Pub Date : 2019-12-01DOI: 10.17706/ijmse.2018.6.4.114-125
L. Rozumová, Barbora Legátová
Screening a new biosorbent with low-cost and high efficiency from a biological waste material is a key to the adsorption of heavy metal ions from wastewater. The biosorbent from industrial hemp hurds was prepared from waste materials. In this study, the potential of this biosorbent has been investigated in removing of Cu(II) ions from the aqueous solution under optimized conditions. Waste material biosorbent was activated by hydrochloric acid in room temperature. The synthesized biosorbent was characterized by SEM, EDX, specific surface area and pore size distribution. The impact of pH, contact time and initial concentration on the pollutant removal efficiency was observed. The sorption kinetics were evaluated with pseudo-first and pseudo-second order kinetic models. Adsorption process has been modeled by the Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms using linear regression. The results of this study indicated that the application of hemp hurds of Cannabis sativa waste material as a biosorbent is highly effective for the removal copper ions from wastewater.
{"title":"Biosorbent from Industrial Hemp Hurds for Copper Ions Removal","authors":"L. Rozumová, Barbora Legátová","doi":"10.17706/ijmse.2018.6.4.114-125","DOIUrl":"https://doi.org/10.17706/ijmse.2018.6.4.114-125","url":null,"abstract":"Screening a new biosorbent with low-cost and high efficiency from a biological waste material is a key to the adsorption of heavy metal ions from wastewater. The biosorbent from industrial hemp hurds was prepared from waste materials. In this study, the potential of this biosorbent has been investigated in removing of Cu(II) ions from the aqueous solution under optimized conditions. Waste material biosorbent was activated by hydrochloric acid in room temperature. The synthesized biosorbent was characterized by SEM, EDX, specific surface area and pore size distribution. The impact of pH, contact time and initial concentration on the pollutant removal efficiency was observed. The sorption kinetics were evaluated with pseudo-first and pseudo-second order kinetic models. Adsorption process has been modeled by the Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms using linear regression. The results of this study indicated that the application of hemp hurds of Cannabis sativa waste material as a biosorbent is highly effective for the removal copper ions from wastewater.","PeriodicalId":16171,"journal":{"name":"Journal of materials science & engineering","volume":"40 1","pages":"114-125"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87057472","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 : 2019-12-01DOI: 10.17706/ijmse.2018.6.4.93-98
Hitoo Tokunaga
{"title":"Effect of Alloy Composition on Microstructure and Martensitic Transformation Temperature of a Zr-Cu Shape Memory Alloy","authors":"Hitoo Tokunaga","doi":"10.17706/ijmse.2018.6.4.93-98","DOIUrl":"https://doi.org/10.17706/ijmse.2018.6.4.93-98","url":null,"abstract":"","PeriodicalId":16171,"journal":{"name":"Journal of materials science & engineering","volume":"9 1","pages":"93-98"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75266046","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 : 2019-12-01DOI: 10.17706/ijmse.2018.6.4.106-113
Khan Habeeb Ur Rahman, M. M. Rahman
In the present work, a combined sensible heat storage-latent heat storage (SHS-LHS) system has been evaluated with Aragonite, which belongs to the category of Limestone, as the sensible heat storage material and Potassium Hydroxide (KOH) as the latent heat storage material. The performance of the combined sensible-latent heat storage system is analyzed and compared with a sensible only heat storage system by evaluating key parameters such as Heat Transfer Fluid (HTF) exit temperature, average temperature of the heat storage system and the amount of energy stored and retrieved during charging and discharging respectively. It was found that a combined sensible-latent heat storage system stabilizes the HTF exit temperature to around the temperature of the phase change material (PCM) during the discharge cycle. This has also been corroborated by other researchers in their experimental work. It was also found for both the systems (sensible and combined) that the larger the pellet diameter, the longer is the time taken by the Thermal Energy Storage System (TESS) to reach the maximum operating temperature. For both the systems, the temperatures remain at the maximum operating temperature for a longer duration at lower HTF flow rates. This helps in maintaining the stability of the temperatures in a TESS for a longer duration, which in turn, to a limited extent, offsets the losses caused due to a rapid reduction in the outlet temperature in a sensible TESS. The amount of energy retrieved from the combined system is larger than the energy that is retrieved from a sensible only TESS. All these findings point to the fact that using a combined sensible-latent TESS is highly advantageous as compared to a sensible only TESS.
