Siriluck, S, Zafar, U, Hare, C et al. (5 more authors) (2021) Influence of mechanical properties on milling of amorphous and crystalline silica-based solids. Powder Technology, 391. pp. 239-252. ISSN 0032-5910
Abstract
Milling is an important and energy-intensive operation for preparing particulate solids to required specifications. It has been studied extensively to improve the rate of milling, energy utilisation and control of milling operations. With development of new materials and application of new milling systems, understanding the underlying science of milling is highly desirable for efficient and predictable size reduction. In the glass industry, silicate glasses have been developed with very special attributes, but the size reduction still poses many challenges. In this work, breakability and grindability of silicate materials in both crystalline and amorphous forms are investigated and correlations for their milling rate and energy utilisation as a function of material properties are developed. This involves physical and mechanical characterisation of the selected materials along with the analysis of milling rate in a single ball mill to develop a better understanding of the milling process. The breakability index, as described by the ratio of hardness to the square of toughness, describes well the milling rate of the crystalline form undergoing semi-brittle failure. The amorphous form of the test materials does not show a strong dependence on the breakability index, as the failure mode is brittle and dominated by pre-existing flaws.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 Elsevier B.V. All rights reserved. This is an author produced version of an article, published in Powder Technology. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Milling; Energy utilisation; Breakability; Grindability; Hardness; Toughness; Crystalline; Amorphous |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Funding Information: | Funder Grant number Corning Global Research no ext ref |
Depositing User: | Symplectic Publications |
Date Deposited: | 15 Jun 2021 10:50 |
Last Modified: | 24 Feb 2025 11:33 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.powtec.2021.06.016 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:175149 |
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