Journal of metals, materials and minerals最新文献_第10页

Recovery of pure silver from spent silver electroplating solutions via electrochemical process and zinc cementation 用电化学法和锌胶结法从电镀废银液中回收纯银

IF 0.9

Journal of metals, materials and minerals Pub Date : 2023-03-28 DOI: 10.55713/jmmm.v33i1.1576

T. Patcharawit, C. Kansomket, Woranittha Kritsarikun, Ketmanee Taseela, Chonthicha Paernaphan, Thiwavan Laphosin, Teerawut Tannukit, S. Khumkoa

{"title":"Recovery of pure silver from spent silver electroplating solutions via electrochemical process and zinc cementation","authors":"T. Patcharawit, C. Kansomket, Woranittha Kritsarikun, Ketmanee Taseela, Chonthicha Paernaphan, Thiwavan Laphosin, Teerawut Tannukit, S. Khumkoa","doi":"10.55713/jmmm.v33i1.1576","DOIUrl":"https://doi.org/10.55713/jmmm.v33i1.1576","url":null,"abstract":"Recycling of spent silver electroplating solutions has been investigated via electrowinning and electrorefining in comparison to zinc cementation technique in this research. Two different compositions of transparent and dark waste solutions were used having the remaining silver contents of 17.71 g⸳L-1 and 33.36 g⸳L-1 respectively. The waste solutions were used as an electrolyte in the first step of electrowinning at low current density of 0.015 A⸳cm-2. It was found that increasing electrowinning time from 4 h to 24 h increased the recovery of silver cathode for both types of waste solutions. The optimum electrowinning time was higher than 8 h, giving the recovery of higher than 97.5% and 98.5% purity for 24 h electrowinning. Through the subsequent electrorefining, the electrowon silver cathode was set as the anode, while HNO3 + AgNO3 electrolyte containing high silver content of 120 g Ag/L was used. By controlling the potential at 0.8 V, silver crystal of high purity > 99.9% was obtained. The highest recovery was 99.11% when using silver cathode obtained from electrowinning of the transparent waste solution. Zinc cementation however led to loss of silver in the precipitate form on the zinc metal surface, giving only 86.16% recovery.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84486122","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

Wear behavior of in-situ oxide dispersion strengthened Fe-8Ni alloy with Zr additions 添加Zr的原位氧化物弥散强化Fe-8Ni合金的磨损行为

IF 0.9

Journal of metals, materials and minerals Pub Date : 2023-03-28 DOI: 10.55713/jmmm.v33i1.1568

Mustafa Tekin, F. Muhaffel, H. Kotan, Murat Çağlar Baydoğan

{"title":"Wear behavior of in-situ oxide dispersion strengthened Fe-8Ni alloy with Zr additions","authors":"Mustafa Tekin, F. Muhaffel, H. Kotan, Murat Çağlar Baydoğan","doi":"10.55713/jmmm.v33i1.1568","DOIUrl":"https://doi.org/10.55713/jmmm.v33i1.1568","url":null,"abstract":"In this study, in-situ oxide dispersion strengthened (ODS) Fe91Ni8Zr1 and Fe88Ni8Zr4 alloys were produced by combination of high energy mechanical alloying (HEMA) and high temperature equal channel angular extrusion (HT-ECAE). The wear behaviors of the consolidated samples were investigated under different loads from 1 N to 4 N by reciprocating wear tests at room temperature. The Scanning electron microscopy (SEM) was used to examine the wear tracks to analyze the wear characteristics as a function of applied loads. The relative comparison of the wear results showed that under the lower loads of 1 N and 2 N, Fe88Ni8Zr4 alloy has lower wear rate than Fe91Ni8Zr1 alloy whereas under the higher loads of 3 N and 4 N, it is vice versa. Additionally, the friction coefficient of Fe91Ni8Zr1 alloy was found to be lower than that of Fe88Ni8Zr4 alloy under all the applied loads. The results were comparatively discussed with respect to microstructural features of 1 at% Zr and 4 at% Zr containing ODS alloys produced by HEMA followed by ECAE. The obtained results of ODS alloys with different grain size, precipitate size, and number density of the precipitates, may disclose a new sight for using such alloys in wear applications just as cutting tools, turbine blades, and discs.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77427059","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

Preparation of spent coffee grounds-rubber composites using natural rubber latex as binder 以天然胶乳为粘合剂制备咖啡渣-橡胶复合材料

