JOM最新文献_第7页

IF 2.1 4区材料科学

JOM Pub Date : 2024-10-04 DOI: 10.1007/s11837-024-06921-8

引用次数: 0

Isothermal Oxidation Resistance of As-cast NiAl and NiAl-(Cr, Mo) Eutectic Alloys at 1000°C 砷铸镍铝和镍铝-（铬、钼）共晶合金在 1000°C 时的等温抗氧化性

IF 2.1 4区材料科学

JOM Pub Date : 2024-10-03 DOI: 10.1007/s11837-024-06893-9

Shupeng Xu, Junjun Wang, Jian Peng, Xiang Guo, Long Liu, Zhigang Xu, Wenjun Li, Qiang Shen, Chuanbin Wang

引用次数: 0

An Environmentally Friendly Method for Producing α-Fe2O3 Pigment from Low-Grade Hematite Residue 利用低品位赤铁矿残渣生产 α-Fe2O3 颜料的环保型方法

IF 2.1 4区材料科学

JOM Pub Date : 2024-10-03 DOI: 10.1007/s11837-024-06901-y

Xiaohua Peng, Xingbin Li, Chang Wei, Zhigan Deng, Minting Li, Gang Fan

{"title":"An Environmentally Friendly Method for Producing α-Fe2O3 Pigment from Low-Grade Hematite Residue","authors":"Xiaohua Peng, Xingbin Li, Chang Wei, Zhigan Deng, Minting Li, Gang Fan","doi":"10.1007/s11837-024-06901-y","DOIUrl":"10.1007/s11837-024-06901-y","url":null,"abstract":"<div>This study employed low-grade hematite acquired from zinc hydrometallurgy to synthesize α-Fe2O3 pigment via high-temperature hydrothermal treatment. This study investigated the effects of hydrothermal conditions on α-Fe2O3 pigment. The results indicate that hydrothermal treatment causes the internal rearrangement of Fe (oxyhydr)oxides into Fe oxides. A high-quality α-Fe2O3 pigment with a Fe content > 69% and Zn and S content < 0.15% and 0.25% was successfully synthesized using the HCl-H2O medium at > 260°C. The average crystal size of α-Fe2O3 pigment was found to be between 45 nm and 80 nm. The α-Fe2O3 pigment consists of prismatic crystals with a smooth surface and distinct edges. The UV-VIS-NIR spectra demonstrated that the α-Fe2O3 pigment strongly absorbs light in the wavelength range of 200–420 nm, and its absorption edge falls between 420 nm and 550 nm. Additionally, the α-Fe2O3 pigment has chromatic values of L* = 37.27–38.69, a* = 5.07–6.26, and b* = 1.70–2.49. All α-Fe2O3 products show similar colors. This work introduces an environmentally friendly method for synthesis of high-quality α-Fe2O3 pigment using iron removal residue in zinc hydrometallurgy.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"76 12","pages":"7231 - 7246"},"PeriodicalIF":2.1,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737019","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

Microstructure and Mechanical Property of Titanium Film-Modified Sapphire/High Nb-TiAl Alloy Joints Using Ag-Cu Filler by Vacuum Brazing 使用银铜填料通过真空钎焊获得的钛膜改性蓝宝石/高铌钛铝合金接头的微观结构和机械性能

IF 2.1 4区材料科学

JOM Pub Date : 2024-10-02 DOI: 10.1007/s11837-024-06871-1

S. F. Chen, Y. S. Wang, D. B. Sun, X. G. Xing, J. Gao, H. J. Hei, Y. L. Wang, S. W. Yu, J. P. Lin

引用次数: 0

Preparation and Characterization of TiB2/Al3Ti/Al2O3 Composite Nano-powder TiB2/Al3Ti/Al2O3 复合纳米粉体的制备与表征

IF 2.1 4区材料科学

JOM Pub Date : 2024-10-02 DOI: 10.1007/s11837-024-06867-x

Ling-he Zeng, Kai Wang, Xiao-feng Zhen, Nianbing Zhang

{"title":"Preparation and Characterization of TiB2/Al3Ti/Al2O3 Composite Nano-powder","authors":"Ling-he Zeng, Kai Wang, Xiao-feng Zhen, Nianbing Zhang","doi":"10.1007/s11837-024-06867-x","DOIUrl":"10.1007/s11837-024-06867-x","url":null,"abstract":"<div>TiB2/Al3Ti/Al2O3 composite nano-powder has been prepared by sintering TiO2, Al powder, and B2O3 with molten salt as the medium. The sintered powder was characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy–energy dispersive spectroscopy (TEM–EDS), and x-ray photoelectron spectroscopy (XPS). The results illustrated the successful synthesis of TiB2/Al3Ti/Al2O3 nano-powder when the mass ratio of molten salt to reactants was 3 after calcination at 1000°C for 3 h. The synthesized powder comprises baseball-like, lamellar, and spheroidal nanoparticles, with TiB2 and Al2O3 presenting a nano-scale mosaic structure which was used to reinforce aluminum-based composites. The synthesis mechanism of TiB2/Al3Ti/Al2O3 nano-powder was also investigated. With the increase in temperature, Al2O3, Al3Ti, and Al8B2O15 intermediate phases were first generated. Then, the further increase in temperature promoted the dissolution and diffusion of the unstable Al8B2O15 phase in the molten salt, increasing the contact between Ti and B, thus producing the TiB2 phase. By adding the TiB2/Al3Ti/Al2O3 powder to the A6061 aluminum alloy at a 5% mass fraction, the Vickers hardness of the original alloy increased by 55.30%.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"76 12","pages":"7325 - 7333"},"PeriodicalIF":2.1,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736987","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

