Journal of The European Ceramic Society最新文献_第8页

Enhanced irradiation stability of BN particles dispersed SiC under pressurized-water reactor related conditions 氮化硼颗粒分散碳化硅在压水堆相关条件下辐照稳定性增强

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-09 DOI: 10.1016/j.jeurceramsoc.2025.117810

Jiali Chen , Bo Huang , Neng Pu , Yansong Zhong , Yiwei Liu , Tatsuya Hinoki , Lin Feng

{"title":"Enhanced irradiation stability of BN particles dispersed SiC under pressurized-water reactor related conditions","authors":"Jiali Chen , Bo Huang , Neng Pu , Yansong Zhong , Yiwei Liu , Tatsuya Hinoki , Lin Feng","doi":"10.1016/j.jeurceramsoc.2025.117810","DOIUrl":"10.1016/j.jeurceramsoc.2025.117810","url":null,"abstract":"<div><div>Neutron-induced radioactivity and response to atomic displacement damage of hexagonal boron nitride (h-BN) particles dispersed silicon carbide (SiC) materials prepared by liquid-phase sintering (LPS) were studied. These h-BN particles dispersed LPS-SiC materials are used as weak matrix for SiC<sub>f</sub>/SiC composites without interphase materials to improve the resistance to corrosion and to lower the cost of the SiC<sub>f</sub>/SiC composites. The Monte Carlo simulation results indicate that the LPS-SiC-20vol%BN composite with B as <sup>11</sup>B and N as <sup>15</sup>N exhibits acceptable neutron-induced radioactivity in the PWR-related environments. Monolithic LPS-SiC-20vol%BN specimens were then irradiated to PWR-related damage level (0.1/1/3 displacement per atom, dpa, at 300 °C) with 5.1 MeV Si<sup>2+</sup> ions. Addition of BN particles reduced the irradiation-induced swelling of LPS-SiC. Partial irradiation induced amorphization of h-BN, and partial phase transition of h-BN to c-BN were also found. This study is also helpful for understanding the irradiation effect of other composites containing BN.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117810"},"PeriodicalIF":6.2,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-entropy (Ta0.2Nb0.2Ti0.2Hf0.2Zr0.2)C-SiC ceramics: Achieving superior ablation resistance through SiC particle size optimization 高熵（Ta0.2Nb0.2Ti0.2Hf0.2Zr0.2）C-SiC陶瓷：通过优化SiC粒度实现优异的抗烧蚀性能

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-08 DOI: 10.1016/j.jeurceramsoc.2025.117800

Tianzhan Shen , Cuiyan Li , Haibo Ouyang , Mengyao He , Sirui Wu , Li Wang , Qianqian Chen , Yulei Zhang , Jian Wei

{"title":"High-entropy (Ta0.2Nb0.2Ti0.2Hf0.2Zr0.2)C-SiC ceramics: Achieving superior ablation resistance through SiC particle size optimization","authors":"Tianzhan Shen , Cuiyan Li , Haibo Ouyang , Mengyao He , Sirui Wu , Li Wang , Qianqian Chen , Yulei Zhang , Jian Wei","doi":"10.1016/j.jeurceramsoc.2025.117800","DOIUrl":"10.1016/j.jeurceramsoc.2025.117800","url":null,"abstract":"<div><div>To enhance ablation resistance in (Ta₀.₂Nb₀.₂Ti₀.₂Hf₀.₂Zr₀.₂)C–SiC (HEC–SiC) ceramics, the influence of SiC particle size on microstructure and ablation behavior was examined. With the addition of 20 wt% fine SiC particles, its relative density increases from 91.23 % to 97.79 %, and the grain size of the HEC phase decreased from 3.58 to 0.79 μm. The fine SiC particles facilitated the formation of a continuous SiC network, thereby enhancing the thermal conductivity from 6.94 to 22.35 W/mK. This enhanced thermal conductivity contributed to reducing the ablation temperature from 2358 to 1721 °C during the ablation. The HEC-SiC sample with 0.5 μm fine SiC particles added exhibits a mass and linear ablation rate of 0.05 mg/s and 0.67 µm/s. The superior ablation resistance can be attributed to the reduced ablation temperature, altering the preferential oxidation sequence. This change in preferential oxidation led to the formation of a compact oxide scale with a multi-layer structure.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117800"},"PeriodicalIF":6.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of printing and post-processing parameters for enhancing the high-strength of zirconia ceramics via direct ink writing 直接墨书写法提高氧化锆陶瓷高强度的印刷及后处理工艺参数研究

