@article{Klobes_2019,
	author = {Klobes, Benedikt },
	title = {Elastic Constants by Resonant Ultrasound Spectroscopy – Application to Thermoelectrics and Aluminum Alloys },
	journal = {Scientific Journal of Gdynia Maritime University},
	number = {112,
	pages = {60-68}, 
	year = {2019},
	url = {http://zeszyty.am.gdynia.pl/artykul-2716.html},


Resonant ultrasound spectroscopy is a non-destructive technique for determining the elastic constants of a material. In the context of thermoelectric materials, elastic constants can be used to investigate the speed of sound and, thus, the lattice thermal conductivity of a substance. For Mg2Si-Mg2Sn solid solutions, a possible connection between shear modulus and band convergence can be assumed in that way. Moreover, the rather low speed of sound in this system points towards a high contribution of optical phonons to thermal conductivity. Additionally, significant resonance frequency shifts are observed during natural aging of technical Al-Cu-Mg and Al-Mg-Si alloys, which are proposed to assist investigation of the early stages of clustering in the future.
},
	e-issn={2541-2486},
	publisher = {Gdynia Maritime University},
	keywords = {

resonant ultrasound spectroscopy, elastic constants, thermoelectric materials, age hardening, aluminum alloys},
	doi = {https://www.doi.org/10.26408/112.05}
}