Advanced Materials Research最新文献_第2页

Biomaterials and Structural Materials 生物材料和结构材料

Advanced Materials Research Pub Date : 2024-01-31 DOI: 10.4028/b-qt3ohm

Alan Kin Tak Lau, A. D. Pramata

引用次数: 0

Effect of Flame Remelting on the Microstructure, Wear and Corrosion Resistance of HVOF Sprayed NiCrBSi Coatings 火焰重熔对 HVOF 喷涂的 NiCrBSi 涂层的微观结构、耐磨性和耐腐蚀性的影响

Advanced Materials Research Pub Date : 2024-01-31 DOI: 10.4028/p-v2xcol

Cheng Wei Liu, En Wei Qin, Guo Xing Chen, Shao Chong Wei, Yang Zou, Lin Ye, Shu Hui Wu

{"title":"Effect of Flame Remelting on the Microstructure, Wear and Corrosion Resistance of HVOF Sprayed NiCrBSi Coatings","authors":"Cheng Wei Liu, En Wei Qin, Guo Xing Chen, Shao Chong Wei, Yang Zou, Lin Ye, Shu Hui Wu","doi":"10.4028/p-v2xcol","DOIUrl":"https://doi.org/10.4028/p-v2xcol","url":null,"abstract":"As a post treatment, thermal remelting is an effective method to eliminate pores and establish a metallurgical bonding for thermal sprayed coatings. However, it is rather difficult to obtain simultaneously high corrosion and wear resistance, since additional energy input usually leads to more homogeneous microstructure in coatings, which deteriorates mechanical hardness. In this work, flame remelting has been imposed to high velocity oxygen-fuel sprayed self-flux NiCrBSi coatings. The remelting effects on microstructure were characterized in terms of porosity and phase analysis. The microhardness, wear resistance and corrosive behaviors were compared among substrate steel, as-sprayed and as-remelted coatings. Results show that the lamellar boundaries and internal defects in the as-sprayed coatings have been eliminated by remelting. The coating porosity has substantially reduced from 7.36% to 0.75%, and a metallurgical bonding at the coating/substrate interface has been formed. Comparing with the as-sprayed coatings, the microhardness of the remelted coatings increases about 21% and the wear weight loss reduces about 42%. By flame remelting, the wear mechanism changes from furrow and abrasive wear to micro-cutting and local fracture. The remelted coatings have also exhibited better corrosion resistance by means of salt spraying and potentiodynamic tests.","PeriodicalId":7271,"journal":{"name":"Advanced Materials Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140471890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sinergy of Biodiesel and its Natural Antioxidant from Rice Bran Feedstock 从米糠原料中提取生物柴油及其天然抗氧化剂的新能源技术

Advanced Materials Research Pub Date : 2024-01-31 DOI: 10.4028/p-0zmhd9

Ghusrina Prihandini, Dhyna Analyses, Tifa Paramita, Rony Pasonang Sihombing

引用次数: 0

Influence of Cow Bone Powder on Selected Engineering Properties of Lime-Stabilized Soil 牛骨粉对石灰稳定土部分工程特性的影响

Advanced Materials Research Pub Date : 2024-01-31 DOI: 10.4028/p-v0qpkz

F. Ayodele, T. Ajijola, Ohunene Usman, Jonathan Segun Adekanmi

{"title":"Influence of Cow Bone Powder on Selected Engineering Properties of Lime-Stabilized Soil","authors":"F. Ayodele, T. Ajijola, Ohunene Usman, Jonathan Segun Adekanmi","doi":"10.4028/p-v0qpkz","DOIUrl":"https://doi.org/10.4028/p-v0qpkz","url":null,"abstract":"This study investigates the influence of cow bone powder (CBP) on consistency and compaction characteristics of lime-stabilized soil. Twelve soil samples were collected from four routes connecting Ado-Ekiti. Index and compaction tests were performed on the natural and stabilized samples. The soil samples were classified according to AASHTO groups and eventually restructured into four (4) groups: A-6, A-7-6, A-4, and A-7-5. They were named samples A, B, C, and D respectively. The oxide compositions of the samples were determined. Lime was blended with soils at proportions of 0, 2, 4, 6, 8,10 %, and the optimal lime content (LimeOpt) was obtained. The LimeOpt + soil mixture was mixed with 2, 4, 6, 8,10 % of CBP. The Soil + LimeOpt + CBP mixtures were subjected to consistency limits and compaction tests. Plasticity index (PI) of soils A, B, C, and D was 14.19, 21.06, 11.64, and 14.19 % respectively, while the MDD was 1640, 1730, 1630, and 1631 kg/m3. Soil A, B, C, and D + LimeOpt all had reduced PIs of 7.68, 16.40, 5.04, and 12.05%, respectively. For the MDD of soil + LimeOpt mixtures, 1789, 1920, 1906, and 1898 kg/m3 were also found for Samples A, B, C, and D. Soil + LimeOpt + CBP showed that both the PI (from 0.6 to 81.7%) and MDD (from 0.1 to 14.6%) improved. On the other hand, the addition of lime to soils A, B, C, and D showed that 8% lime content offered the optimal CBR performance. Further addition of CBP to the soil + LimeOpt mixtures equally improved both the soaked and unsoaked CBR of soils A, B, C, and D predominantly with 6% CBP addition offering the peak performance. This suggests that CBP is viable and can save cost, mitigate environmental hazards, and complement lime. Strength and durability evaluation of the ternary mixture is however recommended.","PeriodicalId":7271,"journal":{"name":"Advanced Materials Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140473197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SnO-SnO2 Nanocomposites Based pn Diode: In Situ Synthesis, Characterization and Fabrication of Device for pn Diode Applicability 基于 SnO-SnO2 纳米复合材料的 pn 二极管：原位合成、表征和制造适用于 pn 二极管的器件

