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. 2021 Feb 8;11:3330. doi: 10.1038/s41598-021-82821-0

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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(a) Interplanar spacing d₁₁₀ of bcc W in the 3-layer-system as a function of time during annealing up to 650 °C (blue markers) and 1520 °C (red markers). The duration of the isothermal part was about 6 h. The green ellipse highlight the initial increase in d-values due to thermal expansion below 200 °C. (b) Integrated intensity of (110) bcc W in 3-layer-systems annealed for 6 h at temperatures 650 °C (blue markers) and 1520 °C (red markers).