CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Fu-Chen Liu,Bo-Wen Chen,De-Wei Ni,Fei-Yan Cai,Xue-Gang Zou,Chun-Jing Liao,Hong-Da Wang,Yu-Sheng Ding,Shao-Ming Dong
Long-term ablation behavior of Al 4 SiC 4 -YB 4 modified C f /ZrB 2 -SiC composites was characterized by air plasma torch at 2600 °C for 300 s. The phase composition and the microstructure evolution of the composites were investigated. The addition of YB 4 promotes the formation of nano t- Zr 0.92 Y 0.08 O 1.96 crystals, decreasing the phase transition stress in the oxide layer and reducing the volatilization of the glassy phase . However, the addition of Al 4 SiC 4 reduces the melting point of Zr-based oxides and the viscosity of the oxide layer. Therefore, the air plasma torch blows the oxide layer away, leading to the increase of linear recession rate.
研究领域:
材料科学
·
航空航天工程
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产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2020
·
IF 4.495
Qinghua Feng,Panpan Lin,Tiesong Lin,Peng He,Yan Liu,Weimin Long,Jian Li
A novel design of a multi-layered joint architecture, characterized by the controllable spatial distribution of ceramic reinforcements, was obtained, when brazing ZrB 2 -SiC ceramics and Ti-6Al-4 V reinforced by TiB whiskers with AgCu filler. To induce SiC reinforcements to cluster together, within the center of the filler and especially away from the ZrB 2 -SiC, SiC was added into joint, in the form of a SiC interlayer featuring a 3D-bridged network structure with continuous micro-channels infiltrated by capillary force by liquid filler during brazing. Different SiC particles were connected together, by micro-bridges being not destroyed during brazing. The layer rich in SiC could reduce thermal expansion mismatch between different substrates, the AgCu next to the ZrB 2 -SiC could relax the strain energy by high plastic deformation. Compared to joint brazed with single AgCu, joint strain energy decreased from 10.8 × 10 −6 J to 8.6 × 10 −6 J, accordingly joint shear strength increased from ∼5.4 MPa to ∼41.2 MPa.
研究领域:
材料科学
·
焊接工程
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·Vol. 61
·期 23
·16347-16362
·
IF 4.4
Yuan Yong,Qi Wenjuan,Xu Junjie,Ge Chuntao,Jin Weiliang,Zhang Jun,Xiao Saijun
To address the high-temperature oxidation of carbon/carbon (C/C) composites, this study employed a novel molten salt electrophoretic deposition (MS-EPD) technique to fabricate a zirconium diboride (ZrB 2 ) anti-oxidation coating. Using ZrB 2 nanoparticles synthesized in situ in molten salt as a precursor, a uniform and dense coating with a thickness of approximately 50 μm and good adhesion to the substrate was obtained at an optimized deposition voltage of 1.0 V. The coating exhibited excellent mechanical properties, with its nano-hardness and elastic modulus reaching as high as 35.8 and 510 GPa, respectively, and a critical adhesion load with the substrate of 10.8 N. This technique demonstrated high efficiency, with an average deposition rate of up to 0.865 μm/min. High-temperature oxidation tests revealed that the coating forms a ZrO 2 –B 2 O 3 composite oxide layer above 973 K, effectively blocking oxygen ingress. The coating continued to provide effective protection for the substrate after isothermal oxidation at 1173 K in an air atmosphere for 5 h. This research confirms that MS-EPD is an efficient, feasible, and promising technique for preparing high-performance anti-oxidation coatings on C/C composites.
