Micro-CT analysis and mechanical properties of Ti spherical and polyhedral void composites made with saccharose as a space holder material

Journal Article · Sun Feb 15 04:00:00 EST 2015 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2014.12.006· OSTI ID:22476027

Adamek, G. ^[1]; Pałka, K. ^[2]; Andrzejewski, D. ^[3]

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1. Poznan University of Technology, Institute of Materials Science and Engineering, Jana Pawla II no. 24, 61-138 Poznan (Poland)
2. Lublin University of Technology, Department of Materials Engineering, 20-618 Lublin (Poland)
3. Metal Forming Institute, Jana Pawla II no. 14, 61-139 Poznan (Poland)

The paper describes the formation, morphology and mechanical properties of Ti void composites. The Ti void composites were made using 100 and 325 mesh Ti powder for solid scaffold formation. The spherical and polyhedral voids (pores) were formed using saccharose particles (table sugar) of different shapes. The Ti void composite morphology was investigated by microcomputed tomography and scanning electron microscopy. The Ti void composites of designed porosity of 50–70% were made. Compression test was applied for mechanical properties estimation. It has been found, that Ti void composites made from 100 mesh Ti and those having spherical pores have a higher strength and elastic modulus, i.e. for the designed porosity of 50% for 100 and 325 mesh Ti void composites, a compressive strength was 32.32 and 20.13 MPa, respectively. It has been shown that this is related to better sintering of the 100 mesh Ti powders compared with the 325 mesh Ti powders. A correlation between microcomputed tomography data and mechanical properties has also been shown. The Ti void composites, made with the use of saccharose as a space holder, described in this work should be a promising material for biomedical applications, where interconnected pores and good mechanical properties are required. - Highlights: • Ti scaffolds of the porosity of 50–70% were made. • Saccharose particles as space holder were applied. • The voids in the scaffolds were designed with spherical and polyhedral shape. • The scaffold structure was investigated by SEM and micro-CT. • Micro-CT data and mechanical properties of the Ti scaffold have been correlated.

• OSTI ID: 22476027
• Journal Information: Materials Characterization, Journal Name: Materials Characterization Vol. 100; ISSN 1044-5803; ISSN MACHEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COMPOSITE MATERIALS
COMPRESSION STRENGTH
COMPUTERIZED TOMOGRAPHY
CORRELATIONS
POWDERS
PRESSURE RANGE MEGA PA
SACCHAROSE
SCANNING ELECTRON MICROSCOPY
SINTERING
SOLIDS
TITANIUM