npj Materials Degradation最新文献_第9页

Author Correction: Compatibility of ethylene vinyl acetate (EVA)/ethylene vinyl alcohol (EVOH)/EVA films with gamma, electron-beam, and X-ray irradiation 作者更正：乙烯-醋酸乙烯（EVA）/乙烯-乙烯醇（EVOH）/EVA 薄膜与伽马射线、电子束和 X 射线辐照的兼容性

IF 5.1 2区材料科学

npj Materials Degradation Pub Date : 2024-01-29 DOI: 10.1038/s41529-024-00433-1

Yelin Ni, Tucker T. Bisel, Md Kamrul Hasan, Donghui Li, Witold K. Fuchs, Scott K. Cooley, Larry Nichols, Matt Pharr, Nathalie Dupuy, Sylvain R. A. Marque, Mark K. Murphy, Suresh D. Pillai, Samuel Dorey, Leonard S. Fifield

引用次数: 0

Corrosion behavior of laser powder bed fusion additive manufacturing produced TiNi alloy by micro-arc oxidation 激光粉末床熔融增材制造生产的 TiNi 合金的微弧氧化腐蚀行为

IF 5.1 2区材料科学

npj Materials Degradation Pub Date : 2024-01-25 DOI: 10.1038/s41529-024-00430-4

Xin Zhao, Yicheng Liu, Chenfan Jia, Hao Chang, Wei Zhang, Yun Bai, Shujun Li, Lai-Chang Zhang, Wei Yuan

{"title":"Corrosion behavior of laser powder bed fusion additive manufacturing produced TiNi alloy by micro-arc oxidation","authors":"Xin Zhao, Yicheng Liu, Chenfan Jia, Hao Chang, Wei Zhang, Yun Bai, Shujun Li, Lai-Chang Zhang, Wei Yuan","doi":"10.1038/s41529-024-00430-4","DOIUrl":"10.1038/s41529-024-00430-4","url":null,"abstract":"To improve the corrosion resistance of TiNi alloy fabricated by laser powder bed fusion (LPBF), a porous oxidation layer was synthesized by micro-arc oxidation in a sodium aluminate and sodium silicate electrolyte. The influences of the applied voltage and the processing time on the morphology of oxidation layer were investigated, and the corrosion behavior of the oxidation layer in artificial saliva was evaluated and compared with that of the as-fabricated LPBF alloy. The results indicate that, as increasing the applied voltage and the processing time, the oxidation layer becomes uniform and integrated. The optimum parameters are with an applied voltage of 450 V and processing time of 40 min. The oxidation layer primarily contains α-Al2O3 and consists of two layers, i.e., a thin, compact and uniform inner layer and a porous outer layer. The formation of stable α-Al2O3 phase in the coating and its almost non-porous dense structure reduce the channels for corrosion ions to penetrate into the substrate through coating, thereby improving the corrosion resistance of TiNi alloy.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41529-024-00430-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139581128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Buffer induced ionically crosslinked polyelectrolyte treatment for self-extinguishing polyester 用于自熄聚酯的缓冲诱导离子交联聚电解质处理技术

IF 5.1 2区材料科学

npj Materials Degradation Pub Date : 2024-01-25 DOI: 10.1038/s41529-024-00432-2

Dallin L. Smith, Natalie A. Vest, Miguel O. Convento, Maya D. Montemayor, Jaime C. Grunlan

引用次数: 0

Author Correction: Galvanic corrosion behavior of welded joint in marine atmosphere environment based on capillary microcell 作者更正：基于毛细管微电池的海洋大气环境中焊接接头的电化学腐蚀行为

IF 5.1 2区材料科学

npj Materials Degradation Pub Date : 2024-01-23 DOI: 10.1038/s41529-024-00434-0

Xinyu Wang, Feng Huang, Qian Hu, Jiawei Zhang, Jing Liu

引用次数: 0

Machine learning assisted discovery of high-efficiency self-healing epoxy coating for corrosion protection 机器学习辅助发现用于防腐的高效自修复环氧涂料

