ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Correlation between crystal structure and microwave properties of cordierite type dielectric ceramics
Abstract: Cordierite-based (Mg2Al4Si5O18) dielectric ceramics with a lower dielectric constant would have significant application potential as dielectric resonator and filter materials for future ultra-low-latency millimeter-wave and terahertz communication. Here we successfully synthesised Cordierite based ceramic compositions with substitution of Al and Si sites with chemical dopants to optimise the microwave dielectric properties, such as Q×f value and temperature coefficient. We believe understanding the crystallography information is paramount in order to optimise their electrical properties however, most of the structural characterisation techniques are insensitive to these light chemical elements, i.e. Al and Si. Instead, high-resolution neutron powder diffraction (room temperature), along with full-pattern Rietveld refinement, provides an opportunity to obtain composition-dependent phase transition, lattice information and atomic positions. The results obtain in this study not only underpin the origin of optimised microwave properties from atomic structural perspective but also provide instructive for the design and development of new and improved dielectric ceramics in the future.
Local Contact: Dr Dominic Fortes
Experimenter: Dr Ge Wang
Experimenter: Miss Hareem Zubairi
DOI: 10.5286/ISIS.E.RB2310149
ISIS Experiment Number: RB2310149
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2310149-1 | HRPD | 05 July 2026 | Download |
| - | HRPD | 29 November 2026 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
The recommended format for citing this dataset in a research
publication is as:
[author], [date], [title], [publisher],
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For Example:
Dr Dominic Fortes et al; (2023): Correlation between crystal structure and microwave properties of cordierite type dielectric ceramics, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310149
Data is released under the CC-BY-4.0 license.
