CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Wei Guo,Jing Hou,Tiesong Lin,Peng He
This study focused on joining high volume fraction SiC particles reinforced aluminum matrix composites (55 vol% SiC p /Al) with 50SnO–20ZnO–30P 2 O 5 (SZP) glass directly in air. Prior to joining, various properties of the SZP glass and its wettability on the composites were investigated. The results showed that the coefficient of thermal expansion of the glass was 10.58 × 10 -6 /°C (20–369 °C), which closely match with 55 vol% SiC p /Al composites. The glass transition, crystallization, and softening temperature were identified to be 369, 397, and 486 °C, respectively. Subsequent wetting tests confirmed excellent wettability of the glass on the composites. The joint exhibited sound bonding that was free of defects when brazed at 550 °C for 10 min Zn 2 P 2 O 7 was formed adjacent to the composites due to the crystallization of the glass. The mechanical properties of the joint were proven to be suitable, exhibiting an average shear strength of 55.3 MPa.
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES COMMUNICATIONS
·
2020
·
IF 4.915
Jing He,Hua Wang,Qiqi Qu,Zheng Su,Tengfei Qin,Yunsheng Da,Xingyou Tian
Graphene oxide (GO) has been widely used in modern electronic packaging materials because of its excellent performance. Nevertheless, inherently electrical conductivity and hygroscopicity of GO would greatly reduce the reliability of polymer composites as electronic packaging materials. In this work, different ratio GO and functionalized silicon carbide (SiC) particles formed an effective thermal conduction path through electrostatic self-assembly in epoxy resin (ER). SiC particles also played a critical role in enhancing the reliability of epoxy composites due to hydrophobicity and poor electrical properties. The obtained composites, at the optimal ratio of GO and SiC particles of 1:100, exhibited a high thermal conductivity (0.91 W/(mK)). The composites also presented that the thermal conductivity and electrical insulating were not destroyed after 40 h of wet-heat treatment. This strategy provided an insight into the design of high-performance composites with the potential to be used in advanced electronic packaging.
✓ 已验证
产品关联
DOI
高影响因子
CARBON
·
2018
·
IF 7.082
Baisong Guo,Biao Chen,Xinming Zhang,Xi Cen,Xinhua Wang,Min Song,Song Ni,Jianhong Yi,Tao Shen,Yong Du
In this work, the effects of aluminum carbide (Al 4 C 3 ) on the mechanical properties and thermal behaviors of Al based composites reinforced by SiC and carbon nanotubes (CNTs) were investigated. The formation of Al 4 C 3 was precisely controlled in the temperature range from 530 °C to 630 °C (80%–95% of the Al melting point) during the post heat treatment. Microscopy observations revealed that Al 4 C 3 rods are originated from CNTs instead of SiC particles. Quantity and size of Al 4 C 3 are highly dependent on the heat treatment temperature. It was found that the mechanical properties of the Al based composites were significantly affected by the size of Al 4 C 3 . Moreover, the formation of Al 4 C 3 helps to decrease the coefficient of thermal expansion (CTE) of the composites due to the consumption of Al and the enhanced interfacial bonding . This study provides a potential approach for ameliorating the mechanical and thermal performances of CNTs reinforced metal matrix composites .
