{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,15]],"date-time":"2026-04-15T13:23:29Z","timestamp":1776259409336,"version":"3.50.1"},"reference-count":35,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2026,4,15]],"date-time":"2026-04-15T00:00:00Z","timestamp":1776211200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Micromachines"],"abstract":"<jats:p>Flexible textile membranes were prepared by impregnating woven cotton fabrics with silicone oil (SO)-based suspensions containing carbonyl iron (CI) microparticles and iron oxide microfibers (\u03bcFe). The microfibers were obtained by a microwave-assisted microplasma process and then co-dispersed with CI in SO. In the final membranes, the CI content was kept constant at \u03a6CI=10 vol.%, whereas the microfiber fraction was 0, 10 and 20 vol.%. The resulting membranes were used as dielectric layers in planar capacitors and examined at 1 kHz under a static magnetic field of up to 150 mT and compressive pressure up to 10 kPa. In every composition, the capacitance rose with increasing magnetic flux density, but both the zero-field capacitance and the field-induced capacitance change became smaller as the microfiber content increased. A monotonic, nearly linear increase in capacitance was also observed under compression over the tested pressure range. Within a simplified parallel-plate and magnetic-stress analysis, the capacitance data were further used to estimate the apparent relative permittivity, together with capacitance-derived indicators of deformation and stiffness. These estimates suggest field-induced stiffening of the membranes and a higher apparent low-field stiffness at higher microfiber loading. The obtained hybrid CI\/\u03bcFe-based textile membranes can serve as composition-tunable dielectric layers whose electrical response is influenced by both magnetic field and compressive loading, making them relevant for flexible capacitor-based elements.<\/jats:p>","DOI":"10.3390\/mi17040478","type":"journal-article","created":{"date-parts":[[2026,4,15]],"date-time":"2026-04-15T12:25:30Z","timestamp":1776255930000},"page":"478","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Hybrid Carbonyl Iron\/Iron Oxide Microfiber Textile Membranes with Magnetically Tunable Capacitance Under Compressive Loading"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6451-6397","authenticated-orcid":false,"given":"Ioan","family":"Bica","sequence":"first","affiliation":[{"name":"Department of Physics, West University of Timisoara, V. Parvan Avenue 4, 300223 Timisoara, Romania"},{"name":"Department of Physics, Craiova University, A. I. Cuza Street 13, 200585 Craiova, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2693-1383","authenticated-orcid":false,"given":"Eugen Mircea","family":"Anitas","sequence":"additional","affiliation":[{"name":"Department of Physics, Craiova University, A. I. Cuza Street 13, 200585 Craiova, Romania"},{"name":"Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Russia"},{"name":"Horia Hulubei, National Institute of Physics and Nuclear Engineering, 077125 Bucharest-Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1149-2066","authenticated-orcid":false,"given":"Octavian Madalin","family":"Bunoiu","sequence":"additional","affiliation":[{"name":"Department of Physics, West University of Timisoara, V. Parvan Avenue 4, 300223 Timisoara, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8076-231X","authenticated-orcid":false,"given":"Liviu","family":"Chirigiu","sequence":"additional","affiliation":[{"name":"Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, Petru Rares 2, 200349 Craiova, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7098-6026","authenticated-orcid":false,"given":"Gabriel","family":"Pascu","sequence":"additional","affiliation":[{"name":"Department of Physics, West University of Timisoara, V. Parvan Avenue 4, 300223 Timisoara, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,4,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Su, M., Li, P., Liu, X., Wei, D., and Yang, J. (2022). Textile-Based Flexible Capacitive Pressure Sensors: A Review. 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