Analysis of the Influence of Contaminants on Microhardness Sintered Boron Carbide Samples

Q3 Engineering

Journal of Applied Research and Technology Pub Date : 2022-08-31 DOI:10.22201/icat.24486736e.2022.20.4.1327

L. S. Aguilera, Manoel Antônio Da Fonseca Costa Filho, Celio Albano Costa Neto, J. D. de Campos

引用次数: 0

Abstract

This work presents ANOVA and Tukey’s statistic tests that were carried out in Knoop microhardness results of boron carbide sintered samples. Three samples, A, B and C, of different processing conditions were tested and statistical analysis showed that microhardness results are strongly influenced by porosity and chemical composition, mainly due to presence of C(2H) and WB2.5 contaminant phases. Those phases promoted higher densification in A and B samples and it was found that A ≈ B > C is the relation between the microhardness results of the samples, while A ≈ B < C is the porosity ratio of the samples. Furthermore, this work aims to apply a statistical tool to evaluate the microhardness results performed on advanced ceramics and, using these results, to control parameters in the sintering process, showing that a deeper statistical analysis is necessary for the interpretation and validation of the results merit.

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污染物对烧结碳化硼试样显微硬度的影响分析

本文介绍了对碳化硼烧结样品的Knoop显微硬度结果进行的方差分析和Tukey统计检验。对不同加工条件下的A、B、C三种样品进行了测试，统计分析表明，孔隙度和化学成分对显微硬度结果的影响很大，主要是由于C(2H)和WB2.5污染物相的存在。结果表明:A≈B > C为试样显微硬度结果之间的关系，A≈B < C为试样的孔隙率比。此外，本工作旨在应用统计工具来评估高级陶瓷的显微硬度结果，并使用这些结果来控制烧结过程中的参数，这表明需要更深入的统计分析来解释和验证结果的价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Applied Research and Technology 工程技术-工程：电子与电气

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The Journal of Applied Research and Technology (JART) is a bimonthly open access journal that publishes papers on innovative applications, development of new technologies and efficient solutions in engineering, computing and scientific research. JART publishes manuscripts describing original research, with significant results based on experimental, theoretical and numerical work. The journal does not charge for submission, processing, publication of manuscripts or for color reproduction of photographs. JART classifies research into the following main fields: -Material Science: Biomaterials, carbon, ceramics, composite, metals, polymers, thin films, functional materials and semiconductors. -Computer Science: Computer graphics and visualization, programming, human-computer interaction, neural networks, image processing and software engineering. -Industrial Engineering: Operations research, systems engineering, management science, complex systems and cybernetics applications and information technologies -Electronic Engineering: Solid-state physics, radio engineering, telecommunications, control systems, signal processing, power electronics, electronic devices and circuits and automation. -Instrumentation engineering and science: Measurement devices (pressure, temperature, flow, voltage, frequency etc.), precision engineering, medical devices, instrumentation for education (devices and software), sensor technology, mechatronics and robotics.