Loading...
Please wait, while we are loading the content...
Similar Documents
Microstructural and Dielectric Properties of Zr Doped Microwave Sintered CaCu 3 Ti 4 O 12 Synthesized by Sol-Gel Route
| Content Provider | Semantic Scholar |
|---|---|
| Author | Jesurani, S. Kanagesan, Samikanu Hashim, Mohamad Ismail, Iqbal Yusca Ibrahim, Idza Riati |
| Copyright Year | 2015 |
| Abstract | Polycrystalline samples with the chemical formula CaCu 3 Ti 4−xZrxO12 (x = 0, 0.02, 0.1, 0.2, 0.5, and 0.1) CCTZO were synthesized frommetal nitrate solutions by the sol-gel method, followed by conventional andmicrowave heat treatments.The X-ray diffraction pattern of powder calcined at 800C in conventional furnace for 3 h showed formation of a single phase. The crystal structure did not change on doping with zirconium and it remained cubic in the five studied compositions. The surface morphology of samples sintered at 1000C inmicrowave furnace for 10min was observed using a high resolution scanning electronmicroscope (HR-SEM). The grain sizes were in the range of 250 nm–5 μm for these samples. HRSEM results show that doping with Zr enhanced grain growth or densification. Energy dispersive X-ray spectroscopy (EDX) confirmed the presence of Zr. The dielectric characteristics of Zr doped CCTOwere studied with an LCRmeter in the frequency range of 50Hz–1MHz. A very high dielectric constant 21,500 was observed for the sample doped with Zr (0.02mol%) at 50Hz. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://downloads.hindawi.com/journals/amse/2014/187420.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
