Article
Materials Science, Ceramics
Shibin Wu, Keru Song, Fengyue Shi, Jianwen Wang, Songyu Hu, Guangdong Zhao
Summary: ZrC-SiC composite ceramics with varying Zr/Si molar ratios were prepared using sol-gel method. The composites were characterized by various techniques including FT-IR, XRD, TGA, TEM, SEM, Raman spectroscopy, and EDS. The results showed the formation of a macromolecular network structure in the composites, with Zr atoms crosslinked with Si in corresponding proportion. After annealing, ZrC powder uniformly covered the surface of SiC ceramics, with high-crystallinity graphite carbon covering the ZrC powder.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Yuyu Zhang, Jia Sun, Lingxiang Guo, Xuemeng Zhang, Dingcong Cui, Qiangang Fu
Summary: In this study, a plasma-sprayed ZrC coating modified by a polymer-derived SiC/TaC nanocomposite was applied on SiC-coated carbon/carbon composites. The results showed that the SiC/TaC modified coating exhibited improved stability and ablation resistance, as well as the formation of a dense protective layer.
Article
Materials Science, Multidisciplinary
Qinchuan He, Xiaoyang Jiao, Yiqun Wang, Xuemin Yin
Summary: Precursor content is crucial for the ablation resistance of CLVD-C/C-SiC-ZrC composites. High-content precursors promote the formation of oxide coating, leading to improved ablation resistance. However, excessive precursor content results in increased porosity and decreased ablation resistance.
Article
Materials Science, Ceramics
Kaijiao Li, Lingjun Guo, Yun Wang, Jinguo Huang
Summary: A novel ZrC preceramic precursor (PZC) was prepared via liquid phase chemical reaction without organic solvent, showing the presence of Zr-O-C bonds and Zr-O bonds. SEM analysis revealed particle aggregation and formation of ZrC ceramic during pyrolysis process.
CERAMICS INTERNATIONAL
(2021)
Article
Polymer Science
Saino Yesudas, K. J. Sreejith, V. Vipin Vijay
Summary: This paper reports the synthesis and characterization of vinylhydridosilsesquioxane (SQVH-12), an organic silsesquioxane with Si vinyl and Si H groups. The high rate of ceramic residue and the presence of functional groups highlight the potential usefulness of SQVH-12 as a filler for vinyl-containing polysiloxanes. Further research on SQVH-12 can find applications in areas such as additive manufacturing, protective coatings, and advanced composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Yuqi Wang, Lingxiang Guo, Yuyu Zhang, Xuemeng Zhang, Hongkang Ou, Jia Sun
Summary: To improve the ablation performance of C/C composite at 3000 degrees C, a ZrC-SiC-Si/SiC-Si double-layered coatings (ZSS/SS) was prepared. The ZSS/SS coating showed the lowest linear ablation rate of 0.53 μm/s in 90 s with a parabolic rate constant Kp (0.053 μm/s^3), attributed to good self-sealing of oxidation derived glassy. However, for long-term ablation, the Kp became worse (0.131) due to dominant mechanical denudation.
Article
Materials Science, Multidisciplinary
Dou Hu, Qiangang Fu, Mingde Tong, Xiaoxuan Li
Summary: This study investigates the improvement of multiple cyclic ablation performance of ablation resistant coating through the design and fabrication of (ZrC-TaC)/(ZrC-SiC) multilayer coating. The results showed that the linear variation rate of the multilayer coating decreased by 75% compared to the monolayer ZrC-TaC coating, which was attributed to the control of low Ta/Zr ratio to increase the temperature resistance of Zr-Ta-O oxide film and the interfacial crack deflection induced by the ZrC-SiC interface layer.
Article
Chemistry, Physical
Hyun-Gu Nam, Tae-Hwan Huh, Myungjae Kim, Jiwoong Kim, Young-Je Kwark
Summary: Magnetoceramics composed of pure alpha-Fe crystals grown in an amorphous silicon carbonitride matrix were prepared using specific precursors. The microstructure of the magnetoceramics can be controlled by the precursor composition, resulting in improved magnetic properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Metallurgy & Metallurgical Engineering
Meng-meng Shao, Zhao-ke Chen, Xin-shuang Wang, Qing-bo Wen, Xiang Xiong
Summary: To enhance the anti-ablation property of C/C composites, ZrC-SiC-MoSi2 coatings with different Zr contents were prepared on C/C-SiC-ZrC ceramic matrix composites. The ablation behavior of the coated composites was studied in an oxyacetylene torch environment with varying oxygen and acetylene fluxes. The results showed that the particle sizes of ZrC and SiC in the coatings decreased and distributed more homogeneously with the increase of Zr content. The ablation mechanisms of the coatings changed from oxidation to oxidation plus evaporation and then to the combination of oxidation, evaporation, and denudation with the increase of oxygen and acetylene fluxes.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2023)
Article
Chemistry, Physical
Chunlei Yan, Yaoqiang Li, Hao Cheng, Zaoming Wu, Fangming Liu, Rongjun Liu
Summary: C-f/SiC and C-f/ZrC-SiC composites fabricated via a novel combined process have lower open porosity but poorer mechanical properties. The degradation of matrix strength caused by large SiC particles and the presence of higher thermal residual stress due to higher processing temperature and larger CTE differences are the main factors influencing the mechanical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Running Wang, Jiaping Zhang, Bing Liu, Jie Fei, Qiangang Fu
Summary: By introducing a tailored SiC-C interphase, the carbon fiber can be effectively protected, improving the mechanical and ablation properties of leading edge shaped C/C-ZrC-SiC composites.
