Calculation of anisotropic properties of dental enamel from synchrotron data.
Calculation of anisotropic properties of dental enamel from synchrotron data.
复制标题
根据同步加速器数据计算牙釉质的各向异性特性。
DOI：
10.1107/s0909049511011071
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发表时间：
2011
影响因子：
2.5
通讯作者：
H. Klein
中科院分区：
文献类型：
--
作者：
L. Raue;H. Klein
Obtaining information about the intrinsic structure of polycrystalline materials is of prime importance owing to the anisotropic behaviour of individual crystallites. Grain orientation and its statistical distribution, i.e. the texture, have an important influence on the material properties. Crystallographic orientations play an important role in all kinds of polycrystalline materials such as metallic, geological and biological. Using synchrotron diffraction techniques the texture can be measured with high local and angular resolving power. Here methods are presented which allow the spatial orientation of the crystallites to be determined and information about the anisotropy of mechanical properties, such as elastic modulus or thermal expansion, to obtained. The methods are adapted to all crystal and several sample symmetries as well as to different phases, for example with overlapping diffraction peaks. To demonstrate the abilities of the methods, human dental enamel has been chosen, showing even overlapping diffraction peaks. Likewise it is of special interest to learn more about the orientation and anisotropic properties of dental enamel, since only basic information is available up to now. The texture of enamel has been found to be a tilted fibre texture of high strength (up to 12.5×). The calculated elastic modulus is up to 155 GPa and the thermal expansion up to 22.3 × 10(-6)°C(-1).
影响因子：
14
作者：
Al-Jawad, Maisoon;Steuwer, Axel;Wood, David J.
通讯作者：
Wood, David J.