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Combustion synthesi...
Combustion synthesis of NbC/ZrO2 composites : Influence of Cr additives on the microstructure and mechanical properties
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- Zaki, Zaki I. (författare)
- Chemistry Department, College of Science, Taif University, Taif, Saudi Arabia
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- Al-qahtani, Mohsen (författare)
- Chemistry Department, College of Science, Taif University, Taif, Saudi Arabia
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- Alotaibi, Saad H. (författare)
- Department of Chemistry, Turabah University College, Taif University, Taif, Saudi Arabia
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- El-Sadek, Mohamed H. (författare)
- Central Metallurgical Research and Development Institute (CMRDI), Cairo, Egypt
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- Ahmed, Hesham (författare)
- Luleå tekniska universitet,Mineralteknik och metallurgi
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- Ahmed, Yasser M. Z. (författare)
- Central Metallurgical Research and Development Institute (CMRDI), Cairo, Egypt
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(creator_code:org_t)
- 2021-06-16
- 2021
- Engelska.
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Ingår i: International Journal of Applied Ceramic Technology. - : John Wiley & Sons. - 1546-542X .- 1744-7402. ; 18:5, s. 1502-1509
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Composites of NbC/ZrO2 reinforced with different weight ratios of Cr metal were prepared by dynamic compaction combustion from a blend of Nb2O5-Zr-Cr powders. Factors controlling the synthesis process, the microstructure and the mechanical properties of the samples, such as Cr wt% and the compression loads were studied. The samples were characterized by XRD, SEM, porosity and hardness measurements. The porosity value of sample with no additives was high and reached 31.6 vol%. A sudden decrease in the sample porosity to 2.4 vol % was noticed for sample containing 3.0 wt% of Cr. A high density sample with less than 2.0 vol % porosity and a maximum hardness of 1038 HV was produced using 5.0 wt% Cr under 300 MPa compression load. Detailed thermodynamic calculations for the effect of Cr additives on the physico-chemical properties of the system were introduced.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Nyckelord
- Carbides
- ceramic-metal system
- Combustion Synthesis
- microstructure
- Process Metallurgy
- Processmetallurgi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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