Materials Letters: X最新文献_第9页

Growth of indium-incorporated κ-Ga2O3 thin film lattice-matched to the ε-GaFeO3 substrate ε-GaFeO3衬底晶格匹配掺铟κ-Ga2O3薄膜的生长

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100149

Hiroyuki Nishinaka , Osamu Ueda , Noriaki Ikenaga , Noriyuki Hasuike , Masahiro Yoshimoto

{"title":"Growth of indium-incorporated κ-Ga2O3 thin film lattice-matched to the ε-GaFeO3 substrate","authors":"Hiroyuki Nishinaka , Osamu Ueda , Noriaki Ikenaga , Noriyuki Hasuike , Masahiro Yoshimoto","doi":"10.1016/j.mlblux.2022.100149","DOIUrl":"10.1016/j.mlblux.2022.100149","url":null,"abstract":"<div>Ga2O3 has attracted significant attention for various applications such as power-switching applications and deep-ultraviolet optoelectronics. In this study, we demonstrated a lattice-matching κ-(In1−xGax)2O3 thin film grown on an ε-GaFeO3 substrate via the mist chemical vapor deposition process. The X-ray diffraction peak of the thin film was almost coincident with that of the substrate and exhibited Laue oscillations. Atomic force microscopy revealed that the surface of the κ-(In1−xGax)2O3 thin film exhibited a step-terrace morphology and was atomically flat. The selected area electron diffraction of transmission electron microscopy showed that the diffraction spots of the thin film and substrate overlapped, indicating that the thin film was almost lattice-matched with the substrate. We believe that the lattice-matched κ-(In1−xGax)2O3 thin film with an ε-GaFeO3 substrate will contribute significantly to the demonstration of ferroelectric κ-Ga2O3 based high electron mobility transistors.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100149"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150822000291/pdfft?md5=1554edeaa9c6a978bafb7723ca6c00e1&pid=1-s2.0-S2590150822000291-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45464494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Plasma transferred arc cladding of Ni-Cr-B-Si coating on copper substrate 铜基体上Ni-Cr-B-Si涂层的等离子转移电弧熔覆

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100137

Chao Zhang, Ruidong Wang, Rong Hu, Zhiyu Chen, Yuwen Zhang, Xionggang Lu

引用次数: 2

Self- blowing non-isocyanate polyurethane foam: Synthesis, characterization and properties 自吹非异氰酸酯聚氨酯泡沫:合成、表征和性能

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100142

S. Anitha , G Unnikrishnan , K.S. Santhosh Kumar

{"title":"Self- blowing non-isocyanate polyurethane foam: Synthesis, characterization and properties","authors":"S. Anitha , G Unnikrishnan , K.S. Santhosh Kumar","doi":"10.1016/j.mlblux.2022.100142","DOIUrl":"10.1016/j.mlblux.2022.100142","url":null,"abstract":"<div>Polyurethane (PU) foams are inevitable for many applications from comfort materials or energy saving to aerospace. Today, greener routes for their production have gained thoughtful attention among the scientific community by avoiding mainly the use of toxic isocyanates. An easily scalable process for the realization of self-blown isocyanate-free PU (poly (hydroxy urethane)-PHU) foams by exploiting suitable amines and cyclic carbonates is demonstrated in this work. The foaming is attributed to the release of CO2, from the reaction of cyclic carbonate of resorcinol diglycidyl ether (RDGCC) with amine terminated oligomeric phenyl hydroxy amine (AOPHA), where a parallel reaction of the hydroxyl groups and amino groups with the cyclic carbonate groups are competing during polymerization and culminate in poly (hydroxy urethane) foam. The released gas was confirmed as CO2 from GC–MS and temperature dependent FTIR. The realized flexible PHU foam is thermally stable (>250 ℃) with adhesive strength between Al-Al as 1.5 to 2.0 MPa, and with a closed cell structure possessing a density of 480 kg/m3.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100142"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150822000229/pdfft?md5=1d12cf12d5ff51ffeaed0ef1b48f3eb5&pid=1-s2.0-S2590150822000229-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43605777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Effect of magnetic-electric-ultrasonic fields on microstructure and properties of Ni60A laser cladding coating 磁-电-超声场对Ni60A激光熔覆层组织和性能的影响

