IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-10-20 DOI: 10.3103/S1063457625050065

Xue Mao-chao

{"title":"Preparation and Mechanical Wear Behavior of MoSi2–Al2O3 Composite","authors":"Xue Mao-chao","doi":"10.3103/S1063457625050065","DOIUrl":"10.3103/S1063457625050065","url":null,"abstract":"Using MoO3, Mo, Al and Si powders as raw materials, MoSi2 and MoSi2–Al2O3 composite were prepared by mechanochemical reduction and hot press sintering techniques. The microstructure and dry sliding wear behavior of the samples were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and a ball-on-disk reciprocating tribometer. The results showed that MoSi2–Al2O3 composite has a fine microstructure, high hardness (13.4 GPa) and fracture toughness (7.2 MPa m0.5) compared to the pure MoSi2 material. The wear test results indicated that MoSi2 and MoSi2–Al2O3 composite exhibited good tribological properties against sliding GCr15 steel balls under different loads. The friction coefficient and wear rates of the samples decreased as the applied load increased. Compared to pure MoSi2, MoSi2–Al2O3 composite exhibited better wear resistance due to its high hardness, fracture toughness and good surface lubrication characteristics. The dominant wear mechanisms of the composite were adhesion, tribo-oxidation, plastic deformation and spalling.","PeriodicalId":670,"journal":{"name":"Journal of Superhard Materials","volume":"47 5","pages":"370 - 379"},"PeriodicalIF":1.2,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145327659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A Review on Ternary Compounds of High Boron Transition Metals as Hardness Materials 高硼过渡金属三元化合物作为硬度材料的研究进展

IF 1.2 4区材料科学

Journal of Superhard Materials Pub Date : 2025-10-20 DOI: 10.3103/S1063457625050107

G. Shwetha, Thirupathi Gadipelly

引用次数: 0

Controllable Growth of Calcium Carbonate Nanocrystals on Collagen-Modified Polyethylene Separators with High Ionic Transport Efficiency and Stable Cycling. 具有高离子传输效率和稳定循环的胶原修饰聚乙烯隔膜上碳酸钙纳米晶的可控生长。

IF 9.5 2区材料科学

ACS Applied Materials & Interfaces Pub Date : 2025-10-20 DOI: 10.1021/acsami.5c15246

Yin Liu,Weijian Fang,Zhuozhi Zheng,Hao Xie,Hao Wang,Weimin Wang,Hang Ping,Zhengyi Fu

{"title":"Controllable Growth of Calcium Carbonate Nanocrystals on Collagen-Modified Polyethylene Separators with High Ionic Transport Efficiency and Stable Cycling.","authors":"Yin Liu,Weijian Fang,Zhuozhi Zheng,Hao Xie,Hao Wang,Weimin Wang,Hang Ping,Zhengyi Fu","doi":"10.1021/acsami.5c15246","DOIUrl":"https://doi.org/10.1021/acsami.5c15246","url":null,"abstract":"The commercial microporous polyethylene (PE) separators generally exhibit low thermal stability, poor electrolyte wettability, and significant safety concerns. Drawing inspiration from the formation process of biominerals, a collagen layer is first self-assembled on the PE separator surface to form a cross-linked network coating. Subsequently, the collagen matrix is mineralized with calcium carbonate nanocrystals, which undergo oriented growth within the collagen fibrils, thereby generating a stable inorganic mineral layer on the PE substrate (Mc@CaCO3-PE). The organized structure markedly enhances the thermal stability and mechanical strength of the composite separator. Moreover, compared with conventional PE separators, it demonstrates superior electrolyte wettability, achieving an electrolyte absorption rate as high as 161.6%. Notably, the mineralized layer facilitates the sustained release of Ca2+ ions, which facilitates the desolvation process of Li+ ions. It not only increases the lithium-ion transference number (0.82) but also promotes the formation of a stable solid-electrolyte interphase (SEI). At a current density of 0.5 mA cm-2, Li||Li symmetric cells with a Mc@CaCO3-PE separator can be stably cycled for more than 1200 h. This composite separator shows great potential as a high-performance separator for lithium metal batteries, and this strategy provides valuable guidance for the development of other high-performance composite separators.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"352 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145331649","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

Grain Plastic Rearrangement for Fabricating Textured CaBi2Nb2O9-Based Ceramics with Superior Piezoelectricity. 晶粒塑性重排制备具有优异压电性的cabi2nb2o9基织构陶瓷。

IF 9.5 2区材料科学

ACS Applied Materials & Interfaces Pub Date : 2025-10-20 DOI: 10.1021/acsami.5c13481