Optimizing CZ Silicon Crystal Growth: Algorithmic Approach for Defect Minimization 优化 CZ 硅晶体生长：最小化缺陷的算法方法

IF 2.1 4区材料科学

JOM Pub Date : 2024-09-30 DOI: 10.1007/s11837-024-06879-7

Amir Reza Ansari Dezfoli

{"title":"Optimizing CZ Silicon Crystal Growth: Algorithmic Approach for Defect Minimization","authors":"Amir Reza Ansari Dezfoli","doi":"10.1007/s11837-024-06879-7","DOIUrl":"10.1007/s11837-024-06879-7","url":null,"abstract":"<div>Silicon wafers with minimal defects are important for semiconductor manufacturing as they boost device performance and reliability. Reducing defects enhances electronic properties, decreasing device failures and increasing yields. A new algorithm is suggested in this study via computational modeling and simulation to ascertain the pulling speed necessary for silicon crystal growth with fewer defects. This algorithm can adjust the pulling speed dynamically to correctly position the boundary between vacancies and interstitials and allow enough recombination time during crystal growth before point defects reach the bulk defects nucleation temperature. Experimental validation is performed using polished silicon wafers taken from final silicon ingots, accompanied by laser particle count measurements. The results validate the effectiveness of the new algorithm in reducing defect formation during crystal growth. Furthermore, a comprehensive analysis of production speed, cost, and power consumption at different pulling speeds is provided. The suggested algorithm finds a middle ground between production efficiency and crystal quality, offering speed and cost optimization while maintaining minimal defect formation.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"76 11","pages":"6545 - 6554"},"PeriodicalIF":2.1,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452922","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

Introducing the 2025 TMS Scholars 介绍 2025 TMS 奖学金获得者

IF 2.1 4区材料科学

JOM Pub Date : 2024-09-30 DOI: 10.1007/s11837-024-06918-3

Kaitlin Calva

引用次数: 0

Digital Manufacturing and Hydrogen Technology Highlighted in Recent TMS Studies TMS 近期研究重点关注数字化制造和氢能技术

IF 2.1 4区材料科学

JOM Pub Date : 2024-09-30 DOI: 10.1007/s11837-024-06919-2

Kelly Zappas

引用次数: 0

Prediction of Copper Matte Grade Based on DN-GAN Stacking Algorithm

IF 2.1 4区材料科学

JOM Pub Date : 2024-09-30 DOI: 10.1007/s11837-024-06886-8

Tiangui Li, Wenjuan Gu, Wenqi Gao, Can Ding, Yanchao Yin

{"title":"Prediction of Copper Matte Grade Based on DN-GAN Stacking Algorithm","authors":"Tiangui Li, Wenjuan Gu, Wenqi Gao, Can Ding, Yanchao Yin","doi":"10.1007/s11837-024-06886-8","DOIUrl":"10.1007/s11837-024-06886-8","url":null,"abstract":"<div>Aiming at the problem of insufficient data in actual production, we propose numerous process parameters for copper matte smelting, and complex relationships between process parameters and quality indicators, which make it difficult to accurately predict the copper matte grade. A method based on data neural generative adversarial network (DN-GAN) data generation and ensemble learning is proposed. First, the DN-GAN network is used to expand the data to solve the problem of insufficient data volume, where the original data are fused with the expanded data to form a new dataset. The tree-structured Parzen estimator (TPE) optimization algorithm is used to optimize the hyperparameters of the basic model in the stacking integration algorithm. Finally, the optimal hyperparameter combination is adopted to predict the grade of copper matte. The experimental results show that the prediction method proposed in this paper has a mean square error (MSE) of 0.093, a mean absolute error (MAE) of 0.236, and a goodness of fit (R2) of 0.979. Thus, the effectiveness of the generated adversarial network and stacked ensemble prediction in this paper has been verified, providing a novel approach for predicting the grade of copper matte.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 1","pages":"50 - 60"},"PeriodicalIF":2.1,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859674","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

JOM Technical Topics JOM 技术专题

IF 2.1 4区材料科学

JOM Pub Date : 2024-09-30 DOI: 10.1007/s11837-024-06917-4

引用次数: 0