CORROSION SCIENCE
·
2025
·
IF 8.5
Huan Guo,Bingzhu Wang,Ruifeng Li,Cheng Su,Jixiang Dai,Yong She,Yongzhong Zhao,Jianjun Sha
Aiming at forming a stable ablation layer for hafnium-based ultrahigh-temperature ceramics under ablation environment, in this work, the Ta-based ceramic was introduced into the Hf-based ceramic, and the effect of Hf/Ta molar ratios on the ablation response behavior and mechanism of (Hf, Ta)B 2 -(Hf, Ta)C-SiC ceramics was investigated. It was found that the introduction of Ta could form a continuous and dense ablation layer. When Hf/Ta= 0.9:0.1, the ceramic composite presented excellent ablation resistance, and the linear ablation rate was −0.083 μm/s, which was only 5.85 % of that of Hf-based ceramics (HfB 2 -HfC-SiC). The excellent ablation resistance attributed to that the ablation products (Ta 2 O 5 and Hf 6 Ta 2 O 17 ) could strongly bonded to the substrate, which was conducive to enhance the stability of the ablation layer.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2023
·
IF 4.2
Yuan Wang,Yuanbo Cai,Youquan Ling,Haoruo Zhang,Jinfeng Tian,Zhengguang Heng,Shengtai Zhou,Shuang Xia,Mei Liang,Huawei Zou
Flexible thermal protection materials with excellent mechanical and ablative properties were one of the key components in promoting the development of a new generation of aircraft. In the present work, a robust, strongly adhesive, and ablation-resistant PDMS coating was prepared through the covalent connection between PDMS and vinyl-functionalized epoxy resin (EAP) by hydrosilylation. The EAP synthesized by molecular design was uniformly dispersed in the PDMS matrix as an island phase-separation structure. The tensile strength, elongation at break, and shear strength of EAP-modified PDMS (EAP@PDMS) were significantly increased by 575%, 155%, and 183%, respectively, when compared with pure PDMS. Besides, the linear ablation rate (LAR) of EAP@PDMS was greatly declined, which was 80.1% lower than that of pure PDMS, exhibiting excellent ablation resistance. This work opened an avenue toward developing flexible thermal protection coatings with excellent mechanical and ablative properties for aerospace applications.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Shiquan Zhang,Jian Zhang,Sheng Hu,Ruizhi Zhang,Junguo Li,Qiang Shen
Ablative thermal protection materials are widely used in entry and re-entry vehicles which benefit from their strong adaptability. However, long-term ablation has been a limitation due to the consumption of the matrix of the ablative materials. In this work, the microstructure evolution and ablation properties of the MoSi 2 /mica-modified CF/BPR composites with and without hollow silicate glass microspheres (HSMs) under protracted ablation have been investigated. The mass ablation rates decreased while the linear ablation rates increased when the ablation times were prolonged. The composites with 30 vol.% HSMs have good insulation properties, shown by a lower backside temperature of 240.9 °C after 100 s of ablation. The decrease in thermal conductivity limited heat transfer in both the axial and horizontal directions. This led to heat concentration and severe ablation at the central surface. The three-dimensional porous and the ladder structure formed in the transfer region, and the features gradually disappeared while extending the ablation times because of the flame erosion and formed liquid phases. The heat diffusion and concentration within the matrix established a gradient temperature field, which determined the ablation behavior and mechanism, providing valuable insights for the development of advanced ablative thermal protection materials.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 142
·期 3
·e56384
·
IF 2.7
Hao Zhang,Chuxiang Zhou,Zhaohui Lu,Yue Tian,Jinfeng Tian,Xiaofeng Chi,Liwei Yan,Jinggang Gai,Shengtai Zhou,Mei Liang,Huawei Zou
Silicone rubber-based materials are important thermal protection materials for high-temperature applications. In this work, a holistic analysis of silicone rubber-based materials was conducted with an aim to comparatively study the ablative performance of different rubber matrices using the oxyacetylene flame. Six types of silicone rubber-based composites were prepared in large quantities using a customized device, and the relationship between the ablative properties and influencing factors was elucidated, which was useful in guiding the design and preparation of flexible ablative materials for thermal protection purpose. The expansion and ceramicization of char layer, which was realized by introducing expandable graphite and alumina was found helpful in reducing line ablation rate. The increase in the thickness of char layer and the decrease in surface roughness indicated a successful implementation of the above strategy, which led to a significant decrease in line ablation rate and an increase in thermal insulation performance of the studied system. Moreover, a thermal ablative composite with excellent moldability after ablation process was prepared which showed a promising application as a reusable thermal protection material. This work provided guidelines for developing flexible thermal ablative composites, which can be targeted for practical applications in aerospace and fire protection sectors.