Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği

Permanent URI for this collectionhttps://hdl.handle.net/11147/4719

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Department: search.filters.department.Izmir Institute of TechnologyPublication Index: search.filters.publicationIndex.WoS

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  • Article
    Citation - WoS: 3
    Citation - Scopus: 2
    Electrocaloric Behaviour of Tape Cast and Grain Oriented Nbt-Kbt Ceramics
    (Elsevier Sci Ltd, 2024) Unal, Muhammet Ali; Karakaya, Merve; Irmak, Tugce; Yildirim-Ozarslan, Gokce; Avci, A. Murat; Fulanovic, Lovro; Adem, Umut
    We have investigated the effects of grain orientation and tape casting process on the electrocaloric properties of 0.82Na(0.5)Bi(0.5)TiO(3)-0.18 K0.5Bi0.5TiO3 (0.82NBT-0.18KBT) ceramics at the Morphotropic Phase Boundary (MPB), using direct and indirect measurements. We observe a larger electrocaloric response for the template-free ceramics compared to 7 and 10 wt% template containing ones, suggesting that grain orientation along rhombohedral < 100 > does not improve the electrocaloric response. Indirect measurements yielded a large adiabatic temperature change of around 3 K under an electric field of 50 kV/cm, which is significantly higher than 0.9 K reached at a lower electric field of 40 kV/cm using the direct measurement.
  • Review
    Citation - WoS: 44
    Citation - Scopus: 48
    Review on Polymeric, Inorganic, and Composite Materials for Air Filters: From Processing To Properties
    (John Wiley and Sons Inc, 2021) Henning,L.M.; Abdullayev,A.; Vakifahmetoglu,C.; Simon,U.; Bensalah,H.; Gurlo,A.; Bekheet,M.F.
    Particulate and gaseous air pollutants pose a threat to human health and contribute to climate change. By today, air filters, stationary and portable, are markedly improved and can often provide innocuous air pollution levels. After introducing the classification and standards on air filters, the influence of the processing route and its parameters on the resulting air filter properties and consequently its performance are discussed. Numerous tools are presented to adjust structural properties such as fiber or pore diameter, specific surface area, surface charge, hydrophilicity, or photocatalytic activity to achieve the desired performance in terms of high filtration efficiencies, sufficient mechanical stability, regeneration eligibility, antimicrobial and optical properties. In particular, inorganic and composite materials as well as nonfibrous structures are covered, which are currently holding an outsider position in an air filter community dominated by polymeric materials and fibrous structures. © 2021 The Authors. Advanced Energy and Sustainability Research published by Wiley-VCH GmbH.