Dr. Zafer Evis
Department of Engineering Sciences
Middle East Technical University
Ankara, 06531 Turkey
Office: MM 706
Tel: +90-312-2104450
Fax: +90-312-2102389
E-mail: evis@metu.edu.tr
Education:
Rensselaer Polytechnic Institute, Troy, NY
Ph.D. Engineering Science, December 2003
Rensselaer Polytechnic Institute, Troy, NY
M.S. Materials Engineering, December 1999
Middle East Technical University, Ankara, Turkey
B.S. Metallurgical and Materials Engineering, July 1996
Research Fields:
Sintering of Ceramics; Nanophase
ceramics; Biomaterials: bone implants; Bone: aging, bone mineral.
Academic Experience:
Middle East Technical University, Ankara, Turkey
Assoc. Prof. Dr., Department of Engineering Sciences, (06/09 – present)
Middle East Technical University, Ankara, Turkey
Assist. Prof. Dr., Department of Engineering Sciences, (9/05 – 06/09)
Middle East Technical University, Ankara, Turkey
Instructor Dr., Department of Engineering Sciences, (11/04 – 9/05)
Rensselaer Polytechnic Institute, Troy, NY
Post-Doctoral Research Associate, Department of Biomedical Engineering, (01/04-06/04)
Rensselaer Polytechnic Institute, Troy, NY
Teaching / Research Assistant, Department of Materials Science and Engineering (08/99-12/03)
Professional Experience:
General Electric, Global Research Center, Niskayuna, NY
Part-Time Engineer, Abradable Coatings (09/99-12/00)
CANSAS, Çankırı, Turkey
Quality Control Engineer, Metallography (08/96-12/96)
Publications:
International Journals:
1) B. Basar and Z. Evis, “Structural investigation of nanohydroxyapatite doped with Y3+ and F- ions”, Materials Science and Technology, 25, 794-798 (2009).
2) Z. Evis, M. Usta and I. Kutbay, “Improvement in sinterability and phase stability of hydroxyapatite and partially stabilized zirconia composites”, Journal of the European Ceramic Society, 29, 621-628 (2009).
3) Z. Evis and R. H. Doremus, “Effect of AlF3, CaF2 and MgF2 on hot-pressed hydroxyapatite–nanophase alpha-alumina composites”, Materials Research Bulletin, 43, 2643-2651 (2008).
4) Z. Evis and F. Ozturk, “Investigation of tensile strength of hydroxyapatite with various porosities by diametral strength test”, Materials Science and Technology, 24, 474-478 (2008).
5) Z. Evis, M. Usta and I. Kutbay, “Hydroxyapatite and zirconia composites: Effect of MgO and MgF2 on the stability of phases and sinterability”, Materials Chemistry and Physics,110, 68-75 (2008).
6) Z. Evis and R. H. Doremus, “Effect of MgF2 on hot pressed hydroxylapatite - monoclinic zirconia composites”, Journal of Materials Science, 42, 3739-3744 (2007).
7) Z. Evis and R. H. Doremus, “Hot pressed hydroxylapatite /
monoclinic zirconia composites with improved mechanical properties”, Journal of Materials Science, 42,
2426-2431 (2007).
8) Z. Evis and R. H. Doremus, “Effect of ZrF4 on
hot-pressed hydroxyapatite/monoclinic zirconia composites”, Scripta Materialia, 56, 53-56 (2007).
9) Z. Evis
and R. H. Doremus, “A study of phase stability and mechanical properties of
hydroxylapatite-nanosize α–alumina composites”, Materials Science and Engineering C, 27, 421-425 (2007).
10) Z. Evis, “Reactions in hydroxylapatite-zirconia
composites”, Ceramics International,
56, 987-991 (2007).
11) Z. Evis and R. H. Doremus, “Effect of YF3 on hot pressed hydroxyapatite and monoclinic zirconia composites”, Materials Chemistry and Physics, 105, 76-79 (2007).
12) M. Bayrak, F. Ozturk, M. Demirezen and Z. Evis, “Analysis of tempering treatment on material properties of DIN 41Cr4 and DIN 42CrMo4 steels”, Journal of Materials Engineering and Performance, 16, 597-600 (2007).
13) Z. Evis, “Al3+ doped nano-hydroxyapatites and their sintering characteristics”, Journal of the Ceramic Society of Japan, 114, 1001-1004 (2006).
14) Z. Evis, M. Sato and T. J. Webster, “Increased osteoblast adhesion on nanograined hydroxyapatite and partially stabilized zirconia composites” Journal of Biomedical Materials Research Part A, 78A, 500-507 (2006).