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Jie Zhang,Rongying Yin,Zihao Fan,Xinwei Zhou,Haiming Cheng,Changqing Hong,Xinghong Zhang
Lightweight ablative thermal protection materials (TPMs), which can resist long-term ablation in an oxidizing atmosphere, are urgently required for aerospace vehicles. Herein, carbon fabric/phenol-formaldehyde resin/siloxane aerogels (CF/PFA/SiA) nanocomposite with interpenetrating network multiscale structure was developed via simple and efficient sol–gel followed by atmospheric pressure drying. The ternary networks structurally interpenetrating in macro-, micron-, and the nanoscales, chemically cross-linking at the molecular scale, and silica layer generated by in situ heating synergistically bring about low density (∼0.3 g cm–3), enhanced mechanical properties, thermal stability, and oxidation resistance, and a low thermal conductivity of 81 mW m–1 K–1. More intriguingly, good thermal protection with near-zero surface recession at 1300 °C for 300 s and remarkable thermal insulation with a back-side temperature below 60 °C at 20 mm thickness. The interpenetrating network strategy can be extended to other porous components with excellent high-temperature properties, such as ZrO2 and SiC, which will facilitate the improvement of lightweight ablative TPMs. Moreover, it may open a new avenue for fabricating multifunctional binary, ternary, and even multiple interpenetrating network materials.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CORROSION SCIENCE
·
2024
·
IF 7.4
Chuangfang Tao,Huanyi Liao,Bin Chen,Weiguo Mao,Jie Wang,Cuiying Dai,Zheqiong Fan,Zhe Zhou,Jinglv Zuo
The (PyC-C sf )/ZrB 2 -SiC-ZrC ceramics are fabricated by reactive spark plasma sintering (RSPS) at 1200 °C. The sample has a low density and intact pyrolytic carbon modified carbon fiber (PyC-C sf ). After three cycles of ablation (heat flux = 2.38 MW/m 2 , t = 120 s), samples demonstrate excellent resistance to oxidative ablation. The mass recession rate and linear recession rate for the sample are 3.41 g/m 2 ∙s and 0.68 µm/s, respectively. Excessive content of carbon destroys the oxide layer by forming large amounts of CO 2 during the ablation process. The inner layer of intact PyC-C sf aggregates around the borosilicate which are denser in the oxide layer. Finally, a porous ZrO 2 -SiO 2 layer and a dense ZrO 2 -SiO 2 -C sf layer are formed on the surface of the sample which resists ablation.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Tianyang Xia,Qiang Gao,FuShuai Wang,Liancai Xun,Zibin Chen,Ping Hu
Carbon fiber reinforced ultra-high temperature ceramic matrix composites (C f /UHTCMCs) are considered ideal materials for thermal protection components in hypersonic vehicles due to their outstanding overall performance. However, the existing fabrication techniques for C f /UHTCMCs face significant engineering challenges, including high raw material costs and complex processing methods. Here we propose a cost-effective fabrication strategy. This approach ensures the oxidation and ablation resistance of the material by incorporating sufficient ZrB 2 and SiC, followed by filling the remaining pores in the composite with in-situ derived pyrolytic carbon from furfuryl ketone resin, which significantly reduces fabrication costs and enables rapid densification. The C f /ZrB 2 -SiC-C composites produced by this strategy exhibit a flexural strength of 468 ± 18 MPa and a fracture toughness of 18.23 ± 1.14 MPa m 1/2 . Furthermore, the composites remain non-ablative when exposed to temperatures of 2300 °C for extended periods, with a mass ablation rate of only 4.14 × 10 −6 g/(mm 2 ·s) after 400 s of testing. This strategy offers significant design versatility and can be applied to various ultra-high temperature ceramic systems, offering a novel and cost-effective approach to the development of thermal protection materials for hypersonic vehicles.
