Comparison Analysis of the Calculation Methods for Particle Diameter

Accurately obtaining the particle diameter is a chief prerequisite to calculating the growth dynamics of metallic iron during the deep reduction of Fe-bearing minerals. In this work, spherical copper powder with a volume moment mean of 70.43 μm was used as a benchmark for measuring the authenticity...

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Main Authors: Xiaoxue Zhang, Hongyang Wang, Liqun Luo
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/12/8/1107
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author Xiaoxue Zhang
Hongyang Wang
Liqun Luo
author_facet Xiaoxue Zhang
Hongyang Wang
Liqun Luo
author_sort Xiaoxue Zhang
collection DOAJ
description Accurately obtaining the particle diameter is a chief prerequisite to calculating the growth dynamics of metallic iron during the deep reduction of Fe-bearing minerals. In this work, spherical copper powder with a volume moment mean of 70.43 μm was used as a benchmark for measuring the authenticity of the data of the main calculation methods, including the Feret, diameter, equivalent diameter, and equivalent diameter plus correction factor methods. The results show that the measured particle count was less than the theoretical particle count. The particle diameters obtained through the Feret, diameter and equivalent diameter methods were all less than the benchmark, with deviations of 11.15 μm, 14.09 μm, and 12.71 μm, respectively. By contrast, the particle diameter obtained through the equivalent diameter plus correction factor method was slightly higher than the benchmark, with a deviation of 3.09 μm. Therefore, the equivalent diameter plus correction factor method is the most suitable for accurately obtaining the particle diameter, because most profiles do not pass through the particles’ centroid during sample preparation.
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spelling doaj.art-35276dd93ded45a0941fe8adc7baed302023-12-03T13:30:08ZengMDPI AGCrystals2073-43522022-08-01128110710.3390/cryst12081107Comparison Analysis of the Calculation Methods for Particle DiameterXiaoxue Zhang0Hongyang Wang1Liqun Luo2School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, ChinaAccurately obtaining the particle diameter is a chief prerequisite to calculating the growth dynamics of metallic iron during the deep reduction of Fe-bearing minerals. In this work, spherical copper powder with a volume moment mean of 70.43 μm was used as a benchmark for measuring the authenticity of the data of the main calculation methods, including the Feret, diameter, equivalent diameter, and equivalent diameter plus correction factor methods. The results show that the measured particle count was less than the theoretical particle count. The particle diameters obtained through the Feret, diameter and equivalent diameter methods were all less than the benchmark, with deviations of 11.15 μm, 14.09 μm, and 12.71 μm, respectively. By contrast, the particle diameter obtained through the equivalent diameter plus correction factor method was slightly higher than the benchmark, with a deviation of 3.09 μm. Therefore, the equivalent diameter plus correction factor method is the most suitable for accurately obtaining the particle diameter, because most profiles do not pass through the particles’ centroid during sample preparation.https://www.mdpi.com/2073-4352/12/8/1107particle diametercalculation methodsparticle countbenchmarkdeviation
spellingShingle Xiaoxue Zhang
Hongyang Wang
Liqun Luo
Comparison Analysis of the Calculation Methods for Particle Diameter
Crystals
particle diameter
calculation methods
particle count
benchmark
deviation
title Comparison Analysis of the Calculation Methods for Particle Diameter
title_full Comparison Analysis of the Calculation Methods for Particle Diameter
title_fullStr Comparison Analysis of the Calculation Methods for Particle Diameter
title_full_unstemmed Comparison Analysis of the Calculation Methods for Particle Diameter
title_short Comparison Analysis of the Calculation Methods for Particle Diameter
title_sort comparison analysis of the calculation methods for particle diameter
topic particle diameter
calculation methods
particle count
benchmark
deviation
url https://www.mdpi.com/2073-4352/12/8/1107
work_keys_str_mv AT xiaoxuezhang comparisonanalysisofthecalculationmethodsforparticlediameter
AT hongyangwang comparisonanalysisofthecalculationmethodsforparticlediameter
AT liqunluo comparisonanalysisofthecalculationmethodsforparticlediameter