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-08 DOI: 10.1016/j.jeurceramsoc.2025.117802

Berfu Göksel , Mia Kovač , Erin Koos , Bart Van Meerbeek , Jozef Vleugels , Annabel Braem

{"title":"Investigation of printing and post-processing parameters for enhancing the high-strength of zirconia ceramics via direct ink writing","authors":"Berfu Göksel , Mia Kovač , Erin Koos , Bart Van Meerbeek , Jozef Vleugels , Annabel Braem","doi":"10.1016/j.jeurceramsoc.2025.117802","DOIUrl":"10.1016/j.jeurceramsoc.2025.117802","url":null,"abstract":"<div><div>Direct ink writing (DIW) of alumina-toughened zirconia (ATZ) and 3 mol% yttria-stabilized zirconia (3Y-TZP) enables fabrication of complex parts, not achievable by conventional methods, providing the printing parameters are optimized. This study investigates the influence of the nozzle diameter, printing strategy, humidity, line spacing and layer thickness on the quality of the printed material. The drying protocols were optimized and the printing parameters were correlated to the sintering shrinkage and density, mechanical performance and defect formation. Optimal results were obtained when printing at 95 % non-condensing relative humidity with a 75 % line spacing and layer thickness relative to the 200 µm nozzle, using a 90° raster angle and contour design. Drying was done at 30°C with a gradually reducing humidity from 95 % to 40 % over 7 days. Sintered ATZ and 3Y-TZP had densities of 98.4 ± 0.6 and 99.1 ± 1.8 % and characteristic strengths of 859 (m = 10.7) and 841 MPa (m = 4.4).</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117802"},"PeriodicalIF":6.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Equimolar multi-component doped (Sc0.25Ho0.25Er0.25Yb0.25)4Hf3O12 ceramic fabricated via ultrafast high-temperature sintering (UHS) for thermal barrier coatings: Thermophysical properties, high-temperature stability, and mechanical properties 超快高温烧结制备热障涂层用等摩尔多组分掺杂（Sc0.25Ho0.25Er0.25Yb0.25） 4hf3012陶瓷：热物理性能、高温稳定性和机械性能

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-08 DOI: 10.1016/j.jeurceramsoc.2025.117803

Fanwei Meng , Fuxing Ye , Yuan Yao , Ziqi Song

{"title":"Equimolar multi-component doped (Sc0.25Ho0.25Er0.25Yb0.25)4Hf3O12 ceramic fabricated via ultrafast high-temperature sintering (UHS) for thermal barrier coatings: Thermophysical properties, high-temperature stability, and mechanical properties","authors":"Fanwei Meng , Fuxing Ye , Yuan Yao , Ziqi Song","doi":"10.1016/j.jeurceramsoc.2025.117803","DOIUrl":"10.1016/j.jeurceramsoc.2025.117803","url":null,"abstract":"<div><div>Rising service temperature of advanced aero-engines necessitates the development of new thermal barrier coatings (TBCs) ceramic. This study presents a novel equimolar multi-component doped (Sc<sub>0.25</sub>Ho<sub>0.25</sub>Er<sub>0.25</sub>Yb<sub>0.25</sub>)<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> ceramic synthesized by ultrafast high-temperature sintering (UHS), systematically compared with single-component Er<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> ceramic. Results reveal that 4SH exhibited a 14.1 % lower thermal conductivity (1.76 W·m<sup>−1</sup>·K<sup>−1</sup>) compared to EH (2.05 W·m<sup>−1</sup>·K<sup>−1</sup>) at 1500 ℃. Notably, 4SH had a coefficient of thermal expansion (14.5 ×10<sup>−6</sup> 1/K, 1500 ℃) matched with the alloy substrate. Furthermore, 4SH possessed superior resistance to sintering, which retained 72.1 % pores after annealing at 1500 ℃ for 150 h, while EH retained 61.5 %. Finally, 4SH was determined as the ductile ceramic material. The excellent performances mainly attribute to controlled intergranular bonding, intense size disorder, and sluggish diffusion effect. Generally, the potential exists in 4SH to be further developed as a candidate for next-generation TBCs.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117803"},"PeriodicalIF":6.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phase evolution and magnetodielectric properties of Ba3Co2Fe24O41 hexaferrite after Bi2O3 incorporation Bi2O3掺入后Ba3Co2Fe24O41六铁体的相演化及磁介电性能