IF 5.1 2区材料科学

npj Materials Degradation Pub Date : 2024-01-19 DOI: 10.1038/s41529-024-00427-z

Tong Liu, Zhuoyao Chen, Jingzhi Yang, Lingwei Ma, Arjan Mol, Dawei Zhang

{"title":"Machine learning assisted discovery of high-efficiency self-healing epoxy coating for corrosion protection","authors":"Tong Liu, Zhuoyao Chen, Jingzhi Yang, Lingwei Ma, Arjan Mol, Dawei Zhang","doi":"10.1038/s41529-024-00427-z","DOIUrl":"10.1038/s41529-024-00427-z","url":null,"abstract":"Machine learning is a powerful means for the rapid development of high-performance functional materials. In this study, we presented a machine learning workflow for predicting the corrosion resistance of a self-healing epoxy coating containing ZIF-8@Ca microfillers. The orthogonal Latin square method was used to investigate the effects of the molecular weight of the polyetheramine curing agent, molar ratio of polyetheramine to epoxy, molar content of the hydrogen bond unit (UPy-D400), and mass content of the solid microfillers (ZIF-8@Ca microfillers) on the low impedance modulus (lg|Z|0.01Hz) values of the scratched coatings, generating 32 initial datasets. The machine learning workflow was divided into two stages: In stage I, five models were compared and the random forest (RF) model was selected for the active learning. After 5 cycles of active learning, the RF model achieved good prediction accuracy: coefficient of determination (R2) = 0.709, mean absolute percentage error (MAPE) = 0.081, root mean square error (RMSE) = 0.685 (lg(Ω·cm2)). In stage II, the best coating formulation was identified by Bayesian optimization. Finally, the electrochemical impedance spectroscopy (EIS) results showed that compared with the intact coating ((4.63 ± 2.08) × 1011 Ω·cm2), the |Z|0.01Hz value of the repaired coating was as high as (4.40 ± 2.04) × 1011 Ω·cm2. Besides, the repaired coating showed minimal corrosion and 3.3% of adhesion loss after 60 days of neutral salt spray testing.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41529-024-00427-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139504612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The corrosion mechanism of lead-glazed pottery in Han dynasty 汉代铅釉陶的腐蚀机理

IF 5.1 2区材料科学

npj Materials Degradation Pub Date : 2024-01-18 DOI: 10.1038/s41529-024-00428-y

Kexin Zhang, Chen Wu, Jing Zhao, Wendi Yu, Meng Zhao

{"title":"The corrosion mechanism of lead-glazed pottery in Han dynasty","authors":"Kexin Zhang, Chen Wu, Jing Zhao, Wendi Yu, Meng Zhao","doi":"10.1038/s41529-024-00428-y","DOIUrl":"10.1038/s41529-024-00428-y","url":null,"abstract":"Ancient pottery, having endured prolonged burial in soil, invariably underwent the process of glaze corrosion. The micromorphology and structural composition of four lead-glazed pottery fragments dating back to the Han Dynasty, excavated in the Qinhan New Town within Xixian New area of Xi’an are elucidated by comprehensive analysis method. The results reveal that the corrosion products predominantly comprised PbCO3, Pb3(PO4)2, CaCO3, and Ca3(PO4)2. Concurrently, the presence of organic substances exhibiting characteristic self-excitation fluorescence in the cracks of the sample is identified through fluorescence microscopy and Fourier infrared spectroscopy. Through a comparative analysis of well-preserved and severely corroded samples, taking into account compositional analysis, observations of corrosion morphology, and the characteristics of corrosion products, it is deduced that the primary corrosion mechanisms involve chemical corrosion, microbial corrosion, and crack corrosion. This study provides a comprehensive depiction of glaze corrosion process inherent to lead-glazed pottery and establishes corresponding corrosion models.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41529-024-00428-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139494618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exfoliation of an extruded Mg-4Li-1Ca alloy in presence of glucose and bovine serum albumin 葡萄糖和牛血清白蛋白存在下挤压成型的 Mg-4Li-1Ca 合金的剥离作用

