ADVANCED ENGINEERING MATERIALS
·
2021
·Vol. 23
·期 10
·2100347
·
IF 3.862
Jialu Zhang,Hao Xu,Jie Guo,Yingying Zhang,Tianchi Chen
The aerospace industry has extremely strict requirements for metal materials, especially the stability of the material at a low temperature and in harsh environment. Herein, superhydrophobic anti-icing aluminum sheets are fabricated with traditional hydrothermal reaction and modified by (heptadecafluoro-1,1,2,2-tetradecyl) triethoxysilane (AC-FAS). Field-Emission Scanning Electron Microscope (SEM), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) are used to analyze the surface morphology and chemical compositions. The satisfactory properties of superhydrophobicity and anti-icing result from its dense microcosmic array structure and its low surface energy. The prepared superhydrophobic aluminum surface can realize wettability alteration, in which the contact angle increases from 118° on the original aluminum sheets to 155° with a rolling angle of 10°. In addition, the prepared superhydrophobic surface has anti-icing and self-cleaning ability. According to the aforementioned results, it is believed that the superhydrophobic aluminum sheets can be an excellent candidate in the aerospace field.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
ACS Applied Nano Materials
·
2021
·
IF 5.097
Shixian Xiong,Yue Yang,Sizhao Zhang,Yunyun Xiao,Hui Ji,Zhouyuan Yang,Feng Ding
Phenolic-based aerogel composites possess particular characteristics, such as low thermal conductivity, light weight, and superior ablative properties, in near-space vehicles. However, their machinability and flammability require further improvement, hampering their application for high-performance thermal protection systems in the aerospace field. Here, we prepare nanoporous polybenzoxazine (PBO) aerogels with outstanding thermally insulating and self-extinguishing properties by an effective-cost ambient pressure drying (APD) approach rather than a conventional high-pressure supercritical drying pattern. The PBO aerogels are prepared by adopting different exchange solvents of tert-butyl alcohol, ethanol, and n-hexane. The results obtained indicate that PBO aerogels (with n-hexane as the exchange solvent) by APD have an optimal three-dimensional nanoporous network structure, a pore size distribution in the range 20–140 nm, an obvious self-extinguishing property (extinguished itself instantly despite exposure to a 1200 °C flame), superior thermal insulation (the cold surface temperature of the sample reached only 36.4 °C after 400 s despite its opposite surface existing at a 65.8 °C atmosphere), and excellent machinable properties (easy-to-form special-shaped sample). PBO aerogels are a great potential candidate material system for thermal protection systems in aerospace applications in the future.
研究领域:
材料科学
·
航天工程
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 46
·2207239
·
IF 19.924
Yang Li,Zhequn Huang,Yafen Xu,Heng Zhang,Qixiang Wang,Huaxu Qiao,Wen Shang,Tao Deng,Kehang Cui
Broadband, omnidirectional light absorption in the infrared range is critical for emerging aerospace and ground applications, such as machine vision, autonomous vehicle technology, and aerospace telescope. Broadband absorbers (BBAs) need to possess strong absorption through thin structures for high signal-to-noise ratios, as well as manufacturing scalability and service reliability in harsh environment for practical applications. Such requirements rule out many known absorbing materials such as carbon nanotubes that are intrinsically lossy and fragile. Achieving strong light-matter interaction in the mid- and long-wavelength infrared ranges has been extremely challenging despite long-standing research efforts. Here, an aerospace-grade, ≈2.0 µm-thick hierarchical coral-structured titanium nitride (coral-TiN) plasmonic metamaterial is experimentally realized with over 90% omnidirectional absorption across the visible to the long-wavelength infrared range (0.25–25 µm) using a scalable fabrication method. The broadband optical control of the coral-TiN BBA is achieved by the superposition of the hybridized plasmonic mode in the visible and near-infrared, the cavity mode in the short-wavelength infrared as well as the propagating surface plasmon polariton mode in the mid- and long-wavelength infrared. With conformal alumina coating, the plasmonic absorber demonstrates outstanding reliability in rigorous aerospace-grade tests under harsh mechanical and thermal environmental conditions.
