Zafer Evis

E-mail

evis@metu.edu.tr

Department

Department of Engineering Sciences

ORCID

0000-0002-7518-8162

Scopus Author ID

14070067300

Web of Science Researcher ID

AAZ-7561-2020

Effect of mandrel position on bending quality in the rotary draw bending process Ozcan, Bahadır; Evis, Zafer; Ozturk, Fahrettin (2025-01-01) The mandrel plays a critical role in supporting tubes within the bending region during tube bending operations. This research explores the impact of varying mandrel positions on bending quality. Therefore, both experimenta...
Mechanical and biological evaluation of β-dicalcium silicate/dicalcium phosphate-based cements: promising materials for biomedical applications Alshemary, Ammar Z.; Marandi, Almataz Bellah; Ali, Daver; Köse, Tuğba; Dalgic, Ali Deniz; Motameni, Ali; Evis, Zafer (2025-01-01) This study explores the synthesis and evaluation of β-Dicalcium silicate and Dicalcium phosphate-based cements for biomedical use. β-Tricalcium phosphate was synthesized using microwave-assisted wet precipitation, while β-...
A comparative review of machinability in AA2XXX and AA7XXX heat-treatable aluminum alloys: Focus on AA7050-T7451 and AA2050-T84 Ates, Elvan; Evis, Zafer; Ozturk, Fahrettin (2025-01-01) Heat-treated AA7050-T7451 with high fatigue strength and corrosion cracking resistance, which is frequently used in the aerospace industry, and third generation AA2050-T84 with low density, high fracture toughness, and hig...
Experimental and numerical investigation of mechanical properties of PLA-based auxetic structures Taşdemir, Mehmet; TOKTAŞ, İHSAN; Motameni, Ali; Evis, Zafer (2025-01-01) In this study, two innovative unit cell designs were developed by combining different auxetic structures from the literature, and they were fabricated using 3D printers, one of the most popular additive manufacturing metho...
Methods to improve antibacterial properties of PEEK: A review Uysal, Idil; Tezcaner, Ayşen; Evis, Zafer (2024-03-01) As a thermoplastic and bioinert polymer, polyether ether ketone (PEEK) serves as spine implants, femoral stems, cranial implants, and joint arthroplasty implants due to its mechanical properties resembling the cortical bon...
Influence of strut angle and radius on the energy absorption and failure mechanisms in 3-strut, 4-strut and 6-strut lattice structures Ture, Mustafa Okan; Evis, Zafer (2024-01-01) 3D-printed truss structures have remarkable potential in the aerospace and weight-critical technologies fields. However, design parameters need to be carefully considered. A low overhang angle or diameter can result in dis...
A review, zirconia based dental materials NEZİR, MERVE; ÖZCAN, SUAT; Atilla, Aykan Onur; Evis, Zafer (2024-01-01) In dentistry, increasing aesthetic expectations and technological developments have increased the use of different materials that are biologically compatible, tooth-colored, and have mechanical properties provided by the m...
Boron nitride nanofiber/Zn-doped hydroxyapatite/polycaprolactone scaffolds for bone tissue engineering applications Turhan, Emine Ayşe; Akbaba, Sema; Tezcaner, Ayşen; Evis, Zafer (2023-05-01) In this study, Zn doped hydroxyapatite (Zn HA)/boron nitride nanofiber (BNNF)/poly-ε-caprolactone (PCL) composite aligned fibrous scaffolds are produced with rotary jet spinning (RJS) for bone tissue engineering applicatio...
3D porous bioceramic based boron-doped hydroxyapatite/baghdadite composite scaffolds for bone tissue engineering Jodati, Hossein; Evis, Zafer; Tezcaner, Ayşen; Alshemary, Ammar Z.; Motameni, Ali (2023-04-01) Making composite scaffolds is one of the well-known methods to improve the properties of scaffolds used in bone tissue engineering. In this study, novel ceramic-based 3D porous composite scaffolds were successfully prepare...
Additive manufacturing of hexagonal lattice structures: Tensile tests and validation Ture, Mustafa Okan; Evis, Zafer; ÖZTÜRK, FAHRETTİN (2023-04-01) In this paper, different hexagonal lattice structures of the tensile test specimens were designed, manufactured by additive manufacturing, and tested in three different lengths. Moreover, flat shape tensile test specimens ...

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