Zr–Cu alloy filler metal for brazing SiC ceramic

Zhou, Bofang; Feng, Keqin

doi:10.1039/c8ra05480k

Cited by 27 publications

(17 citation statements)

References 19 publications

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“…The results of XRD analysis are shown in Figure 3. It can be found that new phases ZrC and Zr2Si are formed at different temperatures, which are in accordance with the results of thermodynamic calculation and analysis [18]. At the same time, the amount of reaction products increases with the increase of the brazing temperature.…”

Section: Brazing Temperaturesupporting

confidence: 86%

“…The equilibrium wetting angle of Zr-Cu filler metal on the SiC ceramic surface by wetting experiment is maintained at about 5° with the prolongation of holding time. It is shown that the filler metal can well wet SiC ceramic, and the interface reaction layer is growing [18]. The elements Zr and Si diffuse Figure 6b, the fracture of the brazed joint is brittle fracture, and the fracture position mainly occurs in the interface reaction layer, with a certain number of SiC particles on the fracture surface.…”

Section: Holding Timementioning

confidence: 98%

“…Due to the influence of the related properties of the products of the interface reaction layer and the brazing parameters, as shown in Figure 6b, the fracture of the brazed joint is brittle fracture, and the fracture position mainly occurs in the interface reaction layer, with a certain number of SiC particles on the fracture surface. When the brazing temperature reaches 1300 • C, the grain growth of Zr-Cu filler metal is serious, the interface reaction layer is thick, and the residual stress of the joint and reaction layer grain are larger [18], which is the weakest area of the joint. As shown in Figure 6c, the joint fracture is brittle fracture, and the fracture location occurs at the interface of SiC ceramic and filler metal.…”

Section: Brazing Temperaturementioning

confidence: 99%

Section: Holding Timementioning

confidence: 99%

“…; however, the above brazed joint cannot meet the requirements of high-temperature mechanical properties and a small thermal neutron absorption cross-section nuclear performance at the same 2 of 9 time. Our research group innovatively proposed Zr-Cu alloy for brazing SiC ceramic [18,19]. Zr-Cu alloy, as a new type of the active filler metal, has not been studied in the relevant journals.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Brazing Parameters on the Microstructure and Properties of SiC Ceramic Joint with Zr-Cu Filler Metal

et al. 2020

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The microstructure and mechanical properties of brazing SiC ceramic with Zr-Cu filler metal under different brazing parameters (brazing temperature, holding time) were investigated. The phase of the joint reaction interface between Zr-Cu filler metal and SiC ceramic was characterized by XRD, the microstructure and fracture morphology of the brazing SiC ceramic joint were analyzed by SEM with EDS, and the strength of the joint was evaluated by compression shear test. The results show that the brazing join between SiC ceramic and Zr-Cu filler metal can be realized at the brazing temperature of 1100 °C~1300 °C, and the main products of interface reaction are ZrC and Zr2Si. The shear strength of the joint increases with the brazing temperature, and reaches the highest at 1200 °C. The thickness of interface reaction layer increases with the increase of holding time at brazing temperature of 1200 °C. Thickness of the interface reaction layer is 2.9 μm when the joint is holding for 20 min, and the maximum shear strength of the corresponding brazed SiC ceramic joint is 57 MPa.

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Section: Brazing Temperaturesupporting

confidence: 86%

Section: Holding Timementioning

confidence: 98%

Section: Brazing Temperaturementioning

confidence: 99%

Section: Holding Timementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Brazing Parameters on the Microstructure and Properties of SiC Ceramic Joint with Zr-Cu Filler Metal

et al. 2020

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Comparison of neutronic aspects in high‐temperature gas‐cooled reactor using ZrC and SiC Triso particle with 50 and 100 MWt power

Miftasani

Su’ud

Irwanto

et al. 2021

Intl J of Energy Research

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Summary The use of zirconium carbide (ZrC) as a substitute for silicon carbide (SiC) has been proposed to improve the performance of coated particles for high‐temperature gas‐cooled reactor (HTGR) fuel. Irradiation test on ZrC has proved that it has excellent characteristics for HTGR fuel compared with SiC, such as fission product retention capabilities and better resistance on fission product corrosion. Neutronic analysis on 30 MWt HTGR using ZrC and SiC has been performed in many previous studies. The research presented in this paper was conducted as a further continuation of the aforementioned studies. The present study was directed to analyze tristructural isotropic (TRISO)‐coated particles with ZrC as a substitute for the SiC layer on an HTGR with different power rates. Here, we used high‐temperature test reactor design, an experimental scale prismatic HTGR built and operated in Japan. The power was varied at the range of 50‐100 MWt, while the reactor geometry was modified by applying an additional fuel layer in the axial and radial directions. Neutronic analysis of the reactor was investigated by calculating the k‐eff, k‐inf, power peaking factor, burn‐up level, neutron spectrum, and Doppler effect using ZrC and SiC layers for TRISO‐coated fuel particles. The result shows the coated fuel particle using the ZrC layer has the same performance as SiC with an insignificant difference in the values on neutronic aspects calculation. Neutronic calculations are performed using the SRAC code with the Japanese Evaluated Nuclear Data Library 4.0 nuclear data library.

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Study on Brazing of SiC Ceramics with Zr-Cu-Nb Filler Metal

Zhang¹,

Cai²,

Liu³

et al. 2023

J. of Materi Eng and Perform

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Zr–Cu alloy filler metal for brazing SiC ceramic

Abstract: The Zr–Cu filler metal is mainly used for the joining of SiC ceramic as a nuclear fuel cladding material.

Cited by 27 publications

References 19 publications

Effect of Brazing Parameters on the Microstructure and Properties of SiC Ceramic Joint with Zr-Cu Filler Metal

Effect of Brazing Parameters on the Microstructure and Properties of SiC Ceramic Joint with Zr-Cu Filler Metal

Comparison of neutronic aspects in high‐temperature gas‐cooled reactor using ZrC and SiC Triso particle with 50 and 100 MWt power

Study on Brazing of SiC Ceramics with Zr-Cu-Nb Filler Metal

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