Brillouin scattering investigation of elastic properties of Cu–Mo solid solution thin films
Brillouin scattering investigation of elastic properties of Cu–Mo solid solution thin films
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DOI：
10.1063/1.1378331
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发表时间：
2001-06
影响因子：
3.2
通讯作者：
P. Djemia;F. Ganot;P. Moch;V. Branger;P. Goudeau
中科院分区：
文献类型：
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作者：
P. Djemia;F. Ganot;P. Moch;V. Branger;P. Goudeau
布里渊散射已被用于研究CuxMo 1 −x薄膜的弹性性能，厚度从200到430 nm不等，由离子束溅射。研究了Cu_（30）Mo_（70）和Cu_（70）Mo_（30）薄膜周围的两种成分以及纯Cu和纯Mo薄膜。样品基本上是随机取向的多晶体，导致各向同性的有效对称性。通过拟合所有的布里渊谱线，两个独立的有效弹性常数的这些薄膜已被确定，允许计算它们的弹性模量。结果表明，纯铜薄膜的弹性模量与体铜薄膜相近，而纯钼薄膜的弹性模量比体钼薄膜低10%左右。对于Cu-Mo固溶体，弹性常数值介于纯铜和钼之间。最后，在760 K退火的固溶体的力学性能与微观结构演变的影响进行了讨论。退火的So…
Brillouin scattering has been used to investigate the elastic properties of CuxMo1−x thin films with thicknesses varying from 200 up to 430 nm, elaborated by ion beam sputtering. Two compositions around Cu30Mo70 and Cu70Mo30 and pure Cu and Mo films have been studied. The samples are essentially randomly oriented polycrystals, leading to an isotropic effective symmetry. By fitting all the Brillouin spectral lines, two independent effective elastic constants of these films have been determined, allowing the calculation of their elastic moduli. Results indicate that pure copper thin films’ elastic properties are similar to the bulk copper ones whereas pure molybdenum thin films' Young's modulus is weaker (about 10%) than the bulk Mo one. Concerning Cu–Mo solid solutions, elastic constants values lie between pure copper and molybdenum ones. Finally, the effect of annealing at 760 K on the mechanical properties of the solid solutions in relation with the microstructural evolution is discussed. The annealed so...