保存先:
| 第一著者: | |
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| フォーマット: | Recurso digital |
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| 出版事項: |
Zenodo
2026
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| オンライン･アクセス: | https://doi.org/10.5281/zenodo.19557482 |
| タグ: |
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目次:
- <p>The global demand for high-efficiency energy conversion systems has put nanostructured thermoelectric (TE) materials at the forefront of materials science. This study provides an in-depth investigation into the synergistic effects of SiO<sub>2</sub> nanoparticle granulation and rigorous quality control (QC) on the dimensionless figure of merit (ZT). Silicon dioxide, acting as a secondary phase, was processed through a precise spray-drying technique to form controlled granulated precursors. Our findings demonstrate that maintaining a strict granule size distribution and structural integrity during Spark Plasma Sintering (SPS) leads to a dramatic reduction in lattice thermal conductivity κ<sub>1</sub> by 35-40 %. The study highlights how quality-controlled granulation prevents the common pitfalls of nanoparticle agglomeration, thereby maintaining electrical conductivity while enhancing phonon scattering. This methodology offers a scalable pathway for the industrial production of high-performance TE modules for waste heat recovery.</p>