Yatongchai Chokchai, Wren Anthony W, Curran Declan J, Hampshire Stuart, Towler Mark R
Inamori School of Engineering, Alfred University, Alfred, NY, USA.
J Mater Sci Mater Med. 2014 Jul;25(7):1645-59. doi: 10.1007/s10856-014-5215-3. Epub 2014 Apr 19.
The effects of increasing bioactive glass additions, SiO2-TiO2-CaO-Na2O-ZnO up to 25 wt% in increments of 5 wt%, on the physical and mechanical properties of hydroxyapatite (HA) sintered at 900, 1000, 1100 and 1200 °C for 2 h was investigated. Increasing both the glass content and the temperature resulted in increased HA decomposition. This resulted in the formation of a number of bioactive phases. However the presence of the liquidus glass phase did not result in increased densification levels. At 1000 and 1100 °C the additions of 5 wt% glass resulted in a decrease in density which never recovered with increasing glass content. At 1200 °C a cyclic pattern resulted from increasing glass content. There was no direct relationship between strength and density with all samples experiencing no change or a decrease in strength with increasing glass content. Weibull statistics displayed no pattern with increasing glass content.
研究了以5 wt%的增量增加生物活性玻璃添加量（SiO₂-TiO₂-CaO-Na₂O-ZnO，最高达25 wt%）对在900、1000、1100和1200℃下烧结2小时的羟基磷灰石（HA）的物理和力学性能的影响。玻璃含量和温度的增加均导致HA分解增加。这导致形成了许多生物活性相。然而，液相玻璃相的存在并未导致致密化程度增加。在1000和1100℃下，添加5 wt%的玻璃导致密度降低，且随着玻璃含量的增加，密度从未恢复。在1200℃下，玻璃含量增加导致出现循环模式。强度与密度之间没有直接关系，所有样品的强度均未随玻璃含量的增加而发生变化或降低。威布尔统计显示，随着玻璃含量的增加没有规律。
