Formation of tio2 thin film on antibacterial metal injection molding stainless steel orthodontic bracket 17-4 ph using physical vapor deposition method

Sugeng Supriadi, Annisa Ovilia, Nurul Ilmaniar, Bambang Suharno

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study aims to equip orthodontic bracket SS 17-4 PH fabricated using metal injection molding with antibacterial properties. This can be achieved by applying TiO2 coating on the surface of brackets using magnetron sputtering PVD method. This method is chosen due to its compatibility to be used on bulk metal and its ability to control thin-film stoichiometry. Samples were prepared using the series of following steps which comprised of metal injection molding, binder elimination with solvent and thermal debinding, sintering in vacuum and argon atmosphere, electropolishing, and magnetron sputtering PVD coatings as the final stage. Negative bias, sputtering power, and partial pressure on vacuum chamber were set as the constant parameters. The atmosphere inside the PVD chamber was controlled using oxygen and argon gases. XRD and SEM observations were carried out to obtain the information on the phase and morphology of the films. Rutile and anatase crystalline structures with 2,27 nm and 9,78 nm crystal size were measured in as-deposited PVD TiO2 respectively. The deposition films were achieved in the range of 3 µm-8 µm.

Original languageEnglish
Title of host publicationEngineering and Innovative Materials VIII
EditorsMuhammad Yahaya, Herng-Chia Hsieh
PublisherTrans Tech Publications Ltd
Pages169-174
Number of pages6
ISBN (Print)9783035716054
DOIs
Publication statusPublished - 1 Jan 2020
Event8th International Conference on Engineering and Innovative Materials, ICEIM 2019 - Tokyo, Japan
Duration: 6 Sep 20198 Sep 2019

Publication series

NameKey Engineering Materials
Volume846 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference8th International Conference on Engineering and Innovative Materials, ICEIM 2019
Country/TerritoryJapan
CityTokyo
Period6/09/198/09/19

Keywords

  • Magnetron sputtering PVD TiO
  • Metal injection molding
  • Orthodontic bracket
  • Sintering atmosphere
  • Stainless steel 17-4 precipitation hardening

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