IF 5.1 2区材料科学

npj Materials Degradation Pub Date : 2024-01-17 DOI: 10.1038/s41529-024-00425-1

Lei Cai, Mei-Qi Zeng, Meng-Jie Liu, Jing-Yu Bao, Yu-Qian Ren, M. Bobby Kannan, Lan-Yue Cui, Cheng-Bao Liu, Fen Zhang, Shuo-Qi Li, Rong-Chang Zeng

{"title":"Exfoliation of an extruded Mg-4Li-1Ca alloy in presence of glucose and bovine serum albumin","authors":"Lei Cai, Mei-Qi Zeng, Meng-Jie Liu, Jing-Yu Bao, Yu-Qian Ren, M. Bobby Kannan, Lan-Yue Cui, Cheng-Bao Liu, Fen Zhang, Shuo-Qi Li, Rong-Chang Zeng","doi":"10.1038/s41529-024-00425-1","DOIUrl":"10.1038/s41529-024-00425-1","url":null,"abstract":"Exfoliation corrosion (EFC) on extruded Mg-4Li-1Ca alloys as bone implant materials has not been reported. This study aimed to elucidate the degradation mechanism of a corrosion type-exfoliation occurred on an extruded Mg-4Li-1Ca alloy under the interaction of glucose (Glu) and bovine serum albumin (BSA) in Hank’s solution. The alloy microstructure, chemical composition, texture, stress distribution and Volta potential maps were characterized using metallographic microscopy, scanning electron microscopy and electron backscattered diffraction, and scanning Kelvin Probe. The alloy corrosion behavior was investigated via electrochemical testing and hydrogen evolution rate methods. X-ray diffraction, Fourier transform infrared spectrometry, X-ray photoelectron spectrometer, and fluorescence microscopy were used to analyze the corrosion products and the adsorption of the organic molecules. The experimental results indicated that the anodic second phase (Mg2Ca) were distributed in lamellar and rod-like patterns along the extrusion direction of the alloy, a lower Volta potential for Mg2Ca, texture and residual stresses also promote EFC. An increase in Glu concentration exacerbated the EFC, whereas BSA inhibited the EFC of the alloy. Higher Glu concentrations in BSA in turn inhibited EFC since Glu can complex with amino acids in proteins to form Glu-amino acid amides, which promoted protein adsorption and thereby forming a dense protective film on the alloy surface. The preferential dissolution of the Mg2Ca phase particles led to the complexation and adsorption of Glu and protein. This study enriches the understanding of the corrosion types in biomedical Mg-4Li-1Ca alloy and paving the way for enhancing the EFC resistance of the alloy.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41529-024-00425-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139480558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of radiation on borosilicate glass leaching behaviors 辐射对硼硅玻璃浸出行为的影响

IF 5.1 2区材料科学

npj Materials Degradation Pub Date : 2024-01-17 DOI: 10.1038/s41529-024-00426-0

Kemian Qin, Buyun Zhang, Zhaoxuan Jin, Yuchuan Wang, Yuhe Pan, Yuqian Sun, Kai Bai, Shikun Zhu, Tieshan Wang, Haibo Peng