IF 0.9

Journal of metals, materials and minerals Pub Date : 2022-12-26 DOI: 10.55713/jmmm.v32i4.1543

Varittha Mitsaichon, Kanok-on RUAESRIJAN1, P. Phinyocheep, T. Amornsakchai, P. Junkong, S. Thanawan

{"title":"Preparation of spent coffee grounds-rubber composites using natural rubber latex as binder","authors":"Varittha Mitsaichon, Kanok-on RUAESRIJAN1, P. Phinyocheep, T. Amornsakchai, P. Junkong, S. Thanawan","doi":"10.55713/jmmm.v32i4.1543","DOIUrl":"https://doi.org/10.55713/jmmm.v32i4.1543","url":null,"abstract":"The aim of this work was to explore the use of natural rubber latex (NRL) as a natural binder (according to the BCG concept) to replace commercial synthetic binders such as polyurethane resin. A composite sheet of spent coffee ground (SCG) and natural rubber (NR) was prepared by mixing of SCG in NRL compounds having concentrations of 30% and 60% dry rubber content (DRC). The amount of SCG in the composites was varied from 33 to 167 part per hundred rubber (phr). The mixture was cast in a mold to form a thin sheet then left drying at room temperature for 24 h. TGA thermogram shows 3 decomposition stages composed of moisture (including volatile matters), polysaccharide and lipid at 44%, 42% and 13% weight, respectively. Hardness (Shore A) increases gradually with increasing the amount of SCG, while tensile strength and elongation at break tend to decrease. Tensile strength decreases from 2.6 MPa to 1.2 MPa for the composites containing 33 phr and 133 phr of SCG, respectively. Alkaline surface treatment of SCG could improve the adhesion between SCG and NR as evidenced by the increase in tensile strength, elongation at break and compression set properties.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81006878","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

Mineralogical studies and optimization of tabling parameters of low grade chromite ore by box behnken design of experiments 采用箱式试验设计对低品位铬铁矿进行矿物学研究及选矿参数优化

IF 0.9

Journal of metals, materials and minerals Pub Date : 2022-12-26 DOI: 10.55713/jmmm.v32i4.1563

Amit Kumar Bhandary, S. Mukherjee, R. Dey, M. Chaudhuri

{"title":"Mineralogical studies and optimization of tabling parameters of low grade chromite ore by box behnken design of experiments","authors":"Amit Kumar Bhandary, S. Mukherjee, R. Dey, M. Chaudhuri","doi":"10.55713/jmmm.v32i4.1563","DOIUrl":"https://doi.org/10.55713/jmmm.v32i4.1563","url":null,"abstract":"Chromite ore is geologically associated with gangue materials which have lower density compared to pure chromite (FeO.Cr2O3). Gravity separation techniques are very suitable for beneficiation of low grade chromite ore. In the present study mineralogical analysis of the sample has been carried out by using Wavelength dispersive x-ray fluorescence (WDXRF), X-ray powder diffraction (XRD), Scanning electron microscopy (SEM) and Energy dispersive X-ray (EDX). The beneficiation of low grade (Cr2O3% 26.88) chromite ore has been investigated using wilfley table. Optimization has been carried out using box-behnken statistical design (BBD). The experimental parameters selected are: tilt angle, water flow rate and pre-heat treatment of the chromite ore. It is observed that percentage recovery of Cr2O3 depends upon tilt angle, water flow rate and pre-heat treatment of chromite ore. Pre-heat treatment of chromite ore plays a vital role in gravity separation. The optimized tabling conditions suggested by BBD are 8° tilt angle, 4 L∙min-1 water flow rate and temperature for pre-heat treatment of raw chromite ore at 443.72℃. After tabling under optimized conditions, chromite concentrate contained 1.91 Cr/Fe ratio, 46.02% of Cr2O3 with 65.95% recovery.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83098548","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

The effects of double intercritical annealing on microstructure and mechanical properties of 0.107C-2.39Mn-0.453Si dual phase steel 双临界间退火对0.107C-2.39Mn-0.453Si双相钢组织和力学性能的影响

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Journal of metals, materials and minerals Pub Date : 2022-12-26 DOI: 10.55713/jmmm.v32i4.1537

N. Saenarjhan, G. Lothongkum, J. Opapaiboon

引用次数: 0

Green acidic catalyst from cellulose extracted from sugarcane bagasse through pretreatment by electron beam irradiation and subsequent sulfonation for sugar production 从甘蔗渣中提取纤维素，经电子束辐照预处理后磺化制备制糖用绿色酸性催化剂

