Pub Date : 2023-01-01DOI: 10.4236/jmmce.2023.111001
Sarah Glasser, A. J. Craig, F. Tolea, M. Sofronie, J. Aitken, M. Sorescu
{"title":"Synthesis and Characterization of Gadolinium Oxide-Hematite Magnetic Ceramic Nanostructures","authors":"Sarah Glasser, A. J. Craig, F. Tolea, M. Sofronie, J. Aitken, M. Sorescu","doi":"10.4236/jmmce.2023.111001","DOIUrl":"https://doi.org/10.4236/jmmce.2023.111001","url":null,"abstract":"","PeriodicalId":16488,"journal":{"name":"Journal of Minerals and Materials Characterization and Engineering","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73096935","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 : 2023-01-01DOI: 10.4236/jmmce.2023.112003
Sean Rose, Dexter Siu, Jd Zhu, Reem Roufail
{"title":"Auxetics in Biomedical Applications: A Review","authors":"Sean Rose, Dexter Siu, Jd Zhu, Reem Roufail","doi":"10.4236/jmmce.2023.112003","DOIUrl":"https://doi.org/10.4236/jmmce.2023.112003","url":null,"abstract":"","PeriodicalId":16488,"journal":{"name":"Journal of Minerals and Materials Characterization and Engineering","volume":"118 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91350319","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 : 2023-01-01DOI: 10.4236/jmmce.2023.111002
R. Guardián, I. Rosales-Cadena, Constancio Diaz-Reyes, J. A. Ruiz-