Effects of Li doping on microstructural and electrical properties of ZnO–MgO–Al<sub>2</sub>O<sub>3</sub> linear resistance ceramics
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Post-publication record
- Nature
- Retraction
- Reason
- Error in Analyses;Error in Data;Error in Results and/or Conclusions;
- Date
- 7/3/2018 0:00
- Flagged by OpenAlex?
- Yes
Source: Retraction Watch, joined by DOI. OpenAlex records retraction as is_retracted, a boolean over a state space with at least four values, so it cannot express an expression of concern, a correction or a reinstatement — it reports them as false, which reads as “fine”.
Abstract
In this article, The ZnO-MgO-Al 2 O 3 linear resistance ceramics doped with Li 2 O have been prepared by the conventional ceramic method. The microstructure and the crystal characteristics were investigated by field emission scanning electron microscopy (FESEM) equipped with energy dispersive spectrometer (EDS) and X-ray diffraction (XRD) respectively. With the increasing of Li 2 O content, the grain growth of ZnO-based linear resistance ceramics was enhanced and the resistivity was also influenced significantly. The experimental result indicates that the doping of Li 2 O can reduces the nonlinear coefficient and improves the resistance temperature coefficient of the ZnO-based linear resistance ceramics obviously. The samples at the Li 2 O content of 8 mol% exhibit excellent electrical properties with the resistivity of 589.34 cm and the resistance temperature coefficient of 0.8 * 10 -4 / C.
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The record
- Venue
- Canadian Journal of Chemistry
- Topic
- Ferroelectric and Piezoelectric Materials
- Field
- Materials Science
- Canadian institutions
- —
- Funders
- Changzhou UniversityGovernment of Jiangsu Province
- Keywords
- ChemistryCeramicDopingElectrical resistivity and conductivityElectrical resistance and conductanceChemical engineeringMetallurgyMineralogyComposite materialOptoelectronicsMaterials scienceOrganic chemistry
- Has abstract in OpenAlex
- yes