Pub Date : 2019-09-01DOI: 10.17706/ijmse.2019.7.3.67-80
O. Jeje, J. Osula
{"title":"Isotherm, Kinetic and Thermodynamic Studies of Pb (II) and Nickel Ions Removal from Aqueous Solution Using Locally Sourced bio-Adsorbent","authors":"O. Jeje, J. Osula","doi":"10.17706/ijmse.2019.7.3.67-80","DOIUrl":"https://doi.org/10.17706/ijmse.2019.7.3.67-80","url":null,"abstract":"","PeriodicalId":14103,"journal":{"name":"International Journal of Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84783250","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}
Pub Date : 2019-09-01DOI: 10.17706/ijmse.2018.6.3.86-92
V. Tsepelev
{"title":"Nanotechnology for Obtaining Soft Magnetic Materials","authors":"V. Tsepelev","doi":"10.17706/ijmse.2018.6.3.86-92","DOIUrl":"https://doi.org/10.17706/ijmse.2018.6.3.86-92","url":null,"abstract":"","PeriodicalId":14103,"journal":{"name":"International Journal of Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91011626","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}
Pub Date : 2019-09-01DOI: 10.17706/ijmse.2019.7.3.52-58
Tian Miaomiao, Jing Chen, Yafei Li, Jin Yan
The Buton rock modified asphalt has the similar high temperature performance with the SBS modified asphalt, but the price is much less than the SBS asphalt. Moreover, it can be highly integrated with asphalt without polymerization, and has been considered as a green road construction materials. Wet processing technique has been chosen to produce the Buton rock modified asphalt, compare with the traditional dry processing technique, natural rock modified asphalt is much more easier to fuse with asphalt, and the performance of the mixture could be much stable. With the application of the wet processing Buton rock modified asphalt in Anhui Province, China, the mix design method and road performance has been tested and researched, and the tests results could meet the requirements of the national specification.
{"title":"Engineering Application Research of the Wet Processing Produced Buton Rock Modified Asphalt in Anhui Province, China","authors":"Tian Miaomiao, Jing Chen, Yafei Li, Jin Yan","doi":"10.17706/ijmse.2019.7.3.52-58","DOIUrl":"https://doi.org/10.17706/ijmse.2019.7.3.52-58","url":null,"abstract":"The Buton rock modified asphalt has the similar high temperature performance with the SBS modified asphalt, but the price is much less than the SBS asphalt. Moreover, it can be highly integrated with asphalt without polymerization, and has been considered as a green road construction materials. Wet processing technique has been chosen to produce the Buton rock modified asphalt, compare with the traditional dry processing technique, natural rock modified asphalt is much more easier to fuse with asphalt, and the performance of the mixture could be much stable. With the application of the wet processing Buton rock modified asphalt in Anhui Province, China, the mix design method and road performance has been tested and researched, and the tests results could meet the requirements of the national specification.","PeriodicalId":14103,"journal":{"name":"International Journal of Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77112851","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}
Pub Date : 2019-09-01DOI: 10.17706/ijmse.2018.6.3.80-85
Y. A. Swasono, B. Ramadhoni, O. Ujianto
Study on the effect of carbon black (CB) on Polypropylene (PP)/clay was done as the drawbacks of the composite thermal and flammability properties for certain application. The effects of CB on PP/clay were studied by varying CB content at 3, 5, and 7 percent hundred resin (phr). The composites were prepared by melt mixing using internal mixer at 222 °C, 83 rpm, and 10 minutes. PP-grafted-Maleic Anhydride (PP-g-MA) was used as a compatibilizer to facilitate dispersion of clay layers and CB particles on PP matrix. The effects of CB on thermal properties were analyzed from Differential Scanning Calorimetry (DSC) and Thermogravimetry Analysis (TGA) data. Meanwhile flammability properties was observed from burning rate that was confirmed by dispersion level from morphological analysis. The result showed that clay and CB enhanced the degree of crystallinity (Xc) of neat PP, with the highest Xc was achieved at 3 phr of CB. There was a negative correlation between Xc and Initial temperature decomposition (T5wt%) that attributed to thermal conductivity. Moreover, the addition of clay and CB changed dripping behavior of neat PP due to increment of melt viscosity and decreased burning rate because of dispersion of CB that might improve radical trap action.