{"title":"Evaluating the Performance of a Combined SHS-LHS System","authors":"Khan Habeeb Ur Rahman, M. M. Rahman","doi":"10.17706/ijmse.2018.6.4.106-113","DOIUrl":"https://doi.org/10.17706/ijmse.2018.6.4.106-113","url":null,"abstract":"In the present work, a combined sensible heat storage-latent heat storage (SHS-LHS) system has been evaluated with Aragonite, which belongs to the category of Limestone, as the sensible heat storage material and Potassium Hydroxide (KOH) as the latent heat storage material. The performance of the combined sensible-latent heat storage system is analyzed and compared with a sensible only heat storage system by evaluating key parameters such as Heat Transfer Fluid (HTF) exit temperature, average temperature of the heat storage system and the amount of energy stored and retrieved during charging and discharging respectively. It was found that a combined sensible-latent heat storage system stabilizes the HTF exit temperature to around the temperature of the phase change material (PCM) during the discharge cycle. This has also been corroborated by other researchers in their experimental work. It was also found for both the systems (sensible and combined) that the larger the pellet diameter, the longer is the time taken by the Thermal Energy Storage System (TESS) to reach the maximum operating temperature. For both the systems, the temperatures remain at the maximum operating temperature for a longer duration at lower HTF flow rates. This helps in maintaining the stability of the temperatures in a TESS for a longer duration, which in turn, to a limited extent, offsets the losses caused due to a rapid reduction in the outlet temperature in a sensible TESS. The amount of energy retrieved from the combined system is larger than the energy that is retrieved from a sensible only TESS. All these findings point to the fact that using a combined sensible-latent TESS is highly advantageous as compared to a sensible only TESS.","PeriodicalId":16171,"journal":{"name":"Journal of materials science & engineering","volume":"263 1","pages":"106-113"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76375809","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}
Pali Kpelou, Ayi Djifa Hounsi, D. Kongnine, T. Aboki, Essowè Mouzou, G. Djeteli, K. Napo
The Bassar iron industry has produced large quantities of steel ingots exceeding local needs and opening up a vast sub regional iron trade network. Bassar blacksmiths of Bitchabe and those of neighboring peoples such as kabiye have transformed these ingots into finished products to feed this trade network. The present work studied the microstructural and mechanical properties of traditional Bassar Steel (BS) forged by Kabiye blacksmiths. The forging process of Kabiye blacksmiths was described. Optical Microscopy (OM), Scanning electron microscopy (SEM), X-ray diffraction (XRD), Vickers microhardness and tensile tests were used to investigate the microstructural and mechanical properties of the forged samples. Optical micrographs indicate a ferritic matrix containing many non-metallic inclusions. Micro-hardness measurement values ranging from 130 to 185 Hv0.3 are measured from the heart to the surface of the Bassar Forged Steel (BFS). This field covers the microhardness values of ferritic steel or very low carbon steel. The tensile strength of the studied forged steel is 148 GPa with a low total strain of 14 %. EDS analysis indicate the presence of Phosphorus in a low proportion.