研究领域:
材料科学
·
航空航天工程
·
陶瓷材料
·
复合材料
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2025
·
IF 14.3
Zhixiong Huang,Yuzhan Lu,Shaoxiong Weng,Guoqin Jiang,Wanglin Ying,Zongyi Deng
The rapid development of reusable hypersonic vehicles has put forward urgent demand for reusable large-area thermal protection materials. Herein, a novel ceramizable composite modified by Ti 3 AlC 2 and B 4 C was proposed, and its long-term oxidation resistance and reusability after isothermal cyclic high-temperature oxidation experiment at 1200°C for 30 min for 1–10 cycles were explored. The high-temperature bending strength after treated once reached 80.0 MPa, and it kept above 43 MPa and the structural integrity of the samples was good even after eight high-temperature oxidation treatments, demonstrating that the ceramizable composite possessed good application potential as reusable large-area thermal protection materials. The anti-oxidation mechanism was proposed based on microstructure evolution, element distribution, phase evolution, and thermodynamics analyses during the high-temperature oxidation cycles. Ti 3 AlC 2 and B 4 C underwent a series of ceramization reactions with O 2 and pyrolytic carbon (PyC), converting the ceramizable composite into a ceramized composite in-situ and playing the roles of oxygen consumption, self-healing, oxygen inhibition, carbon fixation, and heat absorption, by which carbon fibers and PyC were protected.
研究领域:
材料科学
·
航空航天工程
·
高温材料学
·
复合材料学
·
热防护系统
·
固态化学
·
结构材料
✓ 已验证
产品关联
DOI
高影响因子
Journal of Macromolecular Science Part B-Physics
·
2024
·
IF 1.2
Wei Zhang,Guoqin Jiang,Yang Liu,Zongyi Deng,Zhixiong Huang,Xueyuan Yang
Carbon fiber/phenolic resin composites (CF/Ph) are often used on the surface of hypersonic vehicles as thermal protection materials. In this paper, the composite materials were prepared by a compression molding process with carbon fiber and boron phenolic resin modified by TiC and B4C. The high-temperature flexural strength and anti-ablation behavior of the composites (TB) were studied. The results showed that the residual weight yield at 1500 °C of TB-10 (B4C content of 10 phr) increased by 39.22% compared to that with no B4C (TB-0). The flexural strength of TB-10 was increased by 19.51% and 19.69% at 1400 °C and 1600 °C, respectively, with respect to TB-0 at the same temperatures. The linear ablation rate and mass ablation rate of TB-10 were reduced by 24.32% and 5.58%, respectively, compared with TB-0. By exploring the anti-ablative mechanisms, it was revealed that PyC, liquid B2O3 and TiO2, all of which were formed at high temperatures, tended to fill the inner cracks of the composite and, therefore, prevent the oxide to further diffuse in. Along with the outer ceramic layer, the three components above play a synergistic effect to improve the ablative property.
研究领域:
材料科学
·
航空工程
·
复合材料
·
高温技术
✓ 已验证
DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2024
·
IF 8.3
Zhaohui Lu,Shengtai Zhou,Liwei Yan,Yue Tian,Huawei Zou,Xiancheng Ren
Silicone rubber-based composites are used as thermal protection materials due to their large deformability and excellent thermal insulation properties. In this study, two types of commercially available silicone rubbers were selected as the matrices for preparing flexible thermal protection materials. The influence of applied strain rates on the microstructure, ablation and ceramifiable behavior of silicone rubbers was studied. The research showed that the ablation performance of silicone rubbers deteriorated greatly at large strain rates. The reinforcement using deformable carbon fiber fabrics was proposed to effectively counter the deterioration of the ablative properties incurred by applying external strain. The back-face temperature reached as low as 186 °C when the samples were ablated at above 1000 °C for 50s at a strain rate of 20 %. The proposed strategy was proved helpful in developing high performance flexible thermal protection systems that exhibit promising application in the fields of aerospace and fire protection among others.
