MAIN CHARACTERISTICS OF THERMOELECTRIC MATERIALS PRODUCED THROUGH QUALITY CONTROL OF GRANULATED NANOPARTICLES WITH SIO2 INCLUSIONS
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2026
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| _version_ | 1866901598889836544 |
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| author | Khojimatov Islombek Turg'unboy o'g'li |
| author_facet | Khojimatov Islombek Turg'unboy o'g'li |
| contents | <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> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19557482 |
| institution | Zenodo |
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| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | MAIN CHARACTERISTICS OF THERMOELECTRIC MATERIALS PRODUCED THROUGH QUALITY CONTROL OF GRANULATED NANOPARTICLES WITH SIO2 INCLUSIONS Khojimatov Islombek Turg'unboy o'g'li <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> |
| title | MAIN CHARACTERISTICS OF THERMOELECTRIC MATERIALS PRODUCED THROUGH QUALITY CONTROL OF GRANULATED NANOPARTICLES WITH SIO2 INCLUSIONS |
| url | https://doi.org/10.5281/zenodo.19557482 |