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-07 DOI: 10.1016/j.jeurceramsoc.2025.117801

Yanlin Ma , Yongyong Cao , Jie Li , Kui Liu , Yida Lei , Yang Xiao , Yingli Liu , Zhiyong Zhong

{"title":"Phase evolution and magnetodielectric properties of Ba3Co2Fe24O41 hexaferrite after Bi2O3 incorporation","authors":"Yanlin Ma , Yongyong Cao , Jie Li , Kui Liu , Yida Lei , Yang Xiao , Yingli Liu , Zhiyong Zhong","doi":"10.1016/j.jeurceramsoc.2025.117801","DOIUrl":"10.1016/j.jeurceramsoc.2025.117801","url":null,"abstract":"<div><div>Ba<sub>3</sub>Co<sub>2</sub>Fe<sub>24</sub>O<sub>41</sub> (Co<sub>2</sub>Z) is a hexagonal ferrite material in which achieving synergistic control of magnetic and dielectric properties in the MHz–GHz range remains a key challenge. This study explores the modulation of these properties in Co<sub>2</sub>Z through doping with highly polarizable Bi<sup>3 +</sup> ions. A combination of experimental analysis and first-principles calculations was used to investigate the effects of Bi<sup>3+</sup> doping on phase evolution, crystal structure, magnetic behavior, and dielectric response. The results show that Bi<sup>3+</sup> incorporation effectively lowers the synthesis temperature of the Z phase to approximately 1150°C and enhances both the magnetic permeability and permittivity of Co<sub>2</sub>Z. At a doping level of x = 0.3, Co<sub>2</sub>Z exhibits optimal impedance matching and a notable miniaturization factor for antenna substrates operating in the MHz–GHz range. These findings provide theoretical insights and practical guidance for the design of high-performance Co<sub>2</sub>Z-based materials for advanced antenna applications.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117801"},"PeriodicalIF":6.2,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-performance energy storage in tungsten bronze-based ferroelectric ceramics under low electric field 低电场条件下钨青铜基铁电陶瓷的高性能储能研究

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-04 DOI: 10.1016/j.jeurceramsoc.2025.117786

Wenjing Qiao , Xiaojie Lou , Yangfei Gao , Mei Bai , Dong Li , Lei Yang , Junbo Xu , Pengrong Ren