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100132

Houming Zhou, Zixin Chen, Mingfu Li, Yuxu Zhu, Caixing Xu, Jinhu Zhou

{"title":"Effect of magnetic-electric-ultrasonic fields on microstructure and properties of Ni60A laser cladding coating","authors":"Houming Zhou, Zixin Chen, Mingfu Li, Yuxu Zhu, Caixing Xu, Jinhu Zhou","doi":"10.1016/j.mlblux.2022.100132","DOIUrl":"10.1016/j.mlblux.2022.100132","url":null,"abstract":"<div>Ni60 coating is prepared utilizing laser cladding on 45 steel assisted by magnetic-ultrasonic-electric field. The effect of multi-physical fields on the cracking tendency, microstructure, phase composition, mechanical properties and corrosive resistance of coating is investigated. As results indicate, the macro-morphology of coating is affected by the multi-physical field and the microstructure is refined, which uniformizes the element distribution and prominently optimizes the tribological and anti-corrosive performance of coating, the number of cracks in the coating under multi-physical field reduce by 76.92%, compared with that without physical field, the average microhardness increases by 37.89%, the average friction coefficient decreases by 61.96%, the average wear loss decreases by 61.05%, the corrosive rate decreases by 93.01%.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100132"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150822000126/pdfft?md5=bb68f3aebeb2af24ac58253311101168&pid=1-s2.0-S2590150822000126-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47941521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Impact of NiO nano-particles on colossal magneto-resistance of La0.70Ca0.30MnO3 composite NiO纳米粒子对La0.70Ca0.30MnO3复合材料巨磁电阻的影响

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100147

Navjyoti Boora , Prince Sharma , Asrar Alam , Shafaque Rahman , Rafiq Ahmad , V.P.S. Awana , A.K. Hafiz

{"title":"Impact of NiO nano-particles on colossal magneto-resistance of La0.70Ca0.30MnO3 composite","authors":"Navjyoti Boora , Prince Sharma , Asrar Alam , Shafaque Rahman , Rafiq Ahmad , V.P.S. Awana , A.K. Hafiz","doi":"10.1016/j.mlblux.2022.100147","DOIUrl":"10.1016/j.mlblux.2022.100147","url":null,"abstract":"<div>Mixed-valent perovskite manganite has gained considerable research interest due to the increasing demand for energy storage materials. Herein, we show that colossal magneto-resistance properties of La0.7Ca0.3MnO3 (LCMO) can be changed via nickel oxide (NiO) doping. A two-step conventional solid-state reaction method is used to synthesize LCMO-10% NiO composite. The phase purity, structural, electrical (resistivity), and magneto-transport properties of as-synthesized LCMO-10% NiO composite are detailed. NiO doping shifts metal–insulator transition temperature (TMI) from 263 K to 195 K and increases resistivity. The magneto-resistance (MR) measurements showed 10% NiO doping resulted in a maximum MR of ∼ -70.32% at 200 K (near TMI) and 10 T applied magnetic field. However, -0.0849% MR is seen at 290 K (RT) and 0.3 T. The increased ∼ -63.85% MR is found at 100 K and at 10 T, which is comparatively much higher than the pristine LCMO sample. This is due to the addition of NiO in LCMO that improves physical properties (i.e., grain size).</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100147"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150822000278/pdfft?md5=3bcc03d92d9ac31000ac851c9406d99c&pid=1-s2.0-S2590150822000278-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41802631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Copper-doped cotton-like malleable electrospun bioactive glass fibers for wound healing applications 用于伤口愈合的铜掺杂类棉延展性电纺生物活性玻璃纤维

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100133

Liliana Liverani , Theresa Reiter , Kai Zheng , Zuzana Neščáková , Aldo R. Boccaccini

引用次数: 8

Sustainable structural, morphological and magnetic properties of MgFe2O4 nanoparticles under dynamic shock wave exposure 动态冲击波作用下MgFe2O4纳米颗粒的可持续结构、形态和磁性