{"title":"Microstructural and Mechanical Properties of Bassar Forged Steel","authors":"Pali Kpelou, Ayi Djifa Hounsi, D. Kongnine, T. Aboki, Essowè Mouzou, G. Djeteli, K. Napo","doi":"10.12691/AJMSE-7-1-2","DOIUrl":"https://doi.org/10.12691/AJMSE-7-1-2","url":null,"abstract":"The Bassar iron industry has produced large quantities of steel ingots exceeding local needs and opening up a vast sub regional iron trade network. Bassar blacksmiths of Bitchabe and those of neighboring peoples such as kabiye have transformed these ingots into finished products to feed this trade network. The present work studied the microstructural and mechanical properties of traditional Bassar Steel (BS) forged by Kabiye blacksmiths. The forging process of Kabiye blacksmiths was described. Optical Microscopy (OM), Scanning electron microscopy (SEM), X-ray diffraction (XRD), Vickers microhardness and tensile tests were used to investigate the microstructural and mechanical properties of the forged samples. Optical micrographs indicate a ferritic matrix containing many non-metallic inclusions. Micro-hardness measurement values ranging from 130 to 185 Hv0.3 are measured from the heart to the surface of the Bassar Forged Steel (BFS). This field covers the microhardness values of ferritic steel or very low carbon steel. The tensile strength of the studied forged steel is 148 GPa with a low total strain of 14 %. EDS analysis indicate the presence of Phosphorus in a low proportion.","PeriodicalId":16171,"journal":{"name":"Journal of materials science & engineering","volume":"12 1","pages":"7-11"},"PeriodicalIF":0.0,"publicationDate":"2019-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79362831","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}
N. Méité, L. Konan, Bi Irié Hervé Gouré Doubi, D. Soro, I. Lazar, S. Oyetola
This study aims at analyzing the physico-chemical interactions in glycerol-coated cassava starch gels incorporating clay as mineral filler during heating. The physico-chemical and structural characterization of the clay used is composed of 75% kaolinite, 14% quartz and 11% illite. A thermal treatment at 700°C for 1 hour of this kaolinitic clay has allowed strong destructuring of the crystalline structure. The suspensions of glycerol plasticized cassava starch without charge or containing 5% by weight of clay were prepared and then heated at various temperatures between 30°C and 100°C. The suspensions viscosity increases according to the temperature up to a maximum following the penetration of the water molecules inside the starch grains. This phase is followed immediately by a sharp drop in the viscosity, resulting in a granular destructuring and solubilization of the starch grains. The suspensions incorporating metakaolin have a higher viscosity than those incorporating kaolin. The gels incorporating metakaolin have a hight ability to downgrade. The infrared spectroscopy of gels taken at different temperatures show the formation of the inter and intra molecular bonds within the starch granules.
{"title":"Physico-Chemical Behavior of Glycerol-Coated Cassava Starch Gels Incorporating Kaolin and Metakaolin","authors":"N. Méité, L. Konan, Bi Irié Hervé Gouré Doubi, D. Soro, I. Lazar, S. Oyetola","doi":"10.12691/AJMSE-7-1-1","DOIUrl":"https://doi.org/10.12691/AJMSE-7-1-1","url":null,"abstract":"This study aims at analyzing the physico-chemical interactions in glycerol-coated cassava starch gels incorporating clay as mineral filler during heating. The physico-chemical and structural characterization of the clay used is composed of 75% kaolinite, 14% quartz and 11% illite. A thermal treatment at 700°C for 1 hour of this kaolinitic clay has allowed strong destructuring of the crystalline structure. The suspensions of glycerol plasticized cassava starch without charge or containing 5% by weight of clay were prepared and then heated at various temperatures between 30°C and 100°C. The suspensions viscosity increases according to the temperature up to a maximum following the penetration of the water molecules inside the starch grains. This phase is followed immediately by a sharp drop in the viscosity, resulting in a granular destructuring and solubilization of the starch grains. The suspensions incorporating metakaolin have a higher viscosity than those incorporating kaolin. The gels incorporating metakaolin have a hight ability to downgrade. The infrared spectroscopy of gels taken at different temperatures show the formation of the inter and intra molecular bonds within the starch granules.","PeriodicalId":16171,"journal":{"name":"Journal of materials science & engineering","volume":"19 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83678959","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}
O. A. Niasse, Alassane Diaw, M. Niane, N. Mbengue, M. A. Tankhari, P. Olivier, B. Ba
In this paper, we have studied the transparent oxide antireflective effects coatings on solar cell transmission at the n-CdS/p-CdTe heterojunction. We start from the results obtained on the determination of the optical constants by the dielectric function model which takes into account the contribution of the intermediate states. Thus, the transmission is studied to function to epitaxial layers thicknesses of cadmium sulphide CdS and transparent oxide ITO. Our results are compared with those of others authors for different calculation models. Thus, the study is extended to other transparent oxides such as Nb2O5 and Ta2O5 and to observe the effective influence on the quantum yield of the CdS/CdTe photocell. A table linking the transmission and the reflectivity of its various oxides as function to the thickness could thus be established.