{"title":"High-performance energy storage in tungsten bronze-based ferroelectric ceramics under low electric field","authors":"Wenjing Qiao , Xiaojie Lou , Yangfei Gao , Mei Bai , Dong Li , Lei Yang , Junbo Xu , Pengrong Ren","doi":"10.1016/j.jeurceramsoc.2025.117786","DOIUrl":"10.1016/j.jeurceramsoc.2025.117786","url":null,"abstract":"<div><div>The utilization of a high entropy approach for the design of high-performance perovskite dielectric capacitors has been gaining much attention for the development of next-generation pulse power capacitors. This work develops a novel lead-free relaxor ferroelectric ceramic Gd<sub>0.03</sub>Ba<sub>0.47</sub>Sr<sub>0.485–1.5<em>x</em></sub>Bi<sub><em>x</em></sub>NbO<sub>6</sub> via Bi-doped in tungsten bronze structures, achieving breakthrough low-electric-field energy storage performance with a high recoverable energy density (<em>W</em><sub>rec</sub> = 2.57 J/cm<sup>3</sup>) and efficiency (<em>η</em> = 81.54 %) at 215 kV/cm—superior to most reported lead-free tungsten bronze-structured (TTB) (<em>W</em><sub>rec</sub>/E = 0.012 J cm<sup>−2</sup> kV<sup>−1</sup>). The enhanced properties originate from Bi<sup>3+</sup>-induced oxygen vacancy suppression and lattice distortion <em>γ</em> = 1.72), coupled with grain refinement (2.25 μm) that homogenizes electric fields. Remarkably, the material demonstrates exceptional stability under harsh conditions. Our work establishes a feasible paradigm for high-efficiency dielectric capacitors operable at low fields, showing significant potential for pulse power systems and miniaturized electronics.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117786"},"PeriodicalIF":6.2,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The characterisation of SiCf/SiC composites made by conventional and particle enhanced polymer infiltration pyrolysis 常规和颗粒增强聚合物渗透热解制备SiCf/SiC复合材料的表征

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-02 DOI: 10.1016/j.jeurceramsoc.2025.117789

Junquan Lao , Can Akaoglu , Kerui Wei , Han Liu , Philip J. Withers , Ping Xiao

{"title":"The characterisation of SiCf/SiC composites made by conventional and particle enhanced polymer infiltration pyrolysis","authors":"Junquan Lao , Can Akaoglu , Kerui Wei , Han Liu , Philip J. Withers , Ping Xiao","doi":"10.1016/j.jeurceramsoc.2025.117789","DOIUrl":"10.1016/j.jeurceramsoc.2025.117789","url":null,"abstract":"<div><div>The inclusion of silicon carbide particles (SiC<sub>P</sub>) into the precursor during polymer infiltration pyrolysis (PIP) has been shown to enhance the density and crystallinity of (SiC<sub>f</sub>/SiC) composites in an approach termed particle enhanced polymer infiltration pyrolysis (PEPIP). In this work, the microstructure and properties of composites fabricated via PEPIP and conventional PIP were compared. In both cases, the matrix contained two distinct microstructural regions: Type-A is an interconnected, stiff matrix phase comprising sub-micron grain 3C-SiC and is predominant in the PEPIP samples (88 vol%); while Type-B predominates in PIP samples (76 vol%) and is a compliant phase forming nanocrystalline 3C-SiC mixed with amorphous SiC<sub>x</sub>O<sub>y</sub>. The SiC<sub>P</sub> appear to break up the precursor aggregates during pyrolysis, creating finer pore channels between the fibres. This refines the microstructure, accelerating the decomposition of SiC<sub>x</sub>O<sub>y</sub> phase and thereby increasing the amount of Type-A phase, which increases the crystallinity and density of the SiC matrix.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117789"},"PeriodicalIF":6.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasma torch ablation performance of Ta0.8Hf0.2C-SiC gradient coating fabricated by LPPS and pack cementation for C/C composites LPPS复合材料Ta0.8Hf0.2C-SiC梯度涂层的等离子炬烧蚀性能

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-02 DOI: 10.1016/j.jeurceramsoc.2025.117792

ShaoPu Liu , Zhuang Ma , Yanbo Liu , Xinchun Tian , Shizhen Zhu , Ling Liu , Zhaowei Pan , Zhuohang Xie , Yaxin Wang