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DOI
高影响因子
CORROSION SCIENCE
·
2025
·
IF 8.5
Fu-Chen Liu,Bo-Wen Chen,De-Wei Ni,Qian Wang,Fei-Yan Cai,Chun-Jing Liao,Hong-Da Wang,Yu-Sheng Ding,Shao-Ming Dong
In this work, YB 4 -CrSi 2 surface-modified C f /ZrB 2 -SiC composites were fabricated by a slurry coating method. The cyclic ablation resistance of the composites was studied at 2600 °C for 300 s using an air plasma test. The ablation mechanisms of the composites were discussed. The Y 3+ can prevent the phase transition of the ZrO 2 and increase the structural stability of the oxide layer. But the oxide layer cannot prevent the inward O penetration resulting from the forming of Zr 0.9 Y 0.1 O 1.95 grains with abundant oxygen vacancy. After the modification of CrSi 2 , the size of Zr 0.9 Y 0.1 O 1.95 grains can be reduced to nano scale. The adequate SiO 2 glassy phase with the uniform distribution of the Zr 0.9 Y 0.1 O 1.95 nano grains can prevent the O penetration effectively and reduce the mass recession rate of the composites.
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2020
·Vol. 47
·期 7
·9504-9512
·
IF 3.83
Jing Hu,Jianliang Xie,Xianyu Jiang,Qi Li,Xin Wang,Li Zhang,Liangjun Yin,Longjiang Deng
ZrB 2 -based ceramics are important materials for a variety of applications. However, their low oxidation resistance above 1000 °C limits their high-temperature applications. Herein, we report the utilization of LaF 3 as a unique oxidation retardant to significantly improve the oxidation resistance of ZrB 2 -10 vol%LaF 3 ceramics in the temperature range of 1000–1400 °C. Moreover, we present the densification of the oxide layer via oxidation-induced self-healing mechanism of ZrB 2 –LaF 3 ceramics for the first time. The incorporation of LaF 3 into ZrB 2 matrix was achieved by using spark plasma sintering at 1800 °C. Furthermore, the oxidation behavior of pure ZrB 2 and ZrB 2 -10 vol%LaF 3 ceramics was systematically investigated by analyzing the thicknesses of oxide layers and the weight gains. Both the thicknesses and weight gain were significantly reduced after adding 10 vol. % LaF 3 , which can be mainly attributed to the synergistic influence of pore filling and healing by LaB 3 O 6 /LaBO 3 phases and corresponding volumetric expansions.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.3
Cheng Su,Bingzhu Wang,Huan Guo,Jixiang Dai,Jianjun Sha
Reactive hot pressing technology facilitates the rapid densification and sintering of UHTC-based composites, presenting significant potential for applications in the aerospace field. However, challenges persist in achieving uniform dispersion of fibers and lowering the densification temperature required for optimal consolidation. In this work, the ZrSi 2 , B 4 C and active carbon were used as the raw materials, and the 3D C f /ZrB 2 -SiC composite with an open porosity of 0.91% were successfully fabricated through the slurry impregnation-drying cycles followed by a reactive hot pressing at 1800 °C. The microstructure evolution and high-temperature mechanical properties were also systematically investigated. The microstructure analysis found that the in situ reaction of ZrSi 2 , B 4 C and active carbon during sintering led to the formation of ZrB 2 -SiC ceramic matrix and effectively promoted densification. The 3D C f /ZrB 2 -SiC composite exhibited an average flexural strength of 232.9 MPa at RT, retaining a value of 112.1 MPa at 1200 °C.
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DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2016
·
IF 2.933
Xiaowu Chen,Shaoming Dong,Yanmei Kan,Haijun Zhou,Jianbao Hu,Dengke Wang
Three-dimensional (3D) C f /SiC-ZrC-ZrB 2 composites were successfully fabricated by sol-gel process combined with reactive melt infiltration (RMI) method. With H 3 BO 3 and PVA as raw materials for gel precursor, a porous C-B 4 C matrix was first introduced into the 3D carbon fiber preform by impregnation of the gel precursor, followed by heat-treatments of pyrolysis and carbothermal processes at 1500 °C in Ar atmosphere . Then molten ZrSi 2 alloys were infiltrated into the 3D C f /C-B 4 C preform to obtain 3D C f /SiC-ZrC-ZrB 2 composites. Based on thermodynamic analysis , the formation mechanism of SiC-ZrC-ZrB 2 matrix was revealed. Oxidation resistance and ablation resistance properties of the fabricated 3D C f /SiC-ZrC-ZrB 2 composites were tested using a muffle furnace and a plasma wind tunnel equipment, respectively. The flexural strength of the as prepared composites and its strength retention after oxidation were evaluated. It is revealed that the 3D C f /SiC-ZrC-ZrB 2 composites showed superior flexural strength , good oxidation resistance and excellent anti-ablation properties.