15) Z. Evis, C. Ergun and R. H. Doremus, “Hydroxylapatite-zirconia composites: Thermal stability of phases and sinterability as related to the CaO-ZrO2 phase diagram”, Journal of Materials Science, 40-5, 1127-1134 (2005).
16) Z. Evis and R. H. Doremus, “Coatings of hydroxyapatite – nanosize alpha alumina composites on Ti-6Al-4V”, Materials Letters, 59, 3824-3827 (2005).
Recent Conference
Presentations:
1) B. Basar, S.M. Toker, A. Tezcaner, D. Keskin and Z. Evis, “Improvements in phase stability and sinterability of yttrium and fluoride doped nano hydroxyapatites”, V. National Nanoscience and Nanotechnology Conference, Eskişehir, Turkey, 8-12 June 2009.
2) I. Kutbay, Z. Evis and M. Usta, “Effect of MgO and MgF2 on the stability of phases and sinterability of nano-hydroxyapatite and partially stabilized zirconia composites”, V. National Nanoscience and Nanotechnology Conference, Eskişehir, Turkey, 8-12 June 2009.
3) Z. P. Sun and Z. Evis, “Nano-hydroxyapatite powders doped with Mg & F ions”, 33th International Conference and Exposition on Advanced Ceramics and Composites, Daytona Beach, FL, USA, 18-23 January 2009.
4) B. Basar, Z. Evis, and A. Tezcaner, “Mechanical and biocompatibility of yttrium and fluorine doped hydroxyapatite”, 33th International Conference and Exposition on Advanced Ceramics and Composites, Daytona Beach, FL, USA, 18-23 January 2009.
5) B. Basar and Z. Evis “Structural investigation of nano hydroxyapatite doped with Y3+ and F- ions”, 13. Biyomedikal Mühendisliği Ulusal Toplantısı, Ankara, Turkey, 29-31 May 2008.
6) F. Ozturk, Z. Evis and S. Toros, “Hidroksiapatitin diyametral mukavemet testinin sonlu elemanlar metodu ile simülasyonu”, V. TÜRKİYE Abaqus Kullanıcılar Toplantısı Sunum Kitabı, sayfa: 231-244, Istanbul, Turkey, 8-9 November 2007.
7) Z. Evis and R. H. Doremus, “A study of phase stability and mechanical properties of hydroxylapatite – nanophase α–alumina composites”, Materials Science & Technology 2005 Conference and Exhibition, Pittsburgh, PA, USA, September 25-28, 2005.
8) Z. Evis and R.H. Doremus, “Hot pressed hydroxylapatite / zirconia composites with improved mechanical properties”, 29th International Conference on Advanced Ceramics and Composites, Cocoa Beach, FL, USA, January 23-28, 2005
9) Z. Evis and R.H. Doremus, “Hydroxylapatite – zirconia composites by a precipitation method”, 29th International Conference on Advanced Ceramics and Composites, Cocoa Beach, FL, USA, January 23-28, 2005
10) C. Ergun, Z.
Evis and R.H. Doremus, “Phase
interactions in monoclinic zirconia reinforced hydroxylapatite bioceramics”, 7th Biennial
ASME Conference Engineering Systems Design and Analysis, Manchester, UK, July
19-22, 2004
11) C. Ergun, Z.
Evis and R.H. Doremus, “Interface in hydroxylapatite coated Ti-4Al-4V”, 7th Biennial
ASME Conference Engineering Systems Design and Analysis, Manchester, UK, July
19-22, 2004
12) C. Ergun, Z. Evis and R.H. Doremus, “Interface diffusion/ reaction in the hydroxylapatite coated Co-Cr-Mo alloy”, 106nd Annual Meeting and Exposition of the American Ceramic Society, Indianapolis, IN, USA, April 18-21, 2004
13) Z. Evis and R.H. Doremus, “Improved thermal stability of hydroxylapatite- nanophase alpha alumina composites and their coatings on Ti-6Al-4V”, 106nd Annual Meeting and Exposition of the American Ceramic Society, Indianapolis, IN, USA, April 18-21, 2004.
14) C. Ergun, Z. Evis and R.H. Doremus, “Thermal stability of hydroxylapatite-zirconia composites”, 106nd Annual Meeting and Exposition of the American Ceramic Society, Indianapolis, IN, USA, April 18-21, 2004.
Projects:
1) Project Manager: TUBITAK Young Investigator Career Project (2006-2010)
2) Project Manager: METU-BAP 2005-2007
Awards:
Middle East Technical University: Young Researcher Success Award (2008)
Ministry of National Education Scholarship for MS and PhD Studies (1998-2003).
Tubitak Career Project (2005)
METU and Tubitak Publication Awards (2005-2009)