{"title":"Comparative Study of the Influence of Antireflective Coatings and Transparent Oxides on a CdS/CdTe Solar Cell","authors":"O. A. Niasse, Alassane Diaw, M. Niane, N. Mbengue, M. A. Tankhari, P. Olivier, B. Ba","doi":"10.12691/AJMSE-6-2-4","DOIUrl":"https://doi.org/10.12691/AJMSE-6-2-4","url":null,"abstract":"In this paper, we have studied the transparent oxide antireflective effects coatings on solar cell transmission at the n-CdS/p-CdTe heterojunction. We start from the results obtained on the determination of the optical constants by the dielectric function model which takes into account the contribution of the intermediate states. Thus, the transmission is studied to function to epitaxial layers thicknesses of cadmium sulphide CdS and transparent oxide ITO. Our results are compared with those of others authors for different calculation models. Thus, the study is extended to other transparent oxides such as Nb2O5 and Ta2O5 and to observe the effective influence on the quantum yield of the CdS/CdTe photocell. A table linking the transmission and the reflectivity of its various oxides as function to the thickness could thus be established.","PeriodicalId":16171,"journal":{"name":"Journal of materials science & engineering","volume":"823 ","pages":"43-48"},"PeriodicalIF":0.0,"publicationDate":"2018-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91512737","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}
Hydrogels from either 2-acrylamido-2-methylpropane sulfonic acid (AMPS) or 2-hydroxyl ethyl methacrylate (HEMA) have been prepared by gamma radiation at irradiation dose of 10 kGy. Different volume ratio (v/v) of the starting materials were used to obtain crosslinked hydrogels of variable compositions and crosslink density. UV-VIS absorption spectra indicated that there is a variation in intensity as well as in optical energy gap with different doping levels. Therefore, values of direct and indirect energy gaps were calculated and discussed. The reflectance and transmittance were collected for the as-prepared hydrogels and analyzed in the incident photon energy range from 0.1 to 1.6 eV at a temperature range 300 to 500 K. The optical investigation revealed that the optical transition is directly allowed.