{"title":"The Effect of Carbon Black on Thermal and Flammability Properties of Polypropylene/Clay Nanocomposites","authors":"Y. A. Swasono, B. Ramadhoni, O. Ujianto","doi":"10.17706/ijmse.2018.6.3.80-85","DOIUrl":"https://doi.org/10.17706/ijmse.2018.6.3.80-85","url":null,"abstract":"Study on the effect of carbon black (CB) on Polypropylene (PP)/clay was done as the drawbacks of the composite thermal and flammability properties for certain application. The effects of CB on PP/clay were studied by varying CB content at 3, 5, and 7 percent hundred resin (phr). The composites were prepared by melt mixing using internal mixer at 222 °C, 83 rpm, and 10 minutes. PP-grafted-Maleic Anhydride (PP-g-MA) was used as a compatibilizer to facilitate dispersion of clay layers and CB particles on PP matrix. The effects of CB on thermal properties were analyzed from Differential Scanning Calorimetry (DSC) and Thermogravimetry Analysis (TGA) data. Meanwhile flammability properties was observed from burning rate that was confirmed by dispersion level from morphological analysis. The result showed that clay and CB enhanced the degree of crystallinity (Xc) of neat PP, with the highest Xc was achieved at 3 phr of CB. There was a negative correlation between Xc and Initial temperature decomposition (T5wt%) that attributed to thermal conductivity. Moreover, the addition of clay and CB changed dripping behavior of neat PP due to increment of melt viscosity and decreased burning rate because of dispersion of CB that might improve radical trap action.","PeriodicalId":14103,"journal":{"name":"International Journal of Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78644274","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}
Pub Date : 2019-09-01DOI: 10.17706/ijmse.2018.6.3.72-79
Qiang Wang, Chengzhi Zhao, Hexin Zhang, Li Hong, Yang Xuekai
{"title":"Microstructure and Mechanical Properties of Al/Steel Bimetal Composite Produced by Compound Casting","authors":"Qiang Wang, Chengzhi Zhao, Hexin Zhang, Li Hong, Yang Xuekai","doi":"10.17706/ijmse.2018.6.3.72-79","DOIUrl":"https://doi.org/10.17706/ijmse.2018.6.3.72-79","url":null,"abstract":"","PeriodicalId":14103,"journal":{"name":"International Journal of Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78266122","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}
Pub Date : 2019-06-01DOI: 10.17706/ijmse.2019.7.2.26-33
A. Pfennig, M. Wolf, A. Kranzmann
Corrosion fatigue specimen with different surfaces (technical surfaces after machining and polished surfaces) of high alloyed martensitic stainless steel X46Cr13 (1.4043) and duplex stai nless steel X2CrNiMoN22 3 2 (1.4462) were compared at load amplitudes from 175 MPa to 325 MPa in the geothermal brine of the N orthern German Basin at 98 °C. Surface corrosion layers and pits reveal carbonate corrosion products on the surface such as FeCO 3 and FeOOH as the main precipitation phases with no dependence on the original surface roughness . At high stress amplitudes above 275 MPa technical surfaces (P50% at σa 300 MPa=5 × 10 5 ) resulted in more cycles to failure than polished (P50% at σa 300 MPa=1.5 × 10 5 ). The greater slope coefficient for technical surfaces k = 19.006 compared to polished surfaces k =8.78 demonstrate s earlier failure at given stress amplitude σa .
{"title":"The Role of Surface Texture on the Corrosion Fatigue Behavior of High Alloyed Stainless Steel Exposed to Saline Aquifer Water Environment","authors":"A. Pfennig, M. Wolf, A. Kranzmann","doi":"10.17706/ijmse.2019.7.2.26-33","DOIUrl":"https://doi.org/10.17706/ijmse.2019.7.2.26-33","url":null,"abstract":"Corrosion fatigue specimen with different surfaces (technical surfaces after machining and polished surfaces) of high alloyed martensitic stainless steel X46Cr13 (1.4043) and duplex stai nless steel X2CrNiMoN22 3 2 (1.4462) were compared at load amplitudes from 175 MPa to 325 MPa in the geothermal brine of the N orthern German Basin at 98 °C. Surface corrosion layers and pits reveal carbonate corrosion products on the surface such as FeCO 3 and FeOOH as the main precipitation phases with no dependence on the original surface roughness . At high stress amplitudes above 275 MPa technical surfaces (P50% at σa 300 MPa=5 × 10 5 ) resulted in more cycles to failure than polished (P50% at σa 300 MPa=1.5 × 10 5 ). The greater slope coefficient for technical surfaces k = 19.006 compared to polished surfaces k =8.78 demonstrate s earlier failure at given stress amplitude σa .","PeriodicalId":14103,"journal":{"name":"International Journal of Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81159269","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}
Pub Date : 2019-06-01DOI: 10.17706/ijmse.2019.7.2.40-51
H. Jawan
: Stress corrosion cracking may be defined as a spontaneous failure of the metal resulting from the combined effects of corrosion and stress. It is general agreement that SCC requires three conditions: first, the alloy must be susceptible, second, there must be a specific environment (water or seawater for aluminium alloys); and third, there must be a tensile stress. The susceptibility of the wrought aluminium alloys to SCC is related to many environmental (chemical), Metallurgical (Microstructural) and Mechanical factors. Crack initiation may start at some surface discontinuities, corrosion pits, or may be developed by intergranular corrosion or slip dissolution. This review describes the models of environmental - related crack propagation of aluminum alloys (7xxx) during the last few decades. Acknowledge on effects of different factors on the susceptibility to SCC permits to propose valuable mechanisms on crack advancement. The reliable mechanism of cracking gives a possibility to propose the optimum chemical composition and thermal treatment conditions resulting in microstructure the most suitable for real environmental condition and stress state.