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100146

V. Mowlika , C.S. Naveen , A.R. Phani , A. Sivakumar , S.A. Martin Britto Dhas , R. Robert

引用次数: 1

Evaluation of thermal kinetics of microencapsulated PCM for low-temperature thermal energy storage application 微封装PCM低温储热应用的热动力学评价

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100143

Atif Amim, Gaurav Priyadarshi, Tirtharaj Purushottam Babre, B. Kiran Naik

引用次数: 1

Spark plasma sintering treatment of cold sprayed materials for synthesis and structural modification: A case study using TiC-Cu composites 放电等离子烧结处理冷喷涂材料的合成和结构改性:以TiC-Cu复合材料为例

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100140

Tomila M. Vidyuk , Dina V. Dudina , Michail A. Korchagin , Alexander I. Gavrilov , Boris B. Bokhonov , Arina V. Ukhina , Maksim A. Esikov , Vladislav S. Shikalov , Vladimir F. Kosarev

{"title":"Spark plasma sintering treatment of cold sprayed materials for synthesis and structural modification: A case study using TiC-Cu composites","authors":"Tomila M. Vidyuk , Dina V. Dudina , Michail A. Korchagin , Alexander I. Gavrilov , Boris B. Bokhonov , Arina V. Ukhina , Maksim A. Esikov , Vladislav S. Shikalov , Vladimir F. Kosarev","doi":"10.1016/j.mlblux.2022.100140","DOIUrl":"10.1016/j.mlblux.2022.100140","url":null,"abstract":"<div>Materials obtained by cold spraying (CS) are subjected to post-spray treatment to increase cohesion between the particles. In this work, spark plasma sintering (SPS) was used for reactive processing of cold spray deposits for the first time. A mixture of a Ti-C-3Cu ball-milled powder and copper was used as a feedstock material for the formation of Cu matrix composites by CS. SPS treatment of CS deposits was used for the in-situ synthesis of TiC, formation of a dense structure and elimination of microcracks at the interface between the substrate and the deposit. The mechanism of structural changes in the composite agglomerates upon reaction was discussed. The TiC-Cu composite particles in the microstructure of the SPS-treated material possess a microhardness of 390 ± 40 HV0.025, which makes them suitable as reinforcing elements of composite nature in the design of Cu matrix materials. This study shows that SPS treatment is a promising solution for post-spray processing of cold spray coatings.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100140"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150822000205/pdfft?md5=323414a2bf6a78ba1bea57b3c86be5f4&pid=1-s2.0-S2590150822000205-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49217662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

High throughput laser surface micro-structuring of polystyrene by combining direct laser interference patterning with polygon scanner technology 直接激光干涉图案化与多边形扫描技术相结合的聚苯乙烯高通量激光表面微结构

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100144

Fabian Ränke , Robert Baumann , Bogdan Voisiat , Andrés Fabián Lasagni

{"title":"High throughput laser surface micro-structuring of polystyrene by combining direct laser interference patterning with polygon scanner technology","authors":"Fabian Ränke , Robert Baumann , Bogdan Voisiat , Andrés Fabián Lasagni","doi":"10.1016/j.mlblux.2022.100144","DOIUrl":"10.1016/j.mlblux.2022.100144","url":null,"abstract":"<div>Laser-based processing techniques have proven to be an effective option of modifying polymer surfaces. In this context Direct Laser Interference Patterning in conjunction with the polygon scanner technique is used to fabricate textured polystyrene surfaces through ultra-fast beam deflection. This is achieved by using a high-average power picosecond laser in combination with a polygon mirror-based scanning system. The two-beam DLIP optical configuration leads to the formation of line-like structures with a spatial period of 21.0 µm. The influence of the scanning speed and the repetition rate on the structure formation is investigated, allowing structure heights up to 23 µm. The formation of the micro-structure was found to result from swelling and ablation mechanisms. By applying scanning speeds of 350 m/s, a throughput of 1.1 m2/min is reported for the first time using this method.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100144"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150822000242/pdfft?md5=bd49ae626fa11ed56905c3e7206a72b5&pid=1-s2.0-S2590150822000242-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45087051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6