Production of potassium titanate whisker reinforced dental composites

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2014

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Metallurgical and Materials Engineering
(2004)
The main fields of operation for Metallurgical and Materials Engineering are production of engineering materials, defining and improving their features, as well as developing new materials to meet the expectations at every aspect of life and the users from these aspects. Founded in 2004 and graduated its 10th-semester alumni in 2018, our Department also obtained MÜDEK accreditation in the latter year. Offering the opportunity to hold an internationally valid diploma through the accreditation in question, our Department has highly qualified and experienced Academic Staff. Many of the courses offered at our Department are supported with various practice sessions, and internship studies in summer. This way, we help our students become better-equipped engineers for their future professional lives. With the Cooperative Education curriculum that entered into effect in 2019, students may volunteer to work at contracted companies for a period of six months with no extensions to their period of study.
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English Translation and Interpretation
(2001)
Since 2001, our Department has offered education at an extent that matches the similar Departments of European Universities, with a program that involves theoretical and practical courses within the frameworks of translation and interpretation. The goals that we aim our students to reach involve the utilization of knowledge, behaviors and equipment, interpersonal operation in interpretation, the management of the process of production, expertise in language skills with respect to fields and general culture, and access to information. Our students have no difficulty in being hired upon graduation, having gained an awareness regarding the expectations and the conditions of the professional life through our strong cooperation with the national and the international sector. With French and Russian courses offered for 4 years, our students steal the spotlight in the market, having obtained a C-Language Certificate. Our graduates are employed as freelance interpreters, institution interpreters, regulators as multi-layered language experts, terminology experts, subtitle experts and web localization experts.

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Potassium titanate (K2O.nTiO2) whiskers (KTWs) were produced by sol-gel method and embedded into UDMA-TEGDMA resins to produce KTW reinforced composites that could be used for both anterior and posterior fillings. The effect Ti/K molar ratio on the chemical, structural and functional properties of the KTWs was investigated using XRD, HR-TEM, and BET analysis. Morphology and the surface properties of the KTWs rely on the Ti/K ratio. However, HR-TEM studies clarified that the KTWs grow along [110] axis regardless of Ti/K ratio. BET analysis revealed the presence of slit shaped meso-pores in the KTWs. The KTW reinforced composites were produced by mixing UDMA-TEGDMA resins at molar compositions of 30-70, 70-30, and 50-50 wt%, and by embedding 5 wt% KTW homogeneously into the mixtures. Photocatalytic activity of the KTWs and the KTW reinforced composites were evaluated through Methylene Blue degradation test. Photocatalytic activity of the composites decreased as Ti/K ratio is increased although it showed a tendency to increase in the KTWs with increasing Ti/K ratio. Meanwhile, the photocatalytic activity of the composites was superior to unreinforced resin mixtures. Mechanical properties namely, nanoindentation hardness and wear-rate of the bulk polymers enhanced significantly by KTW reinforcement.

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Ceramic Engineering and Science Proceedings -- Advances in Bioceramics and Porous Ceramics VI - 37th International Conference on Advanced Ceramics and Composites, ICACC 2013 -- 27 January 2013 through 1 February 2013 -- Daytona Beach, FL -- 101655

Volume

34

Issue

6

Start Page

35

End Page

43

URI

https://hdl.handle.net/20.500.14411/9396

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Scopus