Wei Shi,Ning Chen,Qi Hu,Shangyi Guan,Liang Xu,Jie Xing,Zhi Tan,Qiang Chen

{"title":"Grain Plastic Rearrangement for Fabricating Textured CaBi2Nb2O9-Based Ceramics with Superior Piezoelectricity.","authors":"Wei Shi,Ning Chen,Qi Hu,Shangyi Guan,Liang Xu,Jie Xing,Zhi Tan,Qiang Chen","doi":"10.1021/acsami.5c13481","DOIUrl":"https://doi.org/10.1021/acsami.5c13481","url":null,"abstract":"Bismuth layer-structured ferroelectrics (BLSFs) play an important role in high-temperature piezoelectric applications due to their high Curie temperature (TC) and excellent fatigue-resistant performance, while they have long faced the problem of insufficient piezoelectric properties. The phenomenological orientational average theory demonstrates that the [100]-oriented CaBi2N2O9 (CBN) ceramics can improve d33 of conventional ceramics by 77% via utilizing their strong in-plane piezoelectric response. Building on this finding, a seed-free hot forging technique is proposed to fabricate [100]-oriented textured CBN-based ceramics via grain plastic rearrangement at high temperatures. This method yields a textured CBN-based ceramic with a superior d33 of 26.7 pC/N, which is 53% higher than the standard ones. Remarkably, the d33 of textured CBN-based ceramics remains at 25.7 pC/N even after annealing at 900 °C. Our seed-free hot forging technique, which eliminates the need for grain templates, is significantly simpler than traditional template grain growth methods and holds significant potential for application across various BLSF ceramics. This work presents a cost-effective and straightforward approach to producing high-performance textured BLSF ceramics, marking a significant step forward in the development of high-temperature piezoelectric applications.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"17 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145331654","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 Polarization-Sensitive Photodetector Based on ReS2/MoWSe2 van der Waals Heterostructure. 基于ReS2/MoWSe2范德华异质结构的高性能偏振敏感光电探测器。

IF 9.5 2区材料科学

ACS Applied Materials & Interfaces Pub Date : 2025-10-20 DOI: 10.1021/acsami.5c16945

Zimeng He,Li Ding,Shaofei Li,Xing Xie,Shikun Hou,Jun He,Jian-Tao Wang,Zongwen Liu,Yanping Liu

{"title":"High-Performance Polarization-Sensitive Photodetector Based on ReS2/MoWSe2 van der Waals Heterostructure.","authors":"Zimeng He,Li Ding,Shaofei Li,Xing Xie,Shikun Hou,Jun He,Jian-Tao Wang,Zongwen Liu,Yanping Liu","doi":"10.1021/acsami.5c16945","DOIUrl":"https://doi.org/10.1021/acsami.5c16945","url":null,"abstract":"Anisotropic two-dimensional (2D) materials offer a compelling platform for polarized light detection owing to their intrinsic polarization-sensitive optoelectronic responses. However, devices based on single materials often suffer from limited responsivity, narrow spectral coverage, and elevated noise levels. Here we report a high-performance, polarization-sensitive photodetector based on a van der Waals heterostructure composed of anisotropic ReS2 and a ternary MoWSe2 alloy. This design couples the polarization-dependent optical response of ReS2 with the low-defect and highly efficient absorption of MoWSe2, achieving a markedly high detectivity of 3.78 × 1014 Jones and a noticeable polarization ratio of 11.3 under zero or small negative bias. The built-in electric field of the junction effectively suppresses dark current and separates photogenerated carriers rapidly, making the device capable of broadband detection from the visible (405 nm) to near-infrared (1064 nm) spectrum. Under forward bias, the device transitions to a photoconductive regime, achieving a responsivity of 23.22 A/W. These findings highlight the potential of ReS2/MoWSe2 heterostructures as a versatile and scalable platform for broadband, low-noise, and polarization-resolved photodetection, offering a scalable route toward advanced optoelectronic technologies.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"11 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145331745","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

Thermo-Mechanically Driven Hierarchical Evolution in Polyurethane Elastomers Subjected to Compression Fatigue. 压缩疲劳下聚氨酯弹性体的热机械驱动分层演化。

IF 9.5 2区材料科学

ACS Applied Materials & Interfaces Pub Date : 2025-10-20 DOI: 10.1021/acsami.5c15391

Min Wang,Yushu Tian,Jihang Yu,Jiadong Wang,Guangzhi Jin,Xuan Qin,Yonglai Lu

{"title":"Thermo-Mechanically Driven Hierarchical Evolution in Polyurethane Elastomers Subjected to Compression Fatigue.","authors":"Min Wang,Yushu Tian,Jihang Yu,Jiadong Wang,Guangzhi Jin,Xuan Qin,Yonglai Lu","doi":"10.1021/acsami.5c15391","DOIUrl":"https://doi.org/10.1021/acsami.5c15391","url":null,"abstract":"Polyurethane elastomer (PUE) excels in demanding applications due to its outstanding mechanical properties and environmental tolerance. Under compressive fatigue, viscoelastic dissipation induces significant heat accumulation, driving complex thermo-mechanical coupling and microstructural evolution that ultimately leads to failure. However, the dynamic response of PUE's hierarchical structure under such conditions remains elusive. To address this, we designed PUEs with low (LP) and high (HP) degrees of microphase separation. Through synchronized temperature-field monitoring and multiscale characterization, we deciphered the thermo-mechanically driven hierarchical structural evolution under cyclic compression. Key findings reveal that LP suffers severe early-stage heat buildup, promoting hard segment rearrangement into disordered domains. Subsequently, spherulites deform into ellipsoids, fragment, and finally melt, causing structural collapse and a high compression set (17.2%). In contrast, HP's well-ordered hard-segment network effectively distributes stress via lamellar reorientation, followed by progressive spherulite fragmentation. This mechanism preserves structural integrity, resulting in a superior fatigue durability and a low compression set (6.2%). This study unveils the thermo-mechanical evolution pathways of PUE's hierarchy for the first time, establishing a fundamental structure-property relationship to guide the design of high-fatigue-resistance elastomers.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"211 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145331847","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

Correction: Synthesis of three-dimensional nitrogen-doped reduced graphene oxide catalyst with high activity in acidic 修正：合成三维氮掺杂还原性氧化石墨烯催化剂，在酸性条件下具有高活性

IF 4.1 3区材料科学

Nanoscale Research Letters Pub Date : 2025-10-20 DOI: 10.1186/s11671-025-04367-8

Min Cong Wu, Yue Yao, Xin Zhang