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首页> 外文会议>Advances in bioceramics and porous ceramics V >EFFECT OF PRECURSOR SOLUBILITY ON THE MECHANICAL STRENGTH OF HAP BLOCK
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EFFECT OF PRECURSOR SOLUBILITY ON THE MECHANICAL STRENGTH OF HAP BLOCK

机译：前体溶解度对HAP砌块机械强度的影响

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摘要

The effect of the solubility of the precursors, alpha tricalcium phosphate (α-TCP) and beta tricalcium phosphate (β-TCP) on the mechanical property of hydroxyapatite (HAp) bone substitute was investigated. Uniaxially pressed compacts starting from these precursors were treated hydrothermally with 1 mol/L of ammonia solution at 200℃for various durations. XRD analysis revealed that a-TCP took 3 hours whereas β-TCP took 240 hours for complete transformation to HAp. The porosity of HAp block obtained from β-TCP was found to be lower than that of HAp block from α-TCP. Diametral tensile strength of HAp block from β-TCP showed a significantly higher value than that of HAp block obtained from α-TCP. It is therefore concluded that solubility of precursor affects the mechanical strength of the HAp block.
机译：研究了前体，α-磷酸三钙（α-TCP）和β-磷酸三钙（β-TCP）的溶解度对羟基磷灰石（HAp）骨替代物力学性能的影响。从这些前体开始，单轴压制的压坯在200℃下用1 mol / L的氨水进行水热处理不同的时间。 XRD分析表明，a-TCP需要3小时，而β-TCP需要240小时才能完全转化为HAp。发现由β-TCP获得的HAp嵌段的孔隙率低于由α-TCP获得的HAp嵌段的孔隙率。来自β-TCP的HAp嵌段的径向拉伸强度显示出明显高于来自α-TCP的HAp嵌段的径向拉伸强度。因此得出结论，前体的溶解度会影响HAp嵌段的机械强度。

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  • 会议地点 Daytona Beach FL(US);Daytona Beach FL(US);Daytona Beach FL(US);Daytona Beach FL(US)
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    Nurazreena Ahmad; Kanji Tsuru; Melvin L. Munar; Shigeki Matsuya; Kunio Ishikawa;

  • 作者单位

    Department of Biomaterials, Faculty of Dental Science, Kyushu University, JAPAN;

    Department of Biomaterials, Faculty of Dental Science, Kyushu University, JAPAN;

    Department of Biomaterials, Faculty of Dental Science, Kyushu University, JAPAN;

    Sections of Bioengineering, Department of Dental Engineering, Fukuoka Dental College, JAPAN;

    Department of Biomaterials, Faculty of Dental Science, Kyushu University, JAPAN;

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