研究领域:
光学
·
材料科学
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
FUEL PROCESSING TECHNOLOGY
·
2022
·
IF 8.129
Shuang Ma,Ying Chen,Xianlong Liu,Lun Pan,Xiangwen Zhang,Ji-Jun Zou
High-energy-density (HED) fuels have drawn substantial attention for volume-limited aerospace vehicles because they can provide high propulsion energy. Herein, we report a route for synthesis of HED fuel pentacyclo[5.3.0.0 2,5 .0 3,9 .0 4,8 ]decane (PCD) with strained structure by photoinduced intramolecular [2 + 2] cycloaddition of dicyclopentadiene (DCPD). The reaction conditions, like photosensitizer , solvent, concentration, temperature and light intensity , were optimized for achieving the best photochemical performance, with the high DCPD conversion of 95.89% and high PCD selectivity of 62.08%. The triplet quenching and phosphorescence quenching results show that DCPD cycloaddition proceeds under the photosensitizer photoexcitation , triplet-triplet energy transfer, cyclization and relaxation. Moreover, a reaction kinetic model is established with the reaction rate constant being correlated with light intensity, with the pseudo reaction kinetics parameters and reaction rate equations obtained. As a caged fuel, PCD possesses both high density (1.066 g/cm 3 ) and high volumetric neat heat of combustion (44.43 MJ/L), which is very promising to blend with current high density liquid fuels to obtain high-performance fuels for practical application.
研究领域:
化学
·
材料科学
·
能源科学
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Wenyan Huang,Zhichao Xue,Lingjie Li,Shengjian Mao,Yufeng Wang,Yeqi Zhu,Tao Luo,Qianwen Tao,Rongqian Yao
Strengthening interface bonding for superior mechanical/ablation performances of SiC-based aerospace vehicle components remains a major challenge. Attractively, polycarbosilane-vinyltriethoxysilane-graphene oxide with addition of TiN/B (PVG(TiN, B)) were successfully synthesized for the first time. An ingenious route via re-pyrolyzing ball-milling-induced SiC(rGO, TiB 2 ) p fillers/PVG(TiN, B) precursors blends was introduced to prepare lightweight SiC(rGO, TiB 2 ) composite polymer-derived ceramics (PDCs). Interestingly, both SiC(rGO, TiB 2 ) p and PVG(TiN, B) pyrolysis products, composed of β-SiC/SiO x C y /C free (rGO, TiB 2 ), are tightly coupled by each other owing to plentiful Si-dangling bonds. In-situ formed intergranular TiB 2 /B 4 C, well compatible with amorphous ceramic network, can prevent β-SiC grain growth, strengthen interface bonding, and even hinder further crack propagation along the grain boundaries. Particularly, samples re-pyrolyzed at 1300 °C possess unique combination of good hardness (5.44 GPa), excellent fracture toughness (4.70 MPa·m 1/2 ), high flexural strength (41.90 MPa) and outstanding compressive strength (126.33 MPa). Improved high-temperature and ablation resistance gives them distinct advantages of interlocked microstructure under exposure of butane flame. As demonstrated, SiC(rGO, TiB 2 ) composite PDCs were developed into porous ceramics with good thermal insulation , focusing on manufacturing large-size bulk PDCs for thermal protection system of hypersonic vehicles.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2025
·
IF 4.7
Weiwei Zhang,Huaxia Wang,Huicong Liu,Xianwei Zhao,Pei Li,Liqun Zhu,Haining Chen,Weiping Li
Superhydrophobic coatings have garnered significant attention in the aerospace industry due to their unique functionalities. However, most reported coatings are restricted by poor thermal stability (typically below 400 °C), complex fabrication processes, or reliance on fluorinated raw materials, which limit their practical applications. This study employs a fluorine-free water-based acrylic/organosilicon composite resin and dual-scale SiO2/ZrO2 particles to prepare a high-temperature-resistant superhydrophobic coating. The coating exhibits a water contact angle (WCA) of 156.1° and a sliding angle (SA) of 6.9°. Additionally, it maintains good hydrophobicity even after being treated at 500°C for 1 hour. In addition, the coating demonstrates excellent multifunctional durability, including resistance to 200 abrasion cycles, electrolyte corrosion, acid–base solutions, and common organic solvents. Benefiting from its environmentally friendly composition and simple spray-coating process, this work provides a scalable strategy for fabricating robust superhydrophobic coatings tailored for demanding aerospace environments.
