Materials Processing Towards Development of Rapid Prototyping Technology for Manufacturing Biomedical Implants
Pekin, Senol
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https://hdl.handle.net/2142/82938
Description
Title
Materials Processing Towards Development of Rapid Prototyping Technology for Manufacturing Biomedical Implants
Author(s)
Pekin, Senol
Issue Date
2000
Doctoral Committee Chair(s)
Zangvil, Avigdor
Department of Study
Materials Science and Engineering
Discipline
Materials Science and Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Health Sciences, Medicine and Surgery
Language
eng
Abstract
Sintering of gel-cast calcium hydroxyapatite was studied by means of thermal analysis, XRD, mechanical testing, and SEM, both for sub-micron and the agglomerated powder type. Transformation temperatures of tri-calcium phosphate upon cooling were determined as 1475°C for (alpha' to alpha, 1190°C for alpha to beta, and 800--700°C range for beta to hydroxy-oxyapatite transformation. Dilatometry revealed that dimensional change reaches to saturation at 1200°C. Mechanical testing of the parts sintered at 1200--1500°C revealed that compressive strength in the 2--10 MPa range was achieved.
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