Effect of ZrB2 Dominate with SiC Particles on the Ablation and Mechanical Properties of Carbon/Novolac-Epoxy (EPN1179) Composite at 3000 C°

IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL
Silicon Pub Date : 2024-12-18 DOI:10.1007/s12633-024-03207-1
Mehdi Pour Jafari Kasmaei, Farzad Amiri, Mohammad Hossein Alaei
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引用次数: 0

Abstract

In this study, the impact of introducing ZrB2/SiC micro-particles (SiC dominated) with different percentages on the ablation (by means of oxyacetylene test at above 3000 C°) and flexural properties (by three-point bending test) of novolac-epoxy resin was thoroughly investigated. For this reason, 4 samples consisting of Z5S5: 50% ZrB2 and 50% SiC, Z4S6: 40% ZrB2 and 60% SiC, Z3S7: 30% ZrB2 and 70% SiC, Z2S8: 20% ZrB2 and 80% SiC particles within the novolac-epoxy 1179 matrix were manufactured using the hot press and the mechanical and ablative properties were compared with the pure resin from the backside temperature, weight loss, bending characteristics, and SEM imaging of the ablated regions point of view. The results showed the positive effect of SiC and ZrB2 additives in reducing the backside sample temperatures up to 63.5% and enhancing bending strength by up to 7% in the 60% SiC and 40% ZrB2 (Z4S6) sample. In the Z5S5 and Z4S6 samples, the mass ablation rate was improved by 52% and 30.8% respectively. The SEM, EDS, and XRD examinations revealed the formation of essential phases such as SiO2, ZrO2, and ZrSiO4 in the samples following oxyacetylene test.

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来源期刊
Silicon
Silicon CHEMISTRY, PHYSICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
5.90
自引率
20.60%
发文量
685
审稿时长
>12 weeks
期刊介绍: The journal Silicon is intended to serve all those involved in studying the role of silicon as an enabling element in materials science. There are no restrictions on disciplinary boundaries provided the focus is on silicon-based materials or adds significantly to the understanding of such materials. Accordingly, such contributions are welcome in the areas of inorganic and organic chemistry, physics, biology, engineering, nanoscience, environmental science, electronics and optoelectronics, and modeling and theory. Relevant silicon-based materials include, but are not limited to, semiconductors, polymers, composites, ceramics, glasses, coatings, resins, composites, small molecules, and thin films.
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