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Qianli Ma,Yuchen Liang,Chuanshuo Wang,Yang Liu,Xiaofang Lv,Shidong Zhou
The composite phase change materials (CPCMs) are always created by integrating high thermal conductivity additives with paraffin, facilitating heat dissipation during the battery discharging process. However, under cold conditions, the battery needs to utilize the paraffin intrinsic low thermal conductivity to reduce heat loss. Thus, creating a CPCM that rapidly dissipates heat at high temperatures and retains heat at low temperatures is a new challenge. This research develops a novel CPCM with the water droplets-SiC particles network inside the paraffin matrix. 5 wt% SiC particles and 15/25/35 wt% water enhance the thermal conductivity from 0.24 Wm −1 K −1 to 1.29/1.45/1.68 Wm −1 K −1 , respectively. The network acts as a thermally conductive pathway, leading to an average decrease of 3.7 °C or 4.4 °C in the final battery temperature at 2C or 3C discharge rate. Water crystallizes and releases heat, thereby this process maintains the temperature of battery at 0 °C for an extended period exceeding 16 min. Moreover, network stability is related with water content. After 15 heating or cooling cycle tests, droplet coalescence or deformation is less prone to occur when CPCMs with a water content of 15/25 wt% than that with 35 wt%, preventing the network structural breakage.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2025
·
IF 6.2
Huan Guo,Bingzhu Wang,Ruifeng Li,Xiaohu Li,Jixiang Dai,Yongzhong Zhao,Jianjun Sha
Aiming at the high sintering temperature and densification difficulty in ultrahigh-temperature ceramics, the low-temperature facial and fast preparation of ultrahigh-temperature multi-phases (Hf, Ta)B 2 -(Hf, Ta)C-SiC solid solution ceramics was realized using in-situ reaction combined with hot pressing, where the HfSi 2 , TaSi 2 , B 4 C and C were used as raw materials. The effect of Hf/Ta molar ratio on the microstructural evolution and mechanical properties of ultrahigh-temperature multi-phases ceramics was investigated. The results found that the in-situ reaction and the formation of solid solution phase could promote the densification process. On the other hand, the addition of Ta element induced the formation of high aspect ratio grains with an interlock structure within the ceramic matrix and significantly improved the mechanical properties. When the Hf/Ta molar ratio was 7/3, the multi-phases ceramics exhibited the best mechanical properties, with a hardness of 25.59 GPa, a flexural strength of 556.61 MPa, and a fracture toughness of 5.13 MPa·m 1/2 . The enhanced mechanical properties were attributed to the synergistic effect of multiple strengthening and toughening mechanism, including grain bridging, crack bifurcation and grain pullout induced by high aspect ratio (Hf, Ta)B 2 grains.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2024
·
IF 5.8
Wenyan Huang,Yinong Zheng,Qianwen Tao,Yeqi Zhu,Siqi Lan,Ying Yu,Shengjian Mao,Zhichao Xue,Rongqian Yao
High flight speed of hypersonic vehicles will push thermal insulation composites to achieve balanced enhancement of high porosity with increasing load-bearing capability. Herein, hierarchically porous SiC(rGO) polymer-derived ceramics (PDCs) with lightweight, heat-insulating, anti-ablative and tough engineered merits, are designed from polycarbosilane-vinyltriethoxysilane-graphene oxide precursors by re-pyrolysis/graphite-assisted decarburization . Graphite pore-forming agents tightly coupled with SiO x C y /C free (rGO) by C-dangling bonds, can inhibit SiO x C y decomposition, increase ceramic network disorder and expedite concurrent removal of C free . SiO 2 generated from Si-dangling oxidation bonding, efficiently densifies framework to retain mechanical performances, and meanwhile creates more interfaces to enhance phonon scattering. Such structure similar to nodular cast iron confers low thermal conductivity (0.11 W·m -1 ·K -1 ), particularly, fully preserves good compressive strength (5.4 MPa) for SiC(rGO) 40% . Under both cyclic butane flame ablation (∼1300 °C) and long-term oxidation for 7200 s, self-healing effect of SiO 2 imbues products with good structural integrity, shedding light on the opportunity to apply any thermal protection system.