研究领域:
材料科学
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表面工程
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航空航天工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
FUEL PROCESSING TECHNOLOGY
·
2021
·
IF 7.033
Jiawei Xie,Chengxiang Shi,Yunxiao Zhao,Lun Pan,Xiangwen Zhang,Ji-Jun Zou
Design and choice of fuels continue to be improved for aviation propulsion, and alkyl adamantanes have attracted great attention due to their high density, good low-temperature properties and potential characteristics. Herein, we reported a facile route to synthesize mono-substituted alkyl adamantanes via modified Grignard coupling (followed with one-step hydrodeoxygenation), including 1-ethyl-adamantane, 2-ethyl-adamantane, and 1- n -propyl-adamantane with high yields (> 75%). The process was modified via concentrating the Grignard reagents and altering the solvent, and one-step hydrodeoxygenation catalyzed by commercial Pd/C and zeolites was developed. Subsequently, comprehensive characteristics of alkyl diamondoid series, such as oxidation stability and combustion properties , were evaluated using pressure differential scanning calorimetry , rapid small-scale oxidation test, and hot-plate ignition test. Also, the specific impulse of alkyl diamondoids were revealed by theoretical calculation. The high-density alkyl diamondoids present adequate oxidation stability and possess better combustion characteristics over JP-10, thus can be considered as potential high-energy-density fuel for aerospace propulsion .
研究领域:
化学工程
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能源科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2022
·Vol. 24
·期 10
·1859-1865
·
IF 3.756
Shouzhen Li,Fan Wu,Xuan Zhang,Guangting Han,Yang Si,Jianyong Yu,Bin Ding
Developing ceramic materials for thermal insulation is vital for various applications. However, ceramics have been considered intrinsically rigid and brittle due to the limited crystallographic slips and structural collapse during service. Their lack of flexibility has hampered many high-end applications of ceramic materials. We developed flexible Al2O3/ZrO2 nanofibrous membranes via sol–gel electrospinning and calcination. Al2O3/ZrO2 nanofibrous membranes had flexibility from −196 °C to 1300 °C and low thermal conductivity (∼0.03166 W m−1 K−1 at room temperature). They also supported 1350-times their weight without suffering structual damage. Hence, Al2O3/ZrO2 nanofibrous membranes could be used for thermal insulation in aerospace and industrial fields, and even in harsh environments.
研究领域:
材料科学
·
热工程
·
纳米技术
✓ 已验证
DOI
高影响因子
Polymer Chemistry
·
2023
·Vol. 14
·期 19
·2317-2325
·
IF 4.6
Wenjing Kong,Jiaqi Sun,Muyao Gao,Tianhao Li,Ming Liu,Yujie Song
Phthalonitrile resins as a unique class of high-performance materials have attracted increasing interest in wide application fields including aerospace, electronic packaging and flame-retardant materials. In this article, the boron element was incorporated into phthalonitrile resins to improve the processibility and thermal stability. The synthetic borate and aryl borate-modified resorcinol-based phthalonitrile monomers (BPN and PBPN) showed lower melting points than traditionally employed RPN. The presence of hydroxyl groups leads to autocatalytic curing behavior of BPN and PBPN. Due to the presence of the boron-branched structures in the polymer backbone of the modified phthalonitrile resins, these resins exhibited better thermal stability than traditionally investigated RPN and their mechanical properties are stable over a wide temperature range, which is crucial in service under harsh environments. The results suggest that boron-modified phthalonitrile resins possess great potential in the field of high-temperature resistant materials.