{"title":"Plasma torch ablation performance of Ta0.8Hf0.2C-SiC gradient coating fabricated by LPPS and pack cementation for C/C composites","authors":"ShaoPu Liu , Zhuang Ma , Yanbo Liu , Xinchun Tian , Shizhen Zhu , Ling Liu , Zhaowei Pan , Zhuohang Xie , Yaxin Wang","doi":"10.1016/j.jeurceramsoc.2025.117792","DOIUrl":"10.1016/j.jeurceramsoc.2025.117792","url":null,"abstract":"<div><div>The Ta<sub>0.8</sub>Hf<sub>0.2</sub>C solid solution inherits the outstanding oxidation and ablation resistance of both TaC and HfC, making it a promising material for ultra-high-temperature applications. In this work, a Ta<sub>0.8</sub>Hf<sub>0.2</sub>C-SiC gradient coating was fabricated on carbon/carbon (C/C) composites via pack cementation followed by low-pressure plasma spraying (LPPS). The resulting gradient coating exhibited outstanding ablation resistance under a plasma heat flux of 13 MW/m<sup>2</sup>, withstanding a peak surface temperature of 2670 ℃. Such outstanding ablation resistance is attributed to a combination of synergistic mechanisms, including: heat dissipation through the volatilization of Ta<sub>2</sub>O<sub>5</sub> and SiO<sub>2</sub>; defect sealing by a low-vapor-pressure Ta–Hf–Si–O glassy phase; structural anchoring by the high-melting Hf<sub>6</sub>Ta<sub>2</sub>O<sub>17</sub> skeleton; and the gradient distribution of Ta<sub>0.8</sub>Hf<sub>0.2</sub>C and SiC, which effectively mitigates thermal stress. This study provides a viable strategy for developing high-performance thermal protection coatings for hypersonic and re-entry aerospace applications.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117792"},"PeriodicalIF":6.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing the oxidation resistance of Nb superalloys at 1900 °C via in-situ formation of MoSi2/NbSi2/Nb5Si3 coatings 通过原位形成MoSi2/NbSi2/Nb5Si3涂层来增强铌高温合金在1900℃下的抗氧化性

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-02 DOI: 10.1016/j.jeurceramsoc.2025.117791

Man Wang , Chao Li , Cheng-Bin Zheng , Hui Dong , Guan-Jun Yang , Lin Chen

引用次数: 0

The crack formation, propagation and healing mechanisms of plasma sprayed multi-layer thermal/environmental barrier coatings during heat treatment 等离子喷涂多层热/环境屏障涂层热处理过程中裂纹的形成、扩展和愈合机制

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-02 DOI: 10.1016/j.jeurceramsoc.2025.117793

Gui Li , Jiayan Li , Longhui Deng , Jianing Jiang , Yan Huang , Shujuan Dong , Wenbo Chen , Ying Xiong , Yixing Zhang , Min Li , Wenjun Wang , Xueqiang Cao

{"title":"The crack formation, propagation and healing mechanisms of plasma sprayed multi-layer thermal/environmental barrier coatings during heat treatment","authors":"Gui Li , Jiayan Li , Longhui Deng , Jianing Jiang , Yan Huang , Shujuan Dong , Wenbo Chen , Ying Xiong , Yixing Zhang , Min Li , Wenjun Wang , Xueqiang Cao","doi":"10.1016/j.jeurceramsoc.2025.117793","DOIUrl":"10.1016/j.jeurceramsoc.2025.117793","url":null,"abstract":"<div><div>Si/Yb<sub>2</sub>Si<sub>2</sub>O<sub>7</sub>-Yb<sub>2</sub>SiO<sub>5</sub>/Yb<sub>2</sub>SiO<sub>5</sub>/LaMgAl<sub>11</sub>O<sub>19</sub> thermal and environmental barrier coatings (TEBCs) were fabricated on the SiC<sub>f</sub>/SiC using atmospheric plasma spraying. The thermal stability of coating was evaluated by thermogravimetric-differential scanning calorimetery. The phase and microstructure evolution of coating was investigated at 950 ℃-1350 ℃ to study the crack propagation and healing mechanisms of TEBCs during heat-treatment. Porosities and crack width of coating were characterized. The crystallization behavior and phase transformation were also investigated. The results indicated that viscous flow, phase transformation and solid-state sintering could be contributed to the crack healing in the TEBCs but the crack healing is limited. The formation of vertical crack in TEBCs is caused by bridging of crack in each layer. The crack continued to propagate and widen due to the release of thermal mismatch stress. The optimized heat treatment is about 1200 ℃, due to ratio of crack width to porosity of coating is lower than other temperature.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117793"},"PeriodicalIF":6.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0