TY  - JOUR
T1  - Mechanical Properties of Dense Artificial Bone Fabricated  by Powder Processing
AU  - Yontar, Onur
AU  - Gürbüz, Mevlüt
PY  - 2019
DA  - March
JF  - International Journal of Multidisciplinary Studies and Innovative Technologies
JO  - IJMSIT
PB  - SET Teknoloji
WT  - DergiPark
SN  - 2602-4888
SP  - 22
EP  - 24
VL  - 3
IS  - 1
LA  - en
AB  - Osseointegration and osteoconduction areessentials for artificial bone tissue production. Hydroxyapatite has beenextensively used in orthopedic application due to its similar composition withbone. It is a highly biocompatible calcium-phosphate based bioceramic whichcould be shaped into bone like structure with powder processing techniques.Gradually changing porosity pattern of bone maintains both ease of transmissionof bodily fluids and structural strength. Due to fracture type, in someinstances bone tissue could not be recoverable and aligning large bone fractalsrequires dense bone tissue to place fixation apparatus. In this study, the aimis to produce a dense hydroxyapatite artificial bone and the effects ofsintering duration and temperature were investigated. Metal ion doped calcium phosphates inhydroxyapatite form (<100nm) were used as powder. Two different types ofPolyvinyl alcohol (PVA, with molecular weights of 10000 and 60000g/mol) wereused as plasticizers to obtain strong green samples. The samples were sinteredbetween 1000°C to 1200°C for 60-300 min. Hardness and compressiontest were performed to observe effect of the process parameters. From the SEMimages and density measurements, highly dense samples were fabricated at 1200°Cfor 120 minutes. Compressive strength andhardness were enhanced up to 71 MPa and 4.5 GPa, respectively.
KW  - Hydroxyapatite
KW  - Artificial bone
KW  - Bioceramic
KW  - Powder processing
KW  - Biomechanic
CR  - J. Venkatesan and S.K. Kim, “Chitosan Composites for Bone Tissue Engineering - An Overview”, Marine Drugs, 8, 2252-2266, 2010.
CR  - H. Zhu, D. Guo, L. Sun, H. Li, D.A.H. Hanaor, F. Schmidt and K. Xu, “Nanostructural insights into the dissolution behavior of Sr-doped hydroxyapatite”, Journal of the European Ceramic Society,Volume 38, Issue 16, Pages 5554-5562, 2018.
CR  - H. Zhou and J. Lee, “Nanoscale hydroxyapatite particles for bone tissue engineering”, Acta Biomaterialia, Volume 7, Issue 7, Pages 2769-2781, 2011.
CR  - G. Hannink and J.J.C. Arts, “Bioresorbability, porosity and mechanical strength of bone substitutes: What is optimal for bone regeneration?”, Injury, Volume 42, Supplement 2, Pages S22-S25, 2011.
CR  - M. Gürbüz, G. Günkaya and A. Doğan, “Electrospray deposition of SnO2 films from precursor solution”, Surface Engineering, 2016.
UR  - https://dergipark.org.tr/tr/pub/ijmsit/issue//510772
L1  - https://dergipark.org.tr/tr/download/article-file/663658
ER  -