In-situ synthesis of ultra-fine ZrB2–ZrC–SiC nanopowders by sol-gel method

Liu, Changqing; Chang, Xiaojing; Wu, Yuanting; Xu, Li; Xue, Yufei; Wang, Xiufeng; Hou, Xianghui

doi:10.1016/j.ceramint.2019.11.202

Cited by 20 publications

(4 citation statements)

References 44 publications

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“…Cutting parameters for the AA2618/SiC composite were adjusted in [39] to reduce power consumption and maximize tool life. While machining the AA 2618/SiC nanocomposite, Liu et al and He et al [40,41] used RSM as a tool. SiC was used as a reinforcing agent in the composite.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Parameters of Zirconium Carbide and Rice Husk Ash Reinforced with AA 2618 Composites

Mahesha

Suprabha

Thenmozhi

et al. 2022

Advances in Materials Science and Engineering

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Stir casting was utilized to generate the composites. The AA 2618–10wt% zirconium carbide 10wt% rice husk ash hybrid composite had the highest hardness value. In comparison to pure AA 2618, it had a 72% increase. The rule of mixture was used to compute theoretical density, whereas the Archimedes rule was utilized to evaluate real density. For AA 2618, AA 2618/zirconium carbide, and rice husk ash hybrid composites, simple carbide inserts were used for turning. Surface roughness, metal removal rate, and tool wear were among the numerous responses examined. RSM was utilized to analyze and optimize the test outcomes. Feed rate was the most critical issue for surface roughness and material removal rate. Tool wear was shown to be most strongly controlled by tool speed, whereas metal removal rate was found to be least significantly influenced by the weight percent of reinforcement.

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Section: Introductionmentioning

confidence: 99%

Optimizing the Parameters of Zirconium Carbide and Rice Husk Ash Reinforced with AA 2618 Composites

Mahesha

Suprabha

Thenmozhi

et al. 2022

Advances in Materials Science and Engineering

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“…Therefore, homogeneously mixed and non-agglomerated SiC and ZrC powder raw materials need to be synthesised to prepare SiC-ZrC composites with excellent properties. At present, the synthesis methods of SiC-ZrC composite powders mainly include the carbothermal reduction method [13][14][15][16], sol-gel method [17][18][19], and liquid precursor method [4,[20][21]. In the current industrial production, the carbothermal reduction method is used as the main method for synthesising various carbide powders due to its simple synthesis process, simple equipment needed, low preparation cost, and stable product quality [22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Liu et al [14] prepared ZrC-SiC composite powders through a microwave carbothermal reduction method using zircon and activated carbon as the raw materials and investigated the effects of the heating temperature, embedded powders, and heating methods on the synthesis of the ZrC-SiC composite powders. Liu et al [15] prepared ZrB 2 --ZrC-SiC nanopowders with a uniform phase distribution from cost-effective ZrOCl 2 •8H 2 O. Zeng et al [16] successfully synthesised ZrC-SiC composite powders by a combination of the sol-gel technology and carbothermal reduction using zirconium oxychloride octahydrate as the zirconium source, tetraethoxysilane as the silicon source, and phenolic resin as the carbon source.…”

Section: Introductionmentioning

confidence: 99%

SYNTHESIS AND MECHANISM OF SiC-ZrC COMPOSITE POWDERS BY CARBOTHERMAL REDUCTION METHOD

Cao¹

2022

Ceramics - Silikaty

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SiC-ZrC composite powders were synthesised by the carbothermal reduction method using starch as the carbon source, zirconium dioxide as the zirconium source, and silica sol as the silicon source. The effects of the reaction temperature on the phase composition and microstructure of the SiC-ZrC composite powders were investigated. The reaction process was thermodynamically analysed and calculated, and the synthesis mechanism of the SiC-ZrC composite powder was analysed. The synthesised powder samples were characterised and analysed by X-ray diffraction, scanning electron microscopy, and other testing methods. The results show that the optimum reaction condition for the synthesis of SiC-ZrC composite powders is at 1550 °C-1600 °C for 1.5 h. A high temperature and a low pressure are beneficial in conducting the synthesis reaction. The SiC-ZrC composite powders synthesised by calcining at 1550 °C and holding for 1.5 h are mainly composed of a certain amount of whiskers, spherical particles, floc particles, and other structures. Moreover, their grain size is small (100-200 nm). The powder samples synthesised at 1600 °C produced a larger number of whiskers. The length of the whiskers was mostly 10 μm, the arrangement was complex and irregular, and a diverse microstructure was formed.

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“…So far, ZrB 2 -ZrO 2 (Zirconium diboride-zirconium dioxide) [10][11][12], ZrB 2 -ZrSi 2 (Zirconium diboride-zirconium disilicite) [13][14][15][16][17][18][19][20][21], and ZrB 2 -ZrC (Zirconium diboride-zirconium carbide) [22,23] binary systems were obtained using different starting compositions. Some of them resulted in ternary compositions such as ZrSi 2 -MoSi 2 -ZrB 2 [24], ZrB 2 -ZrC-SiC [25,26], ZrB 2 -ZrSi 2 -SiC [27]. Having assessed the binary (e.g.…”

Section: Introductionmentioning

confidence: 99%

Co-synthesis of zirconium boride/silicide/oxide composite powders by magnesiothermic reduction

DÖNDAŞ>

2022

Journal of Boron

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This study uses a magnesiothermic reduction method to investigate the co-synthesis of zirconium boride, silicides, and oxide powder composites using ZrO2, B2O3, Si, and Mg initial powders. The synthesis of high-temperature ceramic powders is examined through milling durations, reduction temperatures, and excess magnesium addition. Thermochemical analysis of probable reaction products was conducted by the Factsage software. According to the results, the thermochemical predictions and resultant powder phases showed good coherency. High-energy milling has a significant effect on the formation of the zirconium boride phase after annealing. However, extended milling time and higher annealing temperature have no significant effects on the composition of the constituted composite powders according to the X-ray diffraction results. An annealing temperature of 600 ºC was enough to obtain ZrB2-based ceramic composite powders. In the final powder phases, the excess magnesium addition to the stoichiometric displays an important feature. After the milling, annealing, and leaching procedure, the stoichiometric powder composition comprises ZrB2, ZrSi, ZrSi2, ZrO2, and MgSiO2, and excess Mg added powders have the ZrB2, ZrSi, ZrSi2, ZrO2 phases in their structure. Scanning electron microscopy analysis was utilized to observe the morphologies of the powders throughout each step of the synthesis procedure and revealed the finely structured morphology of synthesized powders.

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In-situ synthesis of ultra-fine ZrB2–ZrC–SiC nanopowders by sol-gel method

Cited by 20 publications

References 44 publications

Optimizing the Parameters of Zirconium Carbide and Rice Husk Ash Reinforced with AA 2618 Composites

Optimizing the Parameters of Zirconium Carbide and Rice Husk Ash Reinforced with AA 2618 Composites

SYNTHESIS AND MECHANISM OF SiC-ZrC COMPOSITE POWDERS BY CARBOTHERMAL REDUCTION METHOD

Co-synthesis of zirconium boride/silicide/oxide composite powders by magnesiothermic reduction

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