中山醫學大學機構典藏 CSMUIR:Item 310902500/23514
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    题名: Improved Mechanical Properties of Ultra-High Shear Force Mixed Reduced Graphene Oxide/Hydroxyapatite Nanocomposite Produced Using Spark Plasma Sintering
    作者: Wang, BY;Hsu, S;Chou, CM;Wu, TI;Hsiao, VKS
    关键词: hydroxyapatite;graphene oxide;nanocomposite;ultra-high shear force;spark plasma sintering;mechanical property
    日期: 2021
    上传时间: 2022-08-05T09:38:31Z (UTC)
    出版者: MDPI
    摘要: The addition of nanomaterials, such as graphene and graphene oxide, can improve the mechanical properties of hydroxyapatite (HA) nanocomposites (NCPs). However, both the dispersive state of the starting materials and the sintering process play central roles in improving the mechanical properties of the final HA NCPs. Herein, we studied the mechanical properties of a reduced graphene oxide (r-GO)/HA NCP, for which an ultra-high shear force was used to achieve a nano-sized mixture through the dispersion of r-GO. A low-temperature, short-duration spark plasma sintering (SPS) process was used to realize high-density, non-decomposing r-GO/HA NCPs with an improved fracture toughness of 97.8% via the addition of 0.5 wt.% r-GO. Greater quantities of r-GO improve the hardness and the fracture strength. The improved mechanical properties of r-GO/HA NCPs suggest their future applicability in biomedical engineering, including use as sintered bodies in dentistry, plasma spray-coatings for metal surfaces, and materials for 3D printing in orthopedics.
    URI: http://dx.doi.org/10.3390/nano11040986
    https://www.webofscience.com/wos/woscc/full-record/WOS:000643432300001
    https://ir.csmu.edu.tw:8080/handle/310902500/23514
    關聯: NANOMATERIALS ,2021,v11,issue 4
    显示于类别:[中山醫學大學研究成果] 期刊論文

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