|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XIX
||Microstructures and Mechanical Properties of Non-toxic TiZr-based BMG Foams with Customized Porosity for Bio-implant Application
||Po-Sung Chen, Yu-Chin Liao, Sin-Mao Song, Pei-Hua Tsai, Jason S. C. Jang, Xavier Pei-Chun Wong, Van Tai Nguyen
|On-Site Speaker (Planned)
Non-toxic TiZr-based bulk metallic glass foams (BMGFs) with customized porosity were successfully fabricated by hot pressing the mixture of TiZr-based metallic glass powder with different volume fraction of Al or Cu space holders at its supercooled temperature region under vacuum atmosphere. The XRD results reveal that the porous samples maintained amorphous states after hot pressing process. The corresponding porosities of each BMGFs were examined by SEM. Similar mechanical properties to the human bones can be obtained by tuning the porosity of the samples based on the Gibson and Ashby model. Increasing porosity of the samples led to a decrease of compressive strength and Young’s modulus. In the biocompatibility test, the fabricated porous sample by using Cu spacer particles show that cell viability increased with increasing incubation time. The results of calcium deposition rate are always higher than 100% and evidence that these BMGFs are positively biocompatible in the human body.
||Mechanical Properties, Biomaterials,