The mechanical and electrical properties of modified-BNKT lead-free ceramics
| Autor: | Pharatree Jaita, Tawee Tunkasiri, Ratabongkot Sanjoom, Pongthep Arkornsakul, Chatchai Kruea-In, Pichitchai Butnoi, Supalak Manotham, Denis Russell Sweatman |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Oxide Nanoparticle Sintering 02 engineering and technology Dielectric 01 natural sciences symbols.namesake chemistry.chemical_compound Tetragonal crystal system 0103 physical sciences Materials Chemistry Ceramic Electrical and Electronic Engineering Porosity 010302 applied physics 021001 nanoscience & nanotechnology Condensed Matter Physics Electronic Optical and Magnetic Materials Chemical engineering chemistry Control and Systems Engineering visual_art Ceramics and Composites visual_art.visual_art_medium symbols 0210 nano-technology Raman spectroscopy |
| Zdroj: | Integrated Ferroelectrics. 187:147-155 |
| ISSN: | 1607-8489 1058-4587 |
| DOI: | 10.1080/10584587.2018.1444888 |
| Popis: | This research was conducted to study influence of ferric oxide nanoparticles on the properties of modified BNKT ceramics. The optimum sintering temperature was 1125°C at which all compositions had low porosity (0.12–0.19%). Raman and XRD showed coexisting rhombohedral and tetragonal phases throughout the entire compositional range. The Pr, d33 and g33 were slightly degraded when the additive was added. The maximum room temperature dielectric (ϵ′ = 1689, tan δ = 0.0606) and mechanical properties (HV = 5.6 GPa, HK = 4.9 GPa, E = 93 GPa and KIC = 1.58 MPa.m1/2) was obtained for the 2 vol% sample. |
| Databáze: | OpenAIRE |
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