研究领域:
材料科学
·
陶瓷基复合材料
·
高温材料
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航空航天工程
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DOI
高影响因子
MATERIALS & DESIGN
·
2016
·
IF 3.997
Shugang Chen,Yanzi Gou,Hao Wang,Ke Jian,Jun Wang
In order to prepare ZrC-ZrB 2 nanocomposite ceramics with high temperature stability from single-source precursors, the reactions of ZrCl 4 , allyl amine, allyl-MgCl and borane were employed to synthesize suitable precursors. The meliorated ZrNCB precursor had favorable solubility and higher ceramic yield (68.8 wt%), which was then transformed to ZrC-ZrB 2 ceramics at different temperatures. The main phase of the ceramics was amorphous at 1000 °C. As the temperature increased, the amorphous phases started to crystallize, resulting in the appearance of ZrC and ZrB 2 peaks. The content of ZrC and ZrB 2 phases was relatively high in the nanocomposite ceramics at 1600 °C (over 80 wt%). The ZrC-ZrB 2 nanocomposite ceramics showed good high temperature stability up to 2000 °C. Oxidation test indicated that an oxide layer was formed on the ceramic surface at 1700 °C under air to prevent further oxidation of the ceramics. With excellent high temperature and oxidation resistances , the ZrC-ZrB 2 nanocomposite ceramics have potential application for advanced rocket engines and nuclear industry.
研究领域:
材料科学
·
陶瓷
·
高温材料
·
纳米复合材料
·
航空航天工程
✓ 已验证
DOI
高影响因子
CARBON
·
2016
·
IF 6.198
Baosheng Xu,Shanbao Zhou,Changqing Hong,Jiecai Han,Xinghong Zhang
Carbon-bonded carbon fiber (CBCF) composites consist of chopped carbon fibers network by vitreous carbon at the intersections with high porosity, low thermal conductivity and high-temperature resistance. To further enhance mechanical properties of CBCF composites, nanostructured modification can inspire the creation of CBCF composites with tunable mechanical properties. Here, we report an self-grown strategy to prepare carbon nanotubes (CNTs) and ZrB 2 -modified CBCF composites with a green and single-step process without any foreign gases. The CNTs-ZrB 2 was directly self-grown in CBCF matrix from zirconium (Zr) and boron (B)-contained polymeric precursors during thermal pyrolysis . Results showed that the CNTs are uniformly dispersed in the composites with several hundred micrometers length. The CNTs play a significant role on improving mechanical properties of CBCF composites by pulling-out and bridging effect compared with CBCF composites without CNTs.
