Investigation of the effect of SiC content on the microstructure, physical properties and hardness of SiC/Ni composites
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Investigation of the effect of SiC content on the microstructure, physical properties and hardness of SiC/Ni composites
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| Creator |
Hanan M. Makled
Mahmudun N. Chowdhury Ahmed I. Ali Ibrahim S.Qassem Walid M. Daoush |
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| Subject |
Characterization and properties
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| Description |
Nickel matrix composites reinforced with alpha-silicon carbide of various concentrations (up to 4 wt.%) were investigated. Samples were made by powder mixing followed by a process of powder technology. The resulting SiC/nickel composite powders were cold compacted at 400 MPa in a single-axis head, followed by sintering in a controlled furnace at 1000 °C in an atmosphere of sintering a hydrogen/nitrogen mixture of 3:2. The SiC/Ni powders, as well as crushed and polished consolidated composites were investigated using a scanning electron microscope and X-ray diffraction (XRD). The microstructures of the obtained sintered SiC/Ni composites show a uniform distribution of SiC particles in the nickel matrix. XRD data showed that the sintered SiC/Ni composites consist mainly of (fcc) Ni as the main phase and α-SiC phase. To assess the sintering process of the obtained SiC/Ni composites, their density, electrical conductivity, coefficient of thermal expansion at various temperatures, and hardness were measured. The relative density, electrical conductivity, and thermal expansion coefficient of the sintered SiC/Ni composites obtained decreased; hardness increased by increasing the SiC content in the nickel matrix.
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| Date |
2019-06-20T03:23:16Z
2019-06-20T03:23:16Z 2019 |
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| Type |
Article
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| Identifier |
Investigation of the effect of SiC content on the microstructure, physical properties and hardness of SiC/Ni composites / Hanan M. Makled, Mahmudun N. Chowdhury, Ahmed I. Ali, Ibrahim S. Qassem, Walid M. Daoush // Functional Materials. — 2019. — Т. 26, № 1. — С. 92-99. — Бібліогр.: 30 назв. — англ.
1027-5495 DOI:https://doi.org/10.15407/fm26.01.92 http://dspace.nbuv.gov.ua/handle/123456789/157404 |
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| Language |
en
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| Relation |
Functional Materials
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| Publisher |
НТК «Інститут монокристалів» НАН України
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