Article
Chemistry, Multidisciplinary
Qiang Gao, Cheng Han, Xiaozhou Wang, Yingde Wang
Summary: In this study, a PZCS precursor with a Zr-C-Si main chain was successfully synthesized by copolymerization of Cp2Zr(ii) active species with (CH3)(2)Si(CH2Cl)(2). The pathways of constructing the Zr-C-Si main chain were proposed, which were different from the conventional understanding of using the Grignard reaction mechanism. The PZCS precursor exhibited high ceramic yield and has important application prospects in the field of ultra-high temperature ceramics.
Article
Materials Science, Ceramics
Keru Song, Shibin Wu, Xuesong Shan, Siyu Huang, Guangdong Zhao, Dongyu Zhao
Summary: A novel ZrC ceramic precursor was prepared by a polymer-derived ceramics method and UV crosslinking. PAN-based CNF-coated ZrC ceramic precursors were synthesized by electrostatic spinning. After high-temperature annealing, these materials were converted to nano-sized ZrC ceramics and ZrC/C fibers with a highly crosslinked network structure.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Mackenzie J. Ridley, Michael J. Lance, Trevor G. Aguirre, Corson L. Cramer
Summary: SiC preforms were infiltrated with polycarbosiloxane preceramic polymer to create low-cost SiC-SixOyCz matrix composites for high temperature application. The effect of specimen annealing conditions on the oxidation resistance was analyzed. Argon-annealed specimens exhibited the highest oxidation resistance due to increased matrix crystallinity and carbon retention. These findings were used to develop strategies for improving the high-temperature properties of SiC-SixOyCz composites.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Qinchuan He, Hejun Li, Qing Tan, Jinhua Lu, Xuemin Yin
Summary: The particle size of ultra-high temperature ceramics (UHTCs) is critical for the ablation behavior of C/C-UHTCs composites. This study focused on the role of ZrC particle size on the ablation resistance of C/C-SiC-ZrC composites. The results showed that ZrC particles with a size of -1 μm produced a broken oxide coating, indicating unsatisfactory ablation resistance. ZrC particles with a size of -3.8 μm could not form a dense oxide coating, leading to oxygen corrosion. ZrC particles with a size of -2.7 μm promoted the formation of a continuous and viscous oxide coating, delaying oxygen diffusion and resisting airflow scouring.
Article
Thermodynamics
Jieguang Huang, Lehua Qi, Jun Luo, Xianghui Hou
Summary: Droplet deposition 3D printing is a potentially useful technique for metal parts fabrication in space, but simulating it on ground under microgravity remains a challenge. Current research focuses on defining the physical mechanisms of gravity on droplet impact and solidification, demonstrating the asymmetric behaviors of spreading, retraction, and solidification shape, and their interaction with gravity.
APPLIED THERMAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Deyu Yang, Ran Tao, Xianghui Hou, Hamdi Torun, Glen McHale, James Martin, YongQing Fu
Summary: The issue of ice accretion poses serious challenges in various industries, with current ice prevention measures being costly and environmentally impactful. A new ice protection strategy based on thin film surface acoustic waves is proposed, which effectively delays ice nucleation and reduces ice adhesion by generating different effects at the ice-structure interface.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Barun Ghosh, Fang Xu, Xianghui Hou
Summary: The study developed PEEK composites reinforced with hBN nanoplatelets, which have lower CTE and significantly improved thermal dissipation capability. The composites exhibit stable thermal conductivity and CTE at high temperatures and excellent electrical insulation properties.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Halar Memon, Davide S. A. De Focatiis, Kwing-So Choi, Xianghui Hou
Summary: The liquid-infused polymeric surfaces with promising icephobicity face challenges in maintaining performance after material damage. Inspired by cetacean skin, glycerol-infused fiber-reinforced polyurethane (GIFRP) coatings have been developed to delay water droplet freezing and reduce ice adhesion under erosion tests. Incorporating fibers in the coatings has proven beneficial for infused-liquid replenishment and slow-releasing capabilities, leading to minimal ice adhesion even after substantial surface damage.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Materials Science, Ceramics
Changqing Liu, Xiaoxiao Yuan, Wanting Wang, Hulin Liu, Chengxin Li, Heng Wu, Xianghui Hou
Summary: This study successfully developed a simple method for in-situ fabrication of SiC nanowires in nanosized ZrB2-ZrC powders, which can serve as a basis for fabricating SiCnw-reinforced ceramic materials with enhanced strengthening effects.
