{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,22]],"date-time":"2025-11-22T11:05:06Z","timestamp":1763809506491,"version":"build-2065373602"},"reference-count":60,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2016,2,27]],"date-time":"2016-02-27T00:00:00Z","timestamp":1456531200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Armalcolite, a rare ceramic mineral and normally found in the lunar earth, was synthesized by solid-state step-sintering. The in situ phase-changed novel ceramic nanocrystals of Ca-Mg-Ti-Fe based oxide (CMTFOx), their chemical reactions and bonding with polydimethylsiloxane (PDMS) were determined by X-ray diffraction, infrared spectroscopy, and microscopy. Water absorption of all the CMTFOx was high. The lower dielectric loss tangent value (0.155 at 1 MHz) was obtained for the ceramic sintered at 1050 \u00b0C (S1050) and it became lowest for the S1050\/PDMS nanocomposite (0.002 at 1 MHz) film, which was made by spin coating at 3000 rpm. The excellent flexibility (static modulus \u2248 0.27 MPa and elongation &gt; 90%), viscoelastic property (tan\u03b4 = E\u2033\/E\u2032: 0.225) and glass transition temperature (Tg: \u221258.5 \u00b0C) were obtained for S1050\/PDMS film. Parallel-plate capacitive and flexible resistive humidity sensors have been developed successfully. The best sensing performance of the present S1050 (3000%) and its flexible S1050\/PDMS composite film (306%) based humidity sensors was found to be at 100 Hz, better than conventional materials.<\/jats:p>","DOI":"10.3390\/s16030292","type":"journal-article","created":{"date-parts":[[2016,2,29]],"date-time":"2016-02-29T10:55:59Z","timestamp":1456743359000},"page":"292","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Synthesis and Characterizations of Novel Ca-Mg-Ti-Fe-Oxides Based Ceramic Nanocrystals and Flexible Film of Polydimethylsiloxane Composite with Improved Mechanical and Dielectric Properties for Sensors"],"prefix":"10.3390","volume":"16","author":[{"given":"Ashis","family":"Tripathy","sequence":"first","affiliation":[{"name":"Centre for Applied Biomechanics, Department of Biomedical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sumit","family":"Pramanik","sequence":"additional","affiliation":[{"name":"Centre for Applied Biomechanics, Department of Biomedical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ayan","family":"Manna","sequence":"additional","affiliation":[{"name":"Centre for Applied Biomechanics, Department of Biomedical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nabila","family":"Azrin Shah","sequence":"additional","affiliation":[{"name":"Department of Paediatric Dentistry &amp; Orthodontics, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hanie","family":"Shasmin","sequence":"additional","affiliation":[{"name":"Centre for Applied Biomechanics, Department of Biomedical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zamri","family":"Radzi","sequence":"additional","affiliation":[{"name":"Department of Paediatric Dentistry &amp; Orthodontics, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Noor","family":"Abu Osman","sequence":"additional","affiliation":[{"name":"Centre for Applied Biomechanics, Department of Biomedical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2016,2,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"196","DOI":"10.1016\/S0924-4247(01)00788-9","article-title":"Recent achievements in miniaturised humidity sensors\u2014A review of transduction techniques","volume":"96","author":"Rittersma","year":"2002","journal-title":"Sens. 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