Advanced Materials Research Pub Date : 2024-01-31 DOI: 10.4028/p-6v9m01

R. Narzary, Tani Chekke, S. Ngadong, Biswarup Satpati, S. Bayan, Upamanyu Das

{"title":"SnO-SnO2 Nanocomposites Based pn Diode: In Situ Synthesis, Characterization and Fabrication of Device for pn Diode Applicability","authors":"R. Narzary, Tani Chekke, S. Ngadong, Biswarup Satpati, S. Bayan, Upamanyu Das","doi":"10.4028/p-6v9m01","DOIUrl":"https://doi.org/10.4028/p-6v9m01","url":null,"abstract":"We report on an approach for the in-situ synthesis (chemical method based) of SnO-SnO2 nanocomposites followed by characterisation (including morphological, chemical, structural and optical) and investigation of the electrical properties of the nanocomposites with reference to the as-synthesized SnO2 nanoparticles. Compared to spherical SnO2 particles, the SnO phase is found existing in the form of sheet like morphology. It has been found that through controlling of the Sn:OH precursor ratio is effective for the achievement of SnO phase. Compared to the pristine SnO2 nanoparticles, the current-voltage (I-V) characteristics of the nanocomposites show the p-n junction characteristics. The observation of rectification ratio 2.05 indicates the excellent rectifying property of the nanocomposites due to the presence of p-type SnO phase. Further, exploration of the I-V characteristics has revealed the dominance of space-charge limited current transport mechanism for the nanocomposites sample. The lattice defects are discovered to be the cause of the transport mechanism in the nanocomposites sample.","PeriodicalId":7271,"journal":{"name":"Advanced Materials Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140479573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical and Microstructural Characterization of Diffusion-Bonded Copper-Nickel Joint Interface 弥散键合铜镍合金接合界面的机械和微结构表征

Advanced Materials Research Pub Date : 2024-01-31 DOI: 10.4028/p-k8wuuo

Salman Khan, Zainab Ali, Khadija Rehman, Massab Junaid

引用次数: 0

Response Surface Methodology: An Optimization of Process Variables for the Nanoencapsulation of Anthocyanins from Black Rice Bran 响应面方法学：黑米糠花青素纳米封装工艺变量优化

Advanced Materials Research Pub Date : 2024-01-31 DOI: 10.4028/p-rv054a

R. M. Bulatao, P. Eugenio, John Paulo A. Samin, J. R. Salazar, J. Monserate

{"title":"Response Surface Methodology: An Optimization of Process Variables for the Nanoencapsulation of Anthocyanins from Black Rice Bran","authors":"R. M. Bulatao, P. Eugenio, John Paulo A. Samin, J. R. Salazar, J. Monserate","doi":"10.4028/p-rv054a","DOIUrl":"https://doi.org/10.4028/p-rv054a","url":null,"abstract":"Nanoencapsulation technology has been used in food and pharmaceutical applications to increase bioactive chemical functioning and stability against external influences. To develop a cost-effective encapsulating procedure, additional optimization is required. This study employed response surface methodology (RSM) to optimize the encapsulation of anthocyanin-rich extract from black rice bran. The extract was encapsulated through pre-gelation and polyelectrolyte complex formation processes. Box-Behnken design was employed to determine the optimum conditions for the encapsulation process with the following process variables: chitosan concentration, pH, and CaCl2 concentration. Chemical characteristics, surface morphology, and particle size were used to describe the resultant capsules, which were then subjected to phytochemical analysis. The optimal encapsulation conditions for anthocyanin were 6.30 mg/mL chitosan, pH 5.5, and 36 mM CaCl2, with a 51.20 % encapsulation efficiency. The developed anthocyanin-loaded nanocapsule has a high TPC (3.87 mg GAE/g) and potent antioxidant activity (5.69 mg TE/g). SEM images revealed a smooth surface area and spherical particles that clumped together, with an average particle size of 94.70 nm. FTIR analysis corroborates the well-incorporation of anthocyanin into the nanocapsules. The encapsulation process of anthocyanin-rich extract from black rice bran was successfully optimized via RSM.","PeriodicalId":7271,"journal":{"name":"Advanced Materials Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140476437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of PVA/Chitosan and Tuna Fish Bones CHA Scaffold for Bone Tissue Engineering 用于骨组织工程的 PVA/壳聚糖和金枪鱼骨 CHA 支架的特性分析

Advanced Materials Research Pub Date : 2024-01-31 DOI: 10.4028/p-blfv8p

Sulistiyani Hayu Pratiwi, M. Sari, Yusril Yusuf

引用次数: 0

The Effect of Power Rate Microwave Heating on Limestone Carbonated Hydroxyapatite Scaffold Using Gas Foaming Method 微波加热功率对气泡法石灰石碳化羟基磷灰石支架的影响

Advanced Materials Research Pub Date : 2024-01-31 DOI: 10.4028/p-6gy5gl

Dyah Aris Widyastuti, Yusril Yusuf

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Cementitious Coatings for Concrete Surfaces: Effects of Curing Conditions on Performance Measure 混凝土表面的水泥基涂料：固化条件对性能测量的影响

Advanced Materials Research Pub Date : 2024-01-31 DOI: 10.4028/p-ro4ybi

Ketankumar G. Chitte, J. Narkhede, Ravindra G. Puri, Tushar Deshpande, Mahendra Bari, Ujwal Patil

引用次数: 0