CERAMICS INTERNATIONAL
(2022)
Article
Polymer Science
Mahmut Tas, Umar Gishiwa Musa, Ifty Ahmed, Fang Xu, Christopher Smartt, Xianghui Hou
Summary: This study developed icephobic nanocomposite electrospun membranes for outdoor electronic equipment, providing high electromagnetic shielding efficiency along with superhydrophobic and icephobic performance. Surface modification using fluorinated silane functionalised SiO2 nanoparticles achieved superhydrophobicity and reduced ice adhesion strength. Addition of magnetite nanoparticles showed high magnetic response and electromagnetic shielding efficiency.
Article
Materials Science, Multidisciplinary
Jie Wang, Mengjuan Wu, Xianghui Hou
Summary: This study investigates the wetting behavior and hydrophobic mechanism of 304 stainless steel surface and Ni-Cu-P coatings, showing that the water contact angle change is associated with surface area and surface roughness. The recovery of water repellency is influenced by a time constant related to micro-scale surface deformation or roughness. The research provides a theoretical basis for time-dependent wetting studies.
Article
Polymer Science
Chenxi Hu, Hongnan Zhang, Nigel Neate, Michael Fay, Xianghui Hou, David Grant, Fang Xu
Summary: In this study, graphene oxide-carbon nanotubes nanostructures decorated with nickel nanoparticles were prepared and used to enhance the epoxy resin matrix. The aligned distribution of NiGNT resulted in enhanced anisotropic thermal and electrical conduction performances in the composites. The findings suggest that NiGNT-epoxy composites have great potential in aerospace and automobile materials.
Article
Materials Science, Ceramics
Yuming Chen, Leilei Zhang, Qian Gao, Yeye Liu, Hongchao Sheng, Xianghui Hou, Hejun Li
Summary: In this study, Si3N4 nanowires@pyrolytic carbon core-shell structure (SNs@PyC) were designed and constructed to improve the mechanical and biotribological performances of carbon fiber-carbon-hydroxyapatite composites (CHC). SNs@PyC-CHC was fabricated using a combined method of precursor impregnation-pyrolysis, chemical vapor deposition, pulse electrochemical deposition, and isothermal chemical vapor infiltration. The results showed that SNs@PyC-CHC exhibited significant improvements in flexural strength, compressive strength, shear strength, friction coefficient, and wear rate compared to CHC.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Deyu Yang, Luke Haworth, Prashant Agrawal, Ran Tao, Glen McHale, Hamdi Torun, James Martin, Jingting Luo, Xianghui Hou, YongQing Fu
Summary: This study systematically investigated the accretion and removal of porous rime ice from structural surfaces activated by surface acoustic waves (SAWs). The results showed that the icing and de-icing processes are closely linked with the dynamic interfacial phase and structure changes of rime ice under SAW activation and the acousto-thermally induced localized heating that facilitates ice melting. The interaction of SAWs with the thin water layer formed at the ice/structure interface resulted in significant streaming effects, leading to further damage and melting of ice.
Article
Mechanics
Lei Zhao, Lehua Qi, Jun Luo, Jieguang Huang, Xianghui Hou
Summary: Rapid in situ manufacturing is important in space exploration. Droplet-based printing technology with micrometer accuracy has great potential in space due to its advantages in transportation, customized metal material, and environmental adaptability. This study proposes a new method to evaluate the reliability of ground microgravity simulation, and analyzes the gravity influences on the droplet ejection process through numerical analysis and experimental validation.
Article
Chemistry, Physical
Lina Sun, Leilei Zhang, Xuemin Yin, Yeye Liu, Yao Guo, Hongchao Sheng, Xianghui Hou
Summary: Carbon-matrix composites reinforced by Si3N4 nano-wires@pyrolytic carbon nanolayers (Si3N4nws@PyCnls) coupled with hydroxyapatite nanosheets show improved mechanical strength and frictional properties, making them suitable for aerospace and military applications. This study provides a co-reinforcement strategy for effective improvement of mechanical and frictional properties of carbon matrix composites.
JOURNAL OF MATERIOMICS
(2023)
Editorial Material
Chemistry, Physical
Jie Wang, Xianghui Hou
Review
Chemistry, Physical
Halar Memon, Jie Wang, Xianghui Hou
Summary: Ice protection techniques in aerospace and wind energy applications have limitations in terms of cost and convenience. This review focuses on the use of passive icephobic coatings, specifically examining the role of surface roughness in anti-icing and de-icing performance. The interdependence of surface roughness with other icephobicity strategies, such as superhydrophobicity and elastomeric surfaces, is discussed. Furthermore, the sensitivity of de-icing evaluation methods to surface roughness is explored.
Proceedings Paper
Materials Science, Multidisciplinary
Chenxi Hu, David Grant, Xianghui Hou, Fang Xu
Summary: A novel three-dimensional graphene oxide and carbon nanotubes nanostructure with high surface area and adsorption capacity was prepared, showing great potential for removing organic dyes in wastewater treatment.
MATERIALS TODAY-PROCEEDINGS
(2021)