IF 0.9

Journal of metals, materials and minerals Pub Date : 2022-12-26 DOI: 10.55713/jmmm.v32i4.1540

T. Rattanawongwiboon, Prim Chanklinhorm, Threeraphat Chutimasakul, T. Kwamman, Wilasinee Kingkam, Rattapon Khamlue, S. Ummartyotin

{"title":"Green acidic catalyst from cellulose extracted from sugarcane bagasse through pretreatment by electron beam irradiation and subsequent sulfonation for sugar production","authors":"T. Rattanawongwiboon, Prim Chanklinhorm, Threeraphat Chutimasakul, T. Kwamman, Wilasinee Kingkam, Rattapon Khamlue, S. Ummartyotin","doi":"10.55713/jmmm.v32i4.1540","DOIUrl":"https://doi.org/10.55713/jmmm.v32i4.1540","url":null,"abstract":"The objective of this research is to prepare a green acidic catalyst from cellulose derived from sugarcane bagasse (SB). Initially, SB was pretreated by electron beam irradiation with a dose of 50 kGy to 200 kGy and subsequent acid hydrolysis to obtain cellulose. The cellulose derived from SB was carbonized at different temperatures for 4 h and then sulfonated with heating at 120°C under reflux. Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) were used to confirm the successful preparation of acidic catalyst by irradiation pretreatment and subsequent sulfonation. The cellulose derived from irradiated SB at the lowest dose of 50 kGy was used as a representative irradiated sample for comparison with non-irradiation. Scanning electron microscope image of sulfonated biochar was observed pores with various sizes. The existence of sulfur atom onto sulfonated biochar surface was investigated by Energy dispersive X-ray spectroscopy. After sugar production by sulfonated biochar as an acidic catalyst, the total sugar content was measured by a phenol-sulfuric acid method using a UV-Vis spectrophotometer. The total sugar with 94.51 ± 1.35% content was found when the acidic catalyst was performed. It was remarkable to note that sulfonated biochar prepared from cellulose derived from SB after pretreatment and sulfonation exhibited outstanding result for being as an acidic catalyst for sugar production.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90945297","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

Development of FexOy particle onto bacterial cellulose network by forced hydrolysis and its electrical conductivity FexOy颗粒在细菌纤维素网络上的强制水解及其导电性

IF 0.9

Journal of metals, materials and minerals Pub Date : 2022-12-26 DOI: 10.55713/jmmm.v32i4.1530

Prompong Khamwongsa, P. Wongjom, Andi Magattang Gafur Muchlisc, Chun Che Lin, Seranee Srisuk, S. Ummartyotin

{"title":"Development of FexOy particle onto bacterial cellulose network by forced hydrolysis and its electrical conductivity","authors":"Prompong Khamwongsa, P. Wongjom, Andi Magattang Gafur Muchlisc, Chun Che Lin, Seranee Srisuk, S. Ummartyotin","doi":"10.55713/jmmm.v32i4.1530","DOIUrl":"https://doi.org/10.55713/jmmm.v32i4.1530","url":null,"abstract":"FexOy particle and bacterial cellulose composite sheet was successfully prepared by forced hydrolysis. The presence of Fe3+ ions in bacterial cellulose suspension significantly provided the positive charge due to electrostatic force as reported by Zeta potential. With the pH of 12 of bacterial cellulose suspension, particle was nucleated between bacterial cellulose networks. Fourier transform infrared exhibited Fe-O stretching. X-ray diffraction reported that the mixture of Fe2O3 and Fe3O4 was existed onto bacterial cellulose composite. Scanning electron microscope reported that FexOy particle was randomly distributed in bacterial cellulose network. Intensity of Fe was qualitatively observed by energy dispersive analysis. With the existence of FexOy particle, the composite illustrated the inferiority of thermal stability of 150℃. Furthermore, it was noted that the resistivity was reduced with respect to increment of FexOy particle, suggesting that electrical conductivity was then enhanced. It was remarkable to note that FexOy particle and bacterial cellulose composite sheet prepared from forced hydrolysis showed the excellent properties as a candidate for flexible electrode.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83213242","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

Research progress of novel zirconium alloys with high strength and toughness 新型高强韧锆合金的研究进展