{"title":"Some Thoughts on Stress Corrosion Cracking of (7xxx) Aluminum Alloys","authors":"H. Jawan","doi":"10.17706/ijmse.2019.7.2.40-51","DOIUrl":"https://doi.org/10.17706/ijmse.2019.7.2.40-51","url":null,"abstract":": Stress corrosion cracking may be defined as a spontaneous failure of the metal resulting from the combined effects of corrosion and stress. It is general agreement that SCC requires three conditions: first, the alloy must be susceptible, second, there must be a specific environment (water or seawater for aluminium alloys); and third, there must be a tensile stress. The susceptibility of the wrought aluminium alloys to SCC is related to many environmental (chemical), Metallurgical (Microstructural) and Mechanical factors. Crack initiation may start at some surface discontinuities, corrosion pits, or may be developed by intergranular corrosion or slip dissolution. This review describes the models of environmental - related crack propagation of aluminum alloys (7xxx) during the last few decades. Acknowledge on effects of different factors on the susceptibility to SCC permits to propose valuable mechanisms on crack advancement. The reliable mechanism of cracking gives a possibility to propose the optimum chemical composition and thermal treatment conditions resulting in microstructure the most suitable for real environmental condition and stress state.","PeriodicalId":14103,"journal":{"name":"International Journal of Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85710091","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}
Pub Date : 2019-06-01DOI: 10.17706/ijmse.2019.7.2.34-39
Tripob Longprang, Dolrudee Jaruwat, P. Udomsap, N. Chollacoop, A. Eiad-ua
Nanoporous support materials were successfully synthesized from biomass via hydrothermal carbonization with base additives. This research study the effect of hydrothermal temperature (160-200 °C), hydrothermal time (4-24 h) and influence of base additive (NaOH, KOH, Na2CO3 and K2CO3) have been chosen in order to improve the surface structure. The samples have been characterized by scanning electron microscopy, nitrogen sorption, Fourier transform infrared spectroscopy and X-ray diffraction. The experimental results revealed that hydrothermal carbonization process and acid addition have effect on the properties of catalyst support. The results indicated that hydrothermal process at 200°C for 12 h and activation with KOH at 900°C for 2 h, exhibited the highest surface area, porosity and pore volume leading to increased distribution of metal on the carbon support.
{"title":"Influence of Base Additive on Nanoporous Carbon Materials via HTC for Catalyst Support","authors":"Tripob Longprang, Dolrudee Jaruwat, P. Udomsap, N. Chollacoop, A. Eiad-ua","doi":"10.17706/ijmse.2019.7.2.34-39","DOIUrl":"https://doi.org/10.17706/ijmse.2019.7.2.34-39","url":null,"abstract":"Nanoporous support materials were successfully synthesized from biomass via hydrothermal carbonization with base additives. This research study the effect of hydrothermal temperature (160-200 °C), hydrothermal time (4-24 h) and influence of base additive (NaOH, KOH, Na2CO3 and K2CO3) have been chosen in order to improve the surface structure. The samples have been characterized by scanning electron microscopy, nitrogen sorption, Fourier transform infrared spectroscopy and X-ray diffraction. The experimental results revealed that hydrothermal carbonization process and acid addition have effect on the properties of catalyst support. The results indicated that hydrothermal process at 200°C for 12 h and activation with KOH at 900°C for 2 h, exhibited the highest surface area, porosity and pore volume leading to increased distribution of metal on the carbon support.","PeriodicalId":14103,"journal":{"name":"International Journal of Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83815568","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}
Pub Date : 2019-03-01DOI: 10.17706/ijmse.2019.7.1.20-25
R. Edwin, F. Balany, T. S. Putri, I. P. Tamburaka
This research studies the use of waste copper slag as a cement replacement in high-performance concrete (HPC). To obtain two level of fineness, the copper slag was milled using a ball mill. A mixture was prepared with different percentages of copper slag ranging from 0% to 40% in steps of 10%. To obtain the desired workability, a superplasticizer was used for the mixture using water to cement ratio of 0.3. Specific surface area (SSA) of the copper slag was assessed using the Blaine permeability test. The results obtained, showed that the strength of concretes with different copper slag proportions was comparable to or even better than the reference mixture at 56 days. The heavy metal content of copper slag can be solidified/stabilized in concrete, since they did not exceed the Indonesian Environmentally Regulation on the Management of the Waste of Hazardous.