✓ 已验证
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2026
·
IF 6.9
Jinchi Ju,Shujun Hu,Hong Meng,Pengfei He,Chuan Sun,Kaiju Lu,Ximing Duan,Youjiang Zhang,Shengxi Jia,Bo Zhang,Xiubing Liang
“Outer ablation-resistant and inner oxygen-barrier” architecture in HfB 2 -SiC coating. • Rapid solidification behavior during induction plasma spheroidization is revealed. • In situ DPV monitoring reveals stable in-flight behavior of HfB 2 -SiC droplets. • High-density HfB 2 -SiC coating resists 1900 °C ablation without spallation. Plasma sprayed HfB 2 -SiC ultrahigh-temperature ceramic (UHTC) coatings suffer from inherent defects and progressive formation of SiC-depleted layer during high-temperature oxidation, leading to spallation degradation above 1800 °C. To address these issues, we propose a novel strategy that synergistically integrates powder feedstock engineering and coating architecture design without introducing any modifying additives. On the one hand, we successfully fabricated a high-density coating with reduced porosity (12.56%) by combining induction plasma spheroidized (IPS) HfB 2 -SiC feedstock powders with advanced DPV-based in-flight particle diagnostics technology. On the other hand, we developed a novel “outer ablation-resistant and inner oxygen-barrier” architecture of coating system. A Si-rich transition layer, fabricated by slurry sintering and pack cementation, served as an internal silicon reservoir. Results showed that the IPS coating demonstrated enhanced ablation resistance at 1900 °C with significantly reduced mass ablation rate (−0.056 mg/s) and effectively avoided the typical spallation failure. Based on the structural integrity of the coating retained after ablation, the evolution of cracks at the bottom of the depleted layer was identified as a potential indicator for assessing the coating ablation behavior. The IPS coating suppressed the oxidation of HfB 2 at the bottom of the depleted layer and prevented bilayer cracking, maintaining superior structural integrity and thermal protection capability. Download: Download high-res image (259KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
APPLIED THERMAL ENGINEERING
·
2026
·
IF 7.5
Chao Qin,Liang Feng,Xi Zhu,Yawen Huang,Juan Yu,Chengyao Hu
Photothermal superhydrophobic surfaces hold substantial significant promise for anti-icing and de-icing applications. However, conventional materials are severely constrained limited by poor durability and low photothermal conversion efficiency, hindering their practical application. To overcome these limitations, we developed a novel photothermal superamphiphobic coating via a two-step spraying process. The coating is fabricated using micro-SiC and urchin-like TiO₂ particles modified with polypyrrole (PPY) and 1H,1H,2H,2H-perfluorooctyltriethoxysilane (FAS). The coating consists of a durable underlayer of SiC-reinforced epoxy and a top layer of urchin-like TiO₂ particles modified with PPY and FAS. The resulting surface demonstrated: (i) Exceptional durability. It retains superhydrophobicity after 1000 abrasion cycles under a 200 g load using 1000-grit sandpaper, withstands impact from 600 g of sand, and endures 160 min of water jetting. This performance exhibits distinct advantages compared with previously reported photothermal superhydrophobic coatings. (ii) Superior photothermal conversion efficiency. The urchin-like TiO₂ particles form a hierarchical micro-nano structure comprising nano-spines and submicron spheres, enhancing light-trapping capability. The coating demonstrates a high solar absorption of 97.31%, enabling its surface temperature to rise to 81.4 °C within 5 min under 1-sun irradiation. (iii) Stable superamphiphobicity. It shows water and oil contact angles of 161° and 151.7°, respectively, along with robust chemical and thermal stability. At −10 °C, the coating extends the freezing time of water droplets to 2057 s. Combined with its excellent durability, this ensures long-term anti-icing reliability. By strategically integrating the hierarchical structure with functional components, this work simultaneously enhances the coating's photothermal performance and mechanical durability, providing a promising and robust solution for practical anti-icing and de-icing applications.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2023
·
IF 5.7
Zihe Li,Jian Sun,Xu Zhang,Jingde Zhang,Guifang Han
Mullite-bonded SiC porous ceramics are of potential in hot gas infiltration while the insufficient mechanical performance limits its application. In-situ mullite whisker reinforcement is a potential solution but the formation temperature mismatch between mullite whisker and bonding layer is a challenge. In that case, mullite whiskers massively form ahead of the bonding layer excessively consuming alumina leading to poor bonding layers between SiC particles and thus, the mechanical performance. Herein, the mismatch was solved by using CaF 2 as a temperature-controlled reaction switch. As a result, both the bonding layer and whisker synchronously formed. The material showed significant reinforcement effects, and exhibited a flexural strength of 124.8 MPa and a fracture toughness of 1.53 MPa·m 1/2 with an open porosity of 36.6 vol%, realizing a breakthrough in the mechanical performance. Interestingly, an increase in oxygen vacancy concentration with the sintering temperature was first reported, which may benefit the whisker growth.