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Journal of metals, materials and minerals Pub Date : 2022-12-26 DOI: 10.55713/jmmm.v32i4.1526

Nanxin Zhang, C. Xia, J. Qin, Qiang Li, Xinyu Zhang, Riping Liu

引用次数: 1

Sugarcane waste-derived activated carbon for lithium-sulfur batteries with enhanced performance by thiourea doping 硫脲掺杂提高锂硫电池性能的甘蔗废活性炭

IF 0.9

Journal of metals, materials and minerals Pub Date : 2022-12-26 DOI: 10.55713/jmmm.v32i4.1542

Yanisa Thumkaew, Vipada Petson, Thanapat Jorn-am, Natee Sirisit, Chalathorn Chanthad, J. Manyam, Xiao Liang, Shufeng Song, P. Paoprasert

{"title":"Sugarcane waste-derived activated carbon for lithium-sulfur batteries with enhanced performance by thiourea doping","authors":"Yanisa Thumkaew, Vipada Petson, Thanapat Jorn-am, Natee Sirisit, Chalathorn Chanthad, J. Manyam, Xiao Liang, Shufeng Song, P. Paoprasert","doi":"10.55713/jmmm.v32i4.1542","DOIUrl":"https://doi.org/10.55713/jmmm.v32i4.1542","url":null,"abstract":"In this work, bio-renewable sugarcane bagasse and leaf were utilized for the preparation of activated carbon (BAC and LAC), which was then employed as the host material in lithium-sulfur (Li-S) batteries. The activated carbon, for the first time, was doped with nitrogen and sulfur via the addition of thiourea during the synthesis of carbon char via a simple, one-step hydrothermal method. The activated carbon was used to fabricate the cathodes of the CR2032 coin cells. The amount of added thiourea was found to influence the nitrogen/sulfur content, porosity, amorphous/graphitic structure, and performance of the activated carbon. At 0.2C, BAC2 (4.15 wt% thiourea doping) gave the highest specific capacity of 478 mAh⸳g-1 among the bagasse-derived activated carbon, while LAC3 (8.3 wt% thiourea doping) yielded the highest specific capacity of 521 mAh⸳g-1 among the leaf-derived activated carbon. They also demonstrated an excellent capacity retention of 72% and 83%, respectively, after 100 cycles. Furthermore, thiourea doping also improved the rate performance, by providing fast interfacial processes. Based on these results, the obtained activated carbon demonstrates the potential for the fabrication of high-performance Li-S batteries. Also, this work highlights the practical utilization of both sugarcane wastes for these emerging energy storage devices.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77139799","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: 1

Effect of pore modifiers on physical and mechanical properties of high-performance cement mortar 孔隙改性剂对高性能水泥砂浆物理力学性能的影响

IF 0.9

Journal of metals, materials and minerals Pub Date : 2022-12-26 DOI: 10.55713/jmmm.v32i4.1536

Kisun Chunti, S. Polsilapa, Parinya Chakartnarodome, P. Sonprasarn, W. Prakaypan, E. Laitila

{"title":"Effect of pore modifiers on physical and mechanical properties of high-performance cement mortar","authors":"Kisun Chunti, S. Polsilapa, Parinya Chakartnarodome, P. Sonprasarn, W. Prakaypan, E. Laitila","doi":"10.55713/jmmm.v32i4.1536","DOIUrl":"https://doi.org/10.55713/jmmm.v32i4.1536","url":null,"abstract":" Two different pore modifiers (PM), artificial pozzolan (AP) and modified aluminum salt (MA), were introduced into the composition of a High Performance Cement Mortar (HPCM). The chemical compositions of raw materials, ordinary Portland cement (OPC), sea sand, AP, and MA were identified by X-Ray Fluorescence spectrometry (XRF). The hydration kinetics resulting from each PM added to the HPCM was investigated by the relevance of hydration temperature. The mechanical properties such as compressive strength, dynamic modulus of rupture, and dynamic modulus of elasticity were measured as well as water absorption and density. Additionally, Scanning Electron Microscope (SEM) and Brunauer-Emmett-Teller (BET) were used to reveal the beneficial effects of appropriate PM through the microstructure, pore size distribution and specific surface area. Experimental results showed that the PM increased the hydration temperature, resulting in the generation of stress at early stages throughout the HPCM structure. This stress caused the formation of micropores, which increased water absorption, decreased density, and enhanced the structural integrity\u0000 ","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83701975","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