研究领域:
材料科学
·
化学工程
·
航空航天工程
·
高分子科学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED ENGINEERING MATERIALS
·
2025
·
IF 3.3
Yanbo Zhao,Hao Zhang,Qingjun Ding,Gai Zhao,Huafeng Li,Ling Yang
This study explores the hygrothermal aging resistance of graphene nanosheet (GN)-reinforced epoxy composites via a combined experimental and molecular dynamics (MD) simulation approach. Epoxy systems with 0–1.0 wt% GN are fabricated and aged at 80 °C for 516 h. Optimal performance is achieved at 0.75 wt% GN, exhibiting improved tensile strength, impact toughness, hardness, and glass transition temperature. GN addition reduces moisture uptake and diffusion by physically obstructing water pathways and restricting chain mobility. Scanning electron microscopy analysis shows suppressed crack formation, while MD simulations reveal that GN enhanced interfacial bonding, decreases fractional free volume, reduces mean square displacement, and limits water-induced hydrogen bonding. Notably, GN increases interfacial interaction energy by up to 96.4% relative to water–epoxy bonding. These results demonstrate a multiscale reinforcement mechanism and offer a rational strategy for designing durable epoxy composites for aerospace and electronic packaging applications.
研究领域:
材料科学
·
聚合物复合材料
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纳米技术
·
机械工程
·
航空航天工程
·
电子封装
✓ 已验证
DOI
高影响因子
WEAR
·
2024
·
IF 5.3
Yanfei Liu,Zhikai Fan,Shengtao Yu,Ruize Zhang,Xiangyu Ge,Wenzhong Wang
MoS 2 –Sb 2 O 3 coating is commonly used as solid lubricant for titanium alloys , but the wear-resistance performance is still limited. Core-shell annealed nanodiamond (AND) particle is used as reinforcement for MoS 2 –Sb 2 O 3 coating on Ti6Al4V substrate treated by plasma electrolytic oxidation (PEO) and laser surface texturing (LST). The incorporation of AND particles into the MoS 2 –Sb 2 O 3 coating results in a 39 % decrease in friction and significantly reduces wear on the composite coating . Structural transformation of AND particles to amorphous carbon and graphitic structure promotes the densification of top-layer coating, enhancing lubrication and wear-resistance. Change of contact stress by PEO-LST promotes the formation of dense tribofilm and re-orientation of MoS 2 . This study has implications for the development of solid lubrication coatings for aerospace applications through functional nanomaterials and targeted designed surfaces.
研究领域:
材料科学
·
表面工程
·
纳米技术
·
机械工程
✓ 已验证
产品关联
DOI
高影响因子
IRANIAN POLYMER JOURNAL
·
2025
·
IF 2.8
Zhu Guanglai,Xu Chao,Xu Ziyi,Yu Yitao,Sun Cuicui,Zhuang Haihua,Ma Baichang,Hou Yantao,Li Bing,Wang Zhenhua,Dai Caifeng
Phthalonitrile (PN) resins are high-performance thermosetting polymers recognized for their exceptional thermal stability and flame resistance, making them attractive candidates for aerospace, electronics, and high-temperature structural applications. However, their broader adoption is hindered by two primary challenges: the high melting point of PN precursors and the volatility of conventional curing agents, which complicate processing and raise safety concerns. Despite ongoing research, effective strategies that simultaneously address these issues while enhancing the overall performance of PN resins remain limited. In this study, we introduce a novel self-catalyzing curing agent, 4-(7-amino-1-naphthoxy) phthalonitrile (ANP), which functions both as a precursor and curing agent. The presence of amino and naphthoxy groups promotes efficient curing without the need for external catalysts, thereby expanding the processing window. Additionally, amino and cyano groups act as reactive sites and flexibilizers, enhancing the properties of bisphenol A-based PN (AFPN) resin systems. Thermal analysis revealed that the ANP-modified resin exhibits outstanding thermal and thermo-oxidative stability, with a 5% weight loss temperature ( T 5% ) exceeding 450 °C and a glass transition temperature ( T g ) above 439 °C. Vector network analysis further demonstrated excellent dielectric properties, with a dielectric constant ( D k ) of 3.15 and a dissipation factor ( D f ) of 0.017 at 9.05 GHz. These findings indicate that ANP effectively overcomes key limitations of conventional PN resins. As a multifunctional curing agent, ANP shows significant potential for the development of advanced PN-based composites in aerospace, electronic packaging, and microelectronic applications. Graphical abstract
研究领域:
材料科学
·
高分子化学
·
化学工程
·
航空航天工程
·
电子封装
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）