{"title":"Investigation of Optical and Electrical Properties of 2-acrylamido-2-methyl Propane Sulfonic Acid/2-Hydroxy Ethyl Methacrylate (AMPS/HEMA) Hydrogel Prepared by Gamma Irradiation","authors":"H. Ghulman","doi":"10.12691/AJMSE-6-2-2","DOIUrl":"https://doi.org/10.12691/AJMSE-6-2-2","url":null,"abstract":"Hydrogels from either 2-acrylamido-2-methylpropane sulfonic acid (AMPS) or 2-hydroxyl ethyl methacrylate (HEMA) have been prepared by gamma radiation at irradiation dose of 10 kGy. Different volume ratio (v/v) of the starting materials were used to obtain crosslinked hydrogels of variable compositions and crosslink density. UV-VIS absorption spectra indicated that there is a variation in intensity as well as in optical energy gap with different doping levels. Therefore, values of direct and indirect energy gaps were calculated and discussed. The reflectance and transmittance were collected for the as-prepared hydrogels and analyzed in the incident photon energy range from 0.1 to 1.6 eV at a temperature range 300 to 500 K. The optical investigation revealed that the optical transition is directly allowed.","PeriodicalId":16171,"journal":{"name":"Journal of materials science & engineering","volume":"99 1","pages":"31-36"},"PeriodicalIF":0.0,"publicationDate":"2018-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89540963","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 : 2018-08-28DOI: 10.17265/2161-6221/2018.7-8.004
Steffen Müller-Probandt
We associate a variety of innovations with the term “Industry 4.0”. The pioneer of many 4.0 modifications forms the basis for the trend towards the integrated digitization of many areas of life. The field of research requires from the pilot plants to develop new pioneering fibers high flexibility of its experimental facilities to allow new insights in the laboratory and prototype facilities at a reasonable cost. Added to this is the desire to closely track all process data and prepare it in a timely manner. Mobile devices now allow the researcher to vary parameters close to the process during observation. In the following lecture the question will be discussed which of the many definitions and varieties of “Industry 4.0” can be meaningfully transferred to the field of research. In doing so, we are guided by the findings that have been gained with modularized spinning systems in recent years. The respective spinning processes require different analysis focuses and different conversion options. The digital world must follow the real demands of the analog world. In addition to the elegance functions, it must be ensured that the control functions of the process meet the requirements of machine safety. Digitization allows intelligent analyzes to be developed independently of the various spinning processes and can be flexibly adapted to the respective process conditions. The variability of spin systems depends on the intelligent modularization of individual functions and the physics that require the spinning conditions. Finally, some examples of modular prototype systems are presented, and the limits of variability are discussed.
{"title":"From Industry 4.0 to Research 4.0. Development of High Performance Fibers in the Light of Digitization","authors":"Steffen Müller-Probandt","doi":"10.17265/2161-6221/2018.7-8.004","DOIUrl":"https://doi.org/10.17265/2161-6221/2018.7-8.004","url":null,"abstract":"We associate a variety of innovations with the term “Industry 4.0”. The pioneer of many 4.0 modifications forms the basis for the trend towards the integrated digitization of many areas of life. The field of research requires from the pilot plants to develop new pioneering fibers high flexibility of its experimental facilities to allow new insights in the laboratory and prototype facilities at a reasonable cost. Added to this is the desire to closely track all process data and prepare it in a timely manner. Mobile devices now allow the researcher to vary parameters close to the process during observation. In the following lecture the question will be discussed which of the many definitions and varieties of “Industry 4.0” can be meaningfully transferred to the field of research. In doing so, we are guided by the findings that have been gained with modularized spinning systems in recent years. The respective spinning processes require different analysis focuses and different conversion options. The digital world must follow the real demands of the analog world. In addition to the elegance functions, it must be ensured that the control functions of the process meet the requirements of machine safety. Digitization allows intelligent analyzes to be developed independently of the various spinning processes and can be flexibly adapted to the respective process conditions. The variability of spin systems depends on the intelligent modularization of individual functions and the physics that require the spinning conditions. Finally, some examples of modular prototype systems are presented, and the limits of variability are discussed.","PeriodicalId":16171,"journal":{"name":"Journal of materials science & engineering","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83182555","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}
Djimba Niane, O. Diagne, A. Ehemba, M. Socé, M. Dieng
In this paper, we study the phenomena of generations and recombination of a CIGSe solar cell under the influence of the thickness of a potassium fluoride (KF) layer. The different thicknesses taken are respectively 15 nm, 30 nm and 45 nm and the doping rate of the base has been fixed at 1016cm-3. The simulations made with the SCAPS-1D software show, on the one hand, a decrease in the emission rate and an increase in the electron capture rate; on the other hand, an increase in the rate of emission and capture of the holes respectively, as the thickness of the KF layer increases. Furthermore, we note that the rate of recombination of the carriers increases slightly with the thickness of KF at the CIGSe layer caused by a passivation of the defects.