研究领域:
材料科学
·
航空航天工程
·
防火工程
✓ 已验证
DOI
高影响因子
JOURNAL OF THE TEXTILE INSTITUTE
·
2025
·
IF 1.5
Shiyu Li,Shuqiang Liu,Huimin Li,Man Zhang,Gaihong Wu,Kun Jia,Wenjie Dong,Jingjing Zhao,Huiqin Zhang
Fire protection and thermal insulation clothing is an important protective equipment in the process of fire fighting and rescue, and it is of great significance to enhance its thermal protection effect. This paper adopts the in situ synthesis of SiO2-based fiber aerogel with excellent thermal insulation function and basalt fabric with flexible high temperature resistance and excellent mechanical properties, after which TiO2 nanoparticles are uniformly dispersed in the resin solution, and then the composite material is applied to the surface of basalt fabric using the impregnation process to prepare a composite fabric with excellent thermal stability and thermal insulation properties. The results show that the fineness of the fiber increases with the increase of PVA concentration, and gradually becomes stable at 10% concentration and the heat insulation performance is the best. When the amount of aerogel pre-dispersion is 20 ml, the temperature can be kept below 70 at 100 °C. TiO2 can reduce the infrared radiation transmittance, and when the addition amount is 10%, it has a good protection effect on the fabric. The development of this fabric has important practical significance and application value for fire protection, industrial production, building insulation, and other fields.
研究领域:
材料科学
·
纺织工程
·
消防防护
·
热防护材料
·
高分子复合材料
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2025
·
IF 14.3
Jiandong Yin,Bin Wang,Yunmei Xie,Guiyan Yang,Dong Xiang,Yuanpeng Wu,Tao Peng,Jie Zhang,Tianhang Huang,Chunxia Zhao,Hui Li,Jinbo Cheng,Xinnian Fan
High-performance aerogels, characterized by ultra-low density and very low thermal conductivity, show great potential for applications in aerospace, energy management, and fire safety. However, conventional inorganic aerogels often exhibit high brittleness and poor toughness. Single-component aramid Ⅲ nanofiber (AⅢNF) aerogels tend to collapse structurally when exposed to high temperatures or flames, which severely restricts their long-term performance. To overcome this challenge, we propose an interface-engineered in-situ polymerization coating strategy. A robust composite aerogel framework is fabricated by in-situ polymerizing polybenzoxazine (PBa) onto the surface of AⅢNFs. The preparation of this aerogel involves four main steps: (i) deprotonation and reprotonation of AⅢNFs, (ii) acid-catalyzed polymerization of benzoxazine monomers, (Ⅲ) ice-template-assisted freeze-drying, and (iv) hydrophobic modification through chemical vapor deposition. The resulting PBa/AⅢNF composite aerogel demonstrates very low thermal conductivity (0.027–0.032 W m −1 K −1 ), high compressive strength (up to 18.92 MPa), a robust compressive modulus (11.59 MPa), and intrinsic flame retardancy with a limiting oxygen index of 41.7%. Mechanistic analysis reveals that the PBa coating strengthens interfacial bonding via hydrogen bonding and π-π interactions, while generating a dense carbon layer during combustion that effectively impedes heat and oxygen transfer. In addition, the aerogel displays superhydrophobicity (contact angle > 150°) and long-term thermal aging stability at elevated temperatures. This study proposes a universal strategy that integrates high-char-forming polymers with nanofiber frameworks, enabling synergistic optimization of aerogel lightweight design, mechanical reinforcement, and multifunctional protection.
研究领域:
材料科学
·
高分子化学
·
纳米复合材料
·
热防护材料
·
防火安全工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）