✓ 已验证
产品关联
DOI
高影响因子
Nano Energy
·
2022
·
IF 19.069
Linlin Zhou,Tao Yang,Zhi Fang,Jiadong Zhou,Yapeng Zheng,Chunyu Guo,Laipan Zhu,Enhui Wang,Xinmei Hou,Kuo-Chih Chou,Zhong Lin Wang
Piezoelectric polarization promoted photoelectrochemical (PE-PEC) water splitting is a promising strategy to obtain hydrogen energy by converting light, kinetic, and electrical energy into chemical energy . However, novel piezoelectric semiconductors are urgently needed owing to the improper band positions and poor stability of most current piezoelectric materials . In this work, a method of inducing piezopotential in N doped 4H-SiC nanohole arrays (NHAs) for water splitting is proposed. The modulation effects of N doping with various contents on the electronic structure and piezoelectricity of 4H-SiC are comprehensively analyzed. By introducing piezoelectric field to regulate transport behavior of charges, the current density of NHAs reaches 6.50 mA cm −2 at 1.4 V Ag/AgCl , indicating a 50.1% enhancement compared with that without polarization (4.33 mA cm −2 at 1.4 V Ag/AgCl ). The conjunction mechanism of photoelectric catalytic capacity and piezoelectricity of N doped 4H-SiC NHAs is elaborated, providing powerful guidance for manufacturing piezoelectric semiconductor photoanodes in PE-PEC water splitting.
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2022
·Vol. 14
·期 21
·4704
·
IF 4.967
Jun Tang,Yali Tan,Fugang Qi,Biao Zhang,Ao Zhou,Nie Zhao,Xiaoping Ouyang
In air and railway transportation, corrosion and wear lead to the rapid failure of equipment. Epoxy (EP)-based coatings are widely used in research on the anti-corrosion of organic coatings, but their application as materials for wear resistance is limited due to their non-abrasive properties. In this study, a novel high-performance epoxy-based composite coating was developed through the self-assembly of silicon carbide (SiC) and graphene oxide (GO) and the tuning of the interfacial structure with epoxy resin. The coatings were comprehensively characterized, including their electrochemical behavior, a salt spray test, and friction and wear experiments, and the optimal addition ratio of SiC-G@GO (SiC-G@GO was prepared by the self-assembly of γ-(2,3-epoxypropoxy) propytrimethoxysilane (KH560)-modified SiC (SiC-G) on the surface of GO sheets) in the epoxy coatings was explored. Benefiting from the labyrinth effect and their rolling-friction-like microstructure, the 1 wt% SiC-G@GO/EP coating exhibits excellent wear and corrosion resistance. Compared with pure epoxy resin, the 1 wt% SiC-G@GO/EP coating increased by 4 orders of magnitude after 10 days of immersion. The average friction coefficient was 41.5% lower than that of the pure EP coating, and the wear rate was 56.6% lower. This research has positive implications for the development and application of anti-corrosion and wear-resistant organic coatings.Keywords:corrosion resistance;tribological properties;composite material;organic coatings;interface regulation
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Yanghui Liu,Jian Zhou,Zhangbin Ji,Fengling Zhuo,Shengyu Wen,Yiqin Chen,YongQing Fu,Huigao Duan
Humidity sensing and water molecule monitoring have become hot research topics attributed to their potential applications in monitoring breathing/physiological conditions of humans, air conditioning in greenhouses, and soil moisture in agriculture. However, there is a huge challenge for highly sensitive and precision humidity detection with wireless and fast responsive capabilities. In this work, a hybrid/synergistic strategy was proposed using a LiNbO3/SiO2/SiC heterostructure to generate shear-horizontal (SH) surface acoustic waves (SAWs) and using a nanocomposite of polyethylenimine-silicon dioxide nanoparticles (PEI-SiO2 NPs) to form a sensitive layer, thus achieving an ultrahigh sensitivity of SAW humidity sensors. Ultrahigh frequencies (1∼15 GHz) of SAW devices were obtained on a high-velocity heterostructure of LiNbO3/SiO2/SiC. Among the multimodal wave modes, we selected SH waves for humidity sensing and achieved a high mass-sensitivity of 5383 MHz · mm2 · μg–1. With the PEI-SiO2 NP composite as the sensitive layer, an ultrahigh sensitivity of 2.02 MHz/% RH was obtained, which is two orders of magnitude higher than those of the conventional SAW humidity sensors (∼202.5 MHz frequency) within a humidity range of 20–80% RH.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）