{"title":"Generation and Recombination of a CIGSe Solar Cell under the Influence of the Thickness of a Potassium Fluoride (KF) Layer","authors":"Djimba Niane, O. Diagne, A. Ehemba, M. Socé, M. Dieng","doi":"10.12691/AJMSE-6-2-1","DOIUrl":"https://doi.org/10.12691/AJMSE-6-2-1","url":null,"abstract":"In this paper, we study the phenomena of generations and recombination of a CIGSe solar cell under the influence of the thickness of a potassium fluoride (KF) layer. The different thicknesses taken are respectively 15 nm, 30 nm and 45 nm and the doping rate of the base has been fixed at 1016cm-3. The simulations made with the SCAPS-1D software show, on the one hand, a decrease in the emission rate and an increase in the electron capture rate; on the other hand, an increase in the rate of emission and capture of the holes respectively, as the thickness of the KF layer increases. Furthermore, we note that the rate of recombination of the carriers increases slightly with the thickness of KF at the CIGSe layer caused by a passivation of the defects.","PeriodicalId":16171,"journal":{"name":"Journal of materials science & engineering","volume":"1 1","pages":"26-30"},"PeriodicalIF":0.0,"publicationDate":"2018-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89812700","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}
This paper deals with the analysis of surface roughness in turning GFRP composite through experimental investigation and Response surface methodology (RSM) based optimization modeling incorporated with Genetic Algorithm (GA). The investigation has been carried out in dry condition where cutting speed, feed rate and depth of cut has been considered as input parameters to check the desired surface roughness response. This experiment has been designed using RSM central composite design (CCD). Afterwards the response model has been formulated using quadratic RSM model and Genetic algorithm. The correlation coefficient value of 0.9989 suggests the adequacy of the formulated model. Main effect plot and 3D surface plot have been used to evaluate the effect of input parameters followed by Desirability Function Analysis (DFA) through response surface equation of the machining response. Machining parameters were then optimized using GA approach which indicated that to attain advantageous machining response cutting speed and feed rate need to be at 78 m/min and 0.10 mm/rev respectively. These findings are also analogous with the result of DFA which validates both the model. By employing the model, surface roughness of as minimum as 0.056 µm can be achieved.
{"title":"Optimization of Machining Parameter for Surface Roughness in Turning GFRP Composite Using RSM-GA Approach","authors":"Md. Rezaul Karim, S. Ahmed, S. Salahuddin","doi":"10.12691/AJMSE-6-1-4","DOIUrl":"https://doi.org/10.12691/AJMSE-6-1-4","url":null,"abstract":"This paper deals with the analysis of surface roughness in turning GFRP composite through experimental investigation and Response surface methodology (RSM) based optimization modeling incorporated with Genetic Algorithm (GA). The investigation has been carried out in dry condition where cutting speed, feed rate and depth of cut has been considered as input parameters to check the desired surface roughness response. This experiment has been designed using RSM central composite design (CCD). Afterwards the response model has been formulated using quadratic RSM model and Genetic algorithm. The correlation coefficient value of 0.9989 suggests the adequacy of the formulated model. Main effect plot and 3D surface plot have been used to evaluate the effect of input parameters followed by Desirability Function Analysis (DFA) through response surface equation of the machining response. Machining parameters were then optimized using GA approach which indicated that to attain advantageous machining response cutting speed and feed rate need to be at 78 m/min and 0.10 mm/rev respectively. These findings are also analogous with the result of DFA which validates both the model. By employing the model, surface roughness of as minimum as 0.056 µm can be achieved.","PeriodicalId":16171,"journal":{"name":"Journal of materials science & engineering","volume":"28 1","pages":"18-25"},"PeriodicalIF":0.0,"publicationDate":"2018-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79173759","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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