng

DegreeName: Master of Science

Level: Master's Degree

Descipline: Dentistry

Grantor: Chiang Mai

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