Article
Materials Science, Ceramics
Bhavesh Ganesan, P. Hariharan, Durgalakshmi Dhinasekaran
Summary: This study investigated the hot corrosion resistance of nanostructured GZ TBCs under three different salt mixture environments, showing that EB-PVD coated GZ TBCs can enhance hot corrosion resistance but may experience spallation or weight gain under certain conditions. Microcracks found in the SM2 condition could lead to molten salt infiltration at the coating interface. The formation of dense corrosive products GdVO4 and m-ZrO2 phases after hot corrosion in SM1 and SM3 conditions, absent in SM2 condition, were identified.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Coatings & Films
Mohadese Tabeshfar, Mehdi Salehi, Ghasem Dini, Paul Inge Dahl, Mari-Ann Einarsrud, Kjell Wiik
Summary: Gd2Zr2O7 ceramic is a potential candidate for thermal barrier coatings, and the Gd2Zr2O7 + 50 wt% YbSZ (GZO/YbSZ) coating showed the best hot corrosion resistance. Investigation of fracture toughness, phase formation, and chemical composition changes provided insights into the hot corrosion behavior of the coatings, highlighting the importance of reduced reactivity and enhanced fracture toughness for improved performance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
P. Soltani, A. Keyvani, M. Bahamirian
Summary: In this research, a novel dual-layer TBC (CSZ/MAC) was developed and compared with a single-layer CSZ in terms of hot corrosion resistance. The results showed a significant difference between the two coatings, with the dual-layer TBC exhibiting better resistance. The improved performance can be attributed to the low diffusion of aggressive molten salt and the formation of hot corrosion products.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Yong Xiang, Kai Yan, Haiyuan Yu, Yuwei Guo, Yuxi Ying, Zhenrui Li, Jian Sun, Chaogang Fang
Summary: In this study, 5.2Gd2O3-5.6Yb2O3-9.5Y2O3 co-doped ZrO2 (GdYb-YSZ) double-ceramic-layer (DCL) thermal barrier coatings (TBCs) were prepared by atmospheric plasma spraying (APS). The hot corrosion behavior and failure mechanism of the GdYb-YSZ DCL and single-layer YSZ TBCs were compared under the Na2SO4+V2O5 molten salts. The GdYb-YSZ DCL coating exhibited a better resistance to crack propagation and a significantly longer corrosion lifetime than the YSZ coating, which was attributed to the protective effect of the upper GdYb-YSZ layer.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Christoph Mikulla, Lars Steinberg, Philipp Niemeyer, Uwe Schulz, Ravisankar Naraparaju
Summary: Rare-earth zirconates have been proven effective in preventing CMAS attack on thermal barrier coatings by forming quick crystalline reaction products. This study explores the microstructural effects of Electron Beam-Physical Vapor Deposition gadolinium zirconate (EB-PVD GZO) on CMAS attack and identifies a refined microstructure with smaller intercolumnar gaps and long feather arms that lowers CMAS infiltration by 56% to 72%. The garnet phase, forming as a continuous layer on top of apatite and fluorite, is found to improve CMAS resistance.
Article
Materials Science, Multidisciplinary
Muhammad Jahangir Khan, Grzegorz Moskal, Amjad Iqbal, Marta Mikuskiewicz, Tomasz Pawlik, Piotr Olesik
Summary: Zirconates of rare earth elements are promising materials for thermal barrier coatings. This study investigates the hot corrosion resistance of single-layered ceramic coatings composed of Gd2Zr2O7, Sm2Zr2O7, and Nd2Zr2O7. The coatings were subjected to corrosive environments created by pure magnesium sulfate (MgSO4) salt and a mixture of Na2SO4 and MgSO4. Despite the aggressive nature of the corrosive environment, the rare earth zirconates demonstrated satisfactory resistance to hot corrosion, with Sm2Zr2O7 and Nd2Zr2O7 exhibiting better corrosion resistance compared to Gd2Zr2O7.
Article
Materials Science, Multidisciplinary
Jhonattan De la Roche, Juan Manuel Alvarado-Orozco, Alejandro Toro
Summary: The study discovered that high salt concentration in Na2SO4/V2O5 salt mixtures led to high destabilization of the t'-YSZ phase and formation of YVO4 products. At higher temperatures, the mass loss of YSZ samples varied with testing temperature, with the major destabilization of tetragonal phase occurring at 900 degrees C.