研究领域:
材料科学
·
纳米复合材料
·
机械工程
·
碳材料
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Lingxi Qu,Wanying Zhang,Guangdong Zhao,Dongyu Zhao
Polyacrylonitrile (PAN), a kind of multi-purpose man-made polymer material, has been widely used in various products, including carbon fiber precursor fiber manufacturing. Organic/inorganic nanocomposites can provide precursor material with unique properties due to optimal structural design. Herein, PAN based carbon nanofiber (CNF) coated zirconium borate (ZrB 2 ) particles fiber film was prepared via electrostatic spinning strategy. Crosslinking network between carbon atoms formed at 280 °C due to long chain PAN molecules, which underwent pyrolysis at 800–1200 °C. Scanning electron microscope analysis showed that ductile CNF/ZrB 2 hybrid material with entanglement structure was successfully fabricated. Phase composition of the materials was analyzed by X-ray diffractometer, Fourier transform infrared spectroscopy , X-ray photoelectron spectroscopy, and Raman spectroscopy , which confirmed the presence of carbon atoms in the materials. Entanglement structure between CNFs and ZrB 2 enhanced tensile performance of nanohybrid film, in which CNF film with 25% ZrB 2 content exhibited optimal mechanical properties . The design of nanohybrid structure provides facile and universal approach for exploration of organic/inorganic nanocomposites with controlled structures and excellent mechanical properties .
研究领域:
材料科学
·
纳米技术
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Peipei Wang,Guozheng Lv,Xiang Ji,Sheng Zhang,Yuhang Bai,Huan Luo,Yuhao Wu,Xing Zhao,Zhaoqi Hou,Peizhong Feng,Xuanru Ren
To reduce the oxidation damage during the initial active oxidation stage of ZrB 2 -SiC coating, this paper employed a slurry-brushing method to prepare a self-healing Zr-Si-B-O biomimetic glass film on the surface of the ZrB 2 -SiC coating. Furthermore, the oxidation resistance behavior of biomimetic glass films with varying ZrO 2 contents was investigated. Experimental results indicate that the Zr-Si-B-O biomimetic glass film can significantly reduce the oxidation weight gain of ZrB 2 -SiC coating. The biomimetic glass film sample with 70 wt% ZrO 2 exhibits the best oxidation protection effect. After oxidation treatment in the temperature range of 600-1600 °C, the weight gain is only 0.081 × 10 −2 g cm −2 , which is 95.35% lower than that of the sample without the biomimetic glass film; after oxidation at 1700 °C, the final protection efficiency and average carbon loss rate reach the optimal values of 99.97% and 0.34 × 10 −6 g cm −2 s −1 , respectively, and the average oxygen permeability is only 0.35%. The presence of Zr-Si-B-O biomimetic glass film can significantly reduce the oxidation activity and improve the oxidation resistance of the coating. This is attributed to the pre-introduction of a flowable and self-healing glass on the coating surface, which prevented the intense oxidation of the coating at the initial stage.
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产品关联
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2025
·
IF 3.8
Yingjun Liu,Yuanzhe Fu,Yufei Zu,Yang Zhang,Hongfeng Dong,Wenhu Li,Taotao Ai,Jianjun Sha
The relationship between the interfacial bonding properties and the mechanical properties of carbon fiber reinforced ZrB 2 –ZrC–SiC composites (C f /ZrB 2 –ZrC–SiC) is currently under investigation. In this study, C f /ZrB 2 –ZrC–SiC composites with varying fiber–matrix interfacial bonding properties were prepared using slurry infiltration and in-situ reactive hot pressing. Polydopamine-derived carbon with different thicknesses was employed as the interphase to create various interfacial bonding properties, where interfacial bonding properties were evaluated using the single-fiber push-out method. Results indicated that a uniform and dense ZrB 2 –ZrC–SiC matrix was constructed, and low-porosity composites without fiber degradation were obtained. For composites with a higher interfacial shear strength (ISS) of 342 MPa, flexural strength and fracture toughness were 209 MPa and 7.5 MPa·m 1/2 , respectively. For composites with a lower ISS of 64 MPa, flexural strength and fracture toughness increased by 41% and 13%, with showing non-brittle behavior and work of fracture up to 10 kJ·m 2 . By combining analyses of thermal expansion behavior, residual thermal stresses, and thermal shock properties at ultrahigh temperatures, thermal mismatch and thermal damage can be minimized through the modulation of ISS. This approach is beneficial for optimizing the mechanical properties of fiber-reinforced ceramic composites.
研究领域:
材料科学
·
力学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）