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Data for HRXRD study of the Theoretical densities of novel reactive sintered boride candidate neutron shielding materials

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Marshall, Jessica M., Walker, David and Thomas, Pam A. (2020) Data for HRXRD study of the Theoretical densities of novel reactive sintered boride candidate neutron shielding materials. [Dataset]

[img] Microsoft Excel (Processed XRD data from first iteration of Reactive Sintered Borides)
JNM_Novel_RSBs.xlsx - Published Version
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[img] Microsoft Excel (Raw data from first RSB sample iteration 2016-2017)
JNM_Novel_BorideArchive.xlsx - Published Version
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[img] Microsoft Excel (XRD scan compilation Yobs and Ycalc from best fit models)
cWC-RSB-XRD_raw data.xlsx - Published Version
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[img] Archive (ZIP) (Individual XRD files (Yobs, Ycalc from best models and difference (Ycalc-Yobs))
cWC-RSB data archive.zip - Published Version
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[img] Microsoft Word (README.txt for Excel and XRD data files)
README_JMM_borides_data.docx - Published Version
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[img] Microsoft Word (Appendix Material to JNM paper)
JNM supplementary data.docx - Published Version
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Abstract

Reactive Sintered Borides (RSBs) are novel borocarbide materials derived from FeCr-based cemented tungsten (FeCr-cWCs) show considerable promise as compact radiation armour for proposed spherical tokamak. Six candidate compositions (four RSBs, two cWCs) were evaluated by high-resolution X-ray diffraction (XRD), inductively coupled plasma (ICP), energy dispersive X-ray analysis (EDX) and scanning electron microscopy (SEM) to determine the atomic composition, phase presence, and theoretical density. RSB compositions were evaluated with initial boron contents equivalent to 25 at%<x < 40 at%. Stable RSB bodies formed from sintering for compositions where B at%>30 at%. All RSB compositions showed delamination and carbon enrichment in the bulk relative to the surface, consistent with non-optimal binder removal and insufficient sintering time. Phase abundance within RSBs derived from powder XRD was dominated by iron tungsten borides (FeWB/FeW2B2), tungsten borides (W2B5/WB) and iron borides. The most optimal RSB composition (B5T522W) with respect to physical properties and highest ρ/ρtheo had ρtheo = 12.59 ± 0.01 g cm−3 for ρ/ρtheo = 99.3% and had the weigh-in and post-sintered W: B: Fe abundance closest to 1: 1: 1. This work indicates that despite their novelty, RSB materials can be optimized and in principle be processed using existing cWC processing routes.

Item Type: Dataset
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TN Mining engineering. Metallurgy
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Type of Data: Experimental data
Library of Congress Subject Headings (LCSH): Crystallography, Ceramic metals, Shielding (Radiation), Nuclear fusion, Borides , Tungsten , Carbides, Powder metallurgy, Refractory materials
Publisher: University of Warwick, Department of Physics
Official Date: 4 February 2020
Dates:
DateEvent
4 February 2020Published
28 January 2020Accepted
11 November 2019Created
Status: Not Peer Reviewed
Publication Status: Published
Media of Output (format): .xlsx .docx .csv
Access rights to Published version: Open Access
Copyright Holders: University of Warwick
Description:

Notes on organisation for the dataset
Part 1: Materials data (JMM_Novel_BorideArchive.xlsx)
This spreadsheet records the recipes and the recipe generator for cWC and Reactive Sintered Boride (RSB) material. Sample names are determined by their composition determined at weigh-in. Some exceptions occur which are explained in detail.
It consists of 4 sheets: (1) Composition calculator, (2) 1450K DMK vacuum – mixed cWC-RSB and RSB compositions, (3) 1450K SinterHIPP – mostly RSB compositions and (4) evaluation.
Part 3: Raw XRD data (“cWC-RSB-XRD_raw data.xlsx”)
This Excel document contains raw XRD data obtained from the powder and solid sample evaluated in this study. For all samples Co radiation was used to mitigate Fe fluorescence. Each composition has its own page with each page comprising of four columns. Constituent phases used in TOPAS models and their relative abundances derived from the diffracted intensity fraction are shown in the spreadsheet JNM_Novel_RSB.xlsx. Data is also available for each scan in individual *.csv files.
Part 3: Processed XRD data (“JNM_Novel_RSB.xlsx”)
This spreadsheet contains the composition data measured from (1) direct measurements via ICP and EDX and (2) Phase data obtained from XRD scans. Most of these sheets contain tabulated and graphical data from the models and the phase abundance determined from XRD modelling.
It consists of 14 sheets: (1) Phase abundances and PDFs, (2) Composition difference – exploring composition trends, (3) Composition difference – containing direct measurements, (4) – (13) spreadsheet calculations focusing on powder and solid XRD spectra of various compositions, (14) Boride pie charts compiling all the phases identified from RSBs.
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
RDF18033University of Warwickhttp://dx.doi.org/10.13039/501100000741
Related URLs:
Contributors:
ContributionNameContributor ID
DepositorMarshall, Jessica M.82546

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