{"title":"Influence of radiation on borosilicate glass leaching behaviors","authors":"Kemian Qin, Buyun Zhang, Zhaoxuan Jin, Yuchuan Wang, Yuhe Pan, Yuqian Sun, Kai Bai, Shikun Zhu, Tieshan Wang, Haibo Peng","doi":"10.1038/s41529-024-00426-0","DOIUrl":"10.1038/s41529-024-00426-0","url":null,"abstract":"Vitrification is widely recognized as a promising method for the geological disposal of high-level radioactive waste (HLW) worldwide. To ensure the safe disposal of radioactive waste, the borosilicate glass that vitrifies HLW must exhibit exceptional water resistance to prevent the possibility of groundwater corrosion and subsequent radioactive leaks. Radiation might change the water resistance of borosilicate glass. A series of zirconium-containing borosilicate glass with an irradiation dose of 0.3 dpa were utilized to examine the radiation effect on glass-water interaction. Scanning electron microscopy (SEM), Time-of-Flight Secondary ion mass spectrometry (ToF-SIMS), X-ray photoelectron spectroscopy (XPS), Inductively Coupled Plasma Optical Emission spectroscopy (ICP-OES) and Fourier transform infrared spectroscopy (FTIR) were used to investigate the leaching behavior of the non- and irradiated samples. The depth profile of the leached samples implied the interdiffusion dominated glass-water interaction. The results from FTIR and ICP-OES indicated that, after irradiation, the initial leaching rate increased by threefold. Additionally, the impact of different zirconium contents on the water resistance of borosilicate glass was also presented.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41529-024-00426-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139489195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Attain insensitivity to chlorine ions in magnesium alloys by impeding the diffusion process 通过阻碍扩散过程实现对镁合金中氯离子的不敏感性

IF 5.1 2区材料科学

npj Materials Degradation Pub Date : 2024-01-13 DOI: 10.1038/s41529-023-00423-9

Yuyang Chen, Guodong Fan, Xinchen Xu, Yiwen Chen, Tao Ying, Yangxin Li, Hong Zhu, Wanting Sun, Yang Gao, Zongyang Yang, Weiwei Song, Xiaoqin Zeng

引用次数: 0

Synthesis of UV-resistant and colorless polyimide films for optoelectrical applications 合成用于光电应用的抗紫外线无色聚酰亚胺薄膜

IF 5.1 2区材料科学

npj Materials Degradation Pub Date : 2024-01-11 DOI: 10.1038/s41529-023-00422-w

Le Xi, Yadong Lv, Jiabao Feng, Yanyan Huang, Yajiang Huang, Qi Yang, Guangxian Li, Miqiu Kong

{"title":"Synthesis of UV-resistant and colorless polyimide films for optoelectrical applications","authors":"Le Xi, Yadong Lv, Jiabao Feng, Yanyan Huang, Yajiang Huang, Qi Yang, Guangxian Li, Miqiu Kong","doi":"10.1038/s41529-023-00422-w","DOIUrl":"10.1038/s41529-023-00422-w","url":null,"abstract":"Due to their excellent mechanical properties and intrinsic flexibility, polyimides (PIs) are promising candidates for optoelectrical applications under harsh conditions such as flexible organic solar cells as well as flexible smart windows, etc. Much progress has been made on their optical transmittance; however, there remain significant concerns about their environmental stability, particularly their UV resistance. Herein, 4 types of colorless polyimides (CPIs) with different molecular structures containing trifluoromethyl, ethers, or fluorenes are carefully designed, and the dependence of their UV resistance on structures is explored systematically. It is found that the introduction of isopropylidene, ethers and fluorenes effectively enhances the UV resistance of CPI and its initial performance (optical transparency, thermal stability, and toughness) simultaneously as a result of the subtle manipulation of the conjugation structures. Specifically, the optimized polyimide film shows decent optical properties ( $${T}_{550{rm{nm}}}$$ ~ 88%, yellowness index ~3.26), and thermal stability ( $${T}_{5 % }$$ ~ 503 °C in N2 atmosphere, $${T}_{{rm{g}}}$$ ~ 312 °C). Moreover, after high-intensity UV irradiation, CPI not only maintains over 90% of mechanical properties but also retains excellent optical properties ( $${T}_{550{rm{nm}}}$$ ~ 88%) and thermal stability ( $${T}_{5 % }$$ ~ 506 °C). The design strategy paves the way for enhancing the durability of PIs for energy conversion and electronic applications resisting harsh conditions.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41529-023-00422-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139431130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0