{"title":"The Use of Granulated Copper Slag as Cement Replacement in High-Performance Concrete","authors":"R. Edwin, F. Balany, T. S. Putri, I. P. Tamburaka","doi":"10.17706/ijmse.2019.7.1.20-25","DOIUrl":"https://doi.org/10.17706/ijmse.2019.7.1.20-25","url":null,"abstract":"This research studies the use of waste copper slag as a cement replacement in high-performance concrete (HPC). To obtain two level of fineness, the copper slag was milled using a ball mill. A mixture was prepared with different percentages of copper slag ranging from 0% to 40% in steps of 10%. To obtain the desired workability, a superplasticizer was used for the mixture using water to cement ratio of 0.3. Specific surface area (SSA) of the copper slag was assessed using the Blaine permeability test. The results obtained, showed that the strength of concretes with different copper slag proportions was comparable to or even better than the reference mixture at 56 days. The heavy metal content of copper slag can be solidified/stabilized in concrete, since they did not exceed the Indonesian Environmentally Regulation on the Management of the Waste of Hazardous.","PeriodicalId":14103,"journal":{"name":"International Journal of Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79183206","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}
Pub Date : 2019-03-01DOI: 10.17706/ijmse.2019.7.1.1-9
Zainal Abidin Akasah, Hayana Dullah, N. Soh, N. A. Guntor
Cement bonded fibreboards have been extensively used mainly in the construction of buildings in numerous countries. Most commonly used materials to fabricate the cement boards are wood. Therefore, due to the depletion of wood resources, the potential of Oil Palm Empty Fruit Bunch Fibre (OPEFB) as wood replacement for cement boards production is explored in this study as one of the materials for sustainable retrofit building. The main obstacle for Empty Fruit Bunch (EFB) fibre cement composite manufacturing is the chemical incompatibility between fibre and cement, which inhibits cement setting and hardening. In this study, EFB fibre was then treated with 0.4%, 1% and 4% of NaOH for EFB-CB fabrication and chemical accelerator which is calcium chloride (CaCl2) was used at 0.1%, 0.2%, 0.3% and 4% based on cement weight. Physical and mechanical properties were observed in this study. The result indicated that the best percentage of NaOH is 1% as pre-treatment for the fibres, meanwhile minimum percentage of 0.3% and 0.4% CaCl2 should be consider as cement accelerator in board production. Other than that, the minimum requirements for physical and mechanical properties were met by EFB fibre treated with 4% NaOH with or without cement accelerators.
{"title":"Physical and Mechanical Properties of Empty Fruit Bunch Fibre-Cement Bonded Fibreboard for Sustainable Retrofit Building","authors":"Zainal Abidin Akasah, Hayana Dullah, N. Soh, N. A. Guntor","doi":"10.17706/ijmse.2019.7.1.1-9","DOIUrl":"https://doi.org/10.17706/ijmse.2019.7.1.1-9","url":null,"abstract":"Cement bonded fibreboards have been extensively used mainly in the construction of buildings in numerous countries. Most commonly used materials to fabricate the cement boards are wood. Therefore, due to the depletion of wood resources, the potential of Oil Palm Empty Fruit Bunch Fibre (OPEFB) as wood replacement for cement boards production is explored in this study as one of the materials for sustainable retrofit building. The main obstacle for Empty Fruit Bunch (EFB) fibre cement composite manufacturing is the chemical incompatibility between fibre and cement, which inhibits cement setting and hardening. In this study, EFB fibre was then treated with 0.4%, 1% and 4% of NaOH for EFB-CB fabrication and chemical accelerator which is calcium chloride (CaCl2) was used at 0.1%, 0.2%, 0.3% and 4% based on cement weight. Physical and mechanical properties were observed in this study. The result indicated that the best percentage of NaOH is 1% as pre-treatment for the fibres, meanwhile minimum percentage of 0.3% and 0.4% CaCl2 should be consider as cement accelerator in board production. Other than that, the minimum requirements for physical and mechanical properties were met by EFB fibre treated with 4% NaOH with or without cement accelerators.","PeriodicalId":14103,"journal":{"name":"International Journal of Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85918614","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}
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