Adams D, Williams D F, Hill J
J Biomed Mater Res. 1978 Jan;12(1):35-42. doi: 10.1002/jbm.820120104.
A carbon fiber-reinforced carbon is being evaluated as a promising implant material. In a unidirectional composite, high strengths (1200 MN/m2 longitudinal flexural strength) and high modulus (140 GN/m2 flexural modulus) may be obtained with an interlaminar shear strength of 18 MN/m2. Alternatively, layers of fibers may be laid in two directions to give more isotopic properties. The compatibility of the material with bone has been studied by implanting specimens in holes drilled in rat femora. For a period of up to 8 weeks, a thin layer of fibrous tissue bridged the gap between bone and implant; but this tissue mineralizes and by 10 weeks, bone can be observed adjacent to the implant, giving firm fixation. Potential applications include endosseous dental implants where a greater strength in the neck than that provided by unreinforced carbon would be advantageous.
一种碳纤维增强碳材料正在作为一种有前景的植入材料进行评估。在单向复合材料中，可获得高强度（纵向弯曲强度为1200兆牛/平方米）和高模量（弯曲模量为140吉牛/平方米），层间剪切强度为18兆牛/平方米。或者，纤维层可以沿两个方向铺设，以赋予更多各向同性特性。通过将标本植入大鼠股骨钻的孔中，研究了该材料与骨的相容性。长达8周的时间里，一层薄的纤维组织桥接了骨与植入物之间的间隙；但这种组织会矿化，到10周时，可观察到植入物附近有骨组织，实现牢固固定。潜在应用包括骨内牙种植体，在这种情况下，颈部比未增强碳提供更大的强度将是有利的。
