Effect of Morphological Features and Surface Area of Hydroxyapatite on the Fatigue Behavior of Hydroxyapatite-Polyethylene Composites
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- 作者：Roy Joseph and K. E. Tanner
- 刊名：Biomacromolecules
- 出版年：2005
- 出版时间：March 2005
- 年：2005
- 卷：6
- 期：2
- 页码：1021 - 1026
- 全文大小：414K
- 年卷期：v.6,no.2(March 2005)
- ISSN：1526-4602
文摘
The effect of surface area and morphological features of filler particles on the fatigue behavior ofhydroxyapatite-filled high-density polyethylene composites was studied. Composites containing 40 vol %filler were injection-molded into tensile bars, 
-irradiated, and subjected to sinusoidal tensile fatigue at afrequency of 2 Hz. To simulate the physiological environment, the tests were conducted at 37 
C in saline.Results showed that properties such as secant modulus, cyclic energy dissipation, dynamic creep strain,hysteresis loops, and even fracture surfaces differ depending on the morphology and surface area of thefillers used.
-irradiated, and subjected to sinusoidal tensile fatigue at afrequency of 2 Hz. To simulate the physiological environment, the tests were conducted at 37 C in saline.Results showed that properties such as secant modulus, cyclic energy dissipation, dynamic creep strain,hysteresis loops, and even fracture surfaces differ depending on the morphology and surface area of thefillers used.