Article
Materials Science, Multidisciplinary
Bo Wang, Chengyang Jiang, Ye Chen, Xunuo Lang, Jian He, Hongbo Guo, Yuting Wu, Lulu Pan
Summary: Three types of (Gd0.8Yb0.2)2Zr2O7 (GYbZ)/YSZ double ceramic layer thermal barrier coatings (TBCs) with different microstructures were prepared using electron beam physical vapor deposition. The CMAS corrosion performance of these TBCs was studied and it was found that the microstructure strongly influenced the CMAS corrosion resistance. TBCs with smaller inter-column gaps and larger specific surface area exhibited superior CMAS corrosion performance.
Article
Materials Science, Coatings & Films
Kun Huo, Haoqi Wu, Jie Cai, Yunxia Ye, Yinqun Hua, Fengze Dai
Summary: In this study, yttria-stabilized zirconia was glazed for the first time using an ultraviolet picosecond ultrashort pulse laser. The laser micro glazing process resulted in a smooth surface layer with extremely narrow cracks, improving the material's resistance to molten salt corrosion. This study also demonstrated the positive effects of grain refinement on the thermal stabilization and self-healing abilities of the glazing layer.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Jhonattan de la Roche, Juan Manuel Alvarado-Orozco, Pablo Andres Gomez, Irene Garcia Cano, Sergi Dosta, Alejandro Toro
Summary: The hot corrosion resistance of bilayer thermal barrier coatings composed of dense CYSZ and YSZ was evaluated. The CYSZ layer acted as a barrier against corrosion, but the presence of vertical cracks during coating deposition affected its resistance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Kun Huo, Fengze Dai, Wei Qian, Yunxia Ye, Jie Cai, Yinqun Hua, Xiaofeng Zhang
Summary: In this study, yttria-stabilized zirconia coatings were modified by laser micro glazing. Multiple laser irradiation was found to effectively eliminate pores in the coatings and improve their resistance to molten salt corrosion.
Article
Materials Science, Multidisciplinary
Liang Li, Lanfeng Li, Guofeng Zhang, Hongdi Xue, Maomao Cui, Wenxu Wang, Dexue Liu
Summary: This study investigates the corrosion behavior of Inconel 625 in a molten salt system of sodium sulfate and vanadium pentoxide. Various techniques including X-ray diffraction, scanning electron microscopy, and energy-dispersive spectroscopy were used to analyze the corrosion products, microstructure, and element distribution. The study reveals that corrosion of the alloy increases over time and the formation of CrVO4 and Ni3V2O8 occurs after exposure to the salt bath. The intrusion of sulfur element leads to the formation of internal sulfides, accelerating intergranular and intracrystalline corrosion.
Article
Materials Science, Ceramics
Xingyu Fan, Runjun Sun, Jie Dong, Liang Wei, Qiushi Wang
Summary: The effects of sintering additives on the hot corrosion behavior of gamma-Y2Si2O7 ceramics in Na2SO4 + V2O5 molten salts were systematically investigated, with Al2O3 additive showing the best chemical stability due to its compact microscopic network structure. Apparent activation energy for hot corrosion reaction in different molten salt compositions was also calculated.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Kristyn Ardrey, Helge Heinrich, Elizabeth Opila
Summary: Yttrium-silicates (Y2Si2O7 and Y2SiO5) are potential environmental barrier coating (EBC) materials for silicon carbide ceramic matrix composites (SiC-CMCs). While their resistance to high temperatures, high-velocity steam, and siliceous debris is well studied, the mechanisms of Na2SO4-induced hot corrosion are not fully understood. This study reveals a previously unknown damage mechanism in which water-soluble Y and Na-Y sulfates and oxysulfates react with Na2SO4, causing significant damage to the yttrium-silicate EBCs materials.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Shiliang Luan, Shuai Zhang, Ke Ren, Baosheng Xu, Yiguang Wang
Summary: The hot corrosion behavior of multialkaline-earth aluminosilicate Ba1/3Sr1/3Ca1/3Al2Si2O8 (BSCAS) in an Na2SO4 environment at temperatures ranging from 900 to 1100 degrees C over a period of 100 hours was studied. The phase and cross-sectional morphology evolutions of the corroded samples were characterized using X-ray diffraction and scanning electron microscopy. The competitive out-diffusion of alkaline-earth elements and the formation of a dense Ca2Al2SiO7 layer contribute to the improvement in the hot corrosion resistance of BSCAS.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Mengxian Zhang, Wenjuan Fan, Binglin Zou, Ying Wang, Xiaolong Cai, Chunjie Wang, Xin Zhou, Xueqiang Cao
JOURNAL OF ALLOYS AND COMPOUNDS
(2017)
Article
Chemistry, Applied
Junbin Sun, Jinshuang Wang, Wenzhi Huang, Yu Hui, Xin Zhou, Lifen Li, Jianing Jiang, Longhui Deng, Yunya Niu, Shujuan Dong, Xueqiang Cao
JOURNAL OF RARE EARTHS
(2017)
Article
Materials Science, Multidisciplinary
Cunyan Fan, Binglin Zou, Ling Zhu, Wenjuan Fan, Xiaolong Cai, Ying Wang, Xueqiang Cao
MATERIALS & DESIGN
(2017)
Article
Materials Science, Ceramics
Junbin Sun, Jinshuang Wang, Xin Zhou, Shujuan Dong, Longhui Deng, Jianing Jiang, Xueqiang Cao
CERAMICS INTERNATIONAL
(2018)
Article
Materials Science, Ceramics
Xiong Yang, Jinyan Zeng, Hao Zhang, Jinshuang Wang, Junbin Sun, Shujuan Dong, Jianing Jiang, Longhui Deng, Xin Zhou, Xueqiang Cao
CERAMICS INTERNATIONAL
(2018)
Article
Materials Science, Ceramics
Jinshuang Wang, Junbin Sun, Jieyan Yuan, Qiangshan Jing, Shujuan Dong, Bing Liu, Hao Zhang, Longhui Deng, Jianing Jiang, Xin Zhou, Xueqiang Cao
CERAMICS INTERNATIONAL
(2018)
Article
Chemistry, Physical
Junbin Sun, Jinshuang Wang, Shujuan Dong, Yu Hui, Lifen Li, Longhui Deng, Jianing Jiang, Xin Zhou, Xueqiang Cao
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Chemistry, Physical
Jinshuang Wang, Junbin Sun, Hao Zhang, Shujuan Dong, Jianing Jiang, Longhui Deng, Xin Zhou, Xueqiang Cao
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Chemistry, Physical
Jieyan Yuan, Junbin Sun, Jinshuang Wang, Hao Zhang, Shujuan Dong, Jianing Jiang, Longhui Deng, Xin Zhou, Xueqiang Cao
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Materials Science, Ceramics
Xin Zhou, Jinshuang Wang, Jieyan Yuan, Junbin Sun, Shujuan Dong, Limin He, Xuegiang Cao
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2018)
Article
Materials Science, Ceramics
Jinshuang Wang, Junbin Sun, Qiangshan Jing, Bing Liu, Hao Zhang, Yongsheng Yu, Jieyan Yuan, Shujuan Dong, Xin Zhou, Xueqiang Cao
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2018)
Article
Materials Science, Ceramics
Junbin Sun, Jinshuang Wang, Xin Zhou, Yu Hui, Shujuan Dong, Lifen Li, Longhui Deng, Jianing Jiang, Xueqiang Cao
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2018)
Article
Materials Science, Ceramics
Wenjuan Fan, Binglin Zou, Cunyan Fan, Ying Wang, Xiaolong Cai, Shunyan Tao, Jiaying Xu, Chunjie Wang, Xuegiang Cao, Ling Zhu
CERAMICS INTERNATIONAL
(2017)
Article
Materials Science, Ceramics
Jinshuang Wang, Junbin Sun, Binglin Zou, Xin Zhou, Shujuan Dong, Lifen Li, Jianing Jiang, Longhui Deng, Xueqiang Cao
CERAMICS INTERNATIONAL
(2017)
Article
Materials Science, Multidisciplinary
Xin Zhou, Limin He, Xueqiang Cao, Zhenhua Xu, Rende Mu, Junbin Sun, Jieyan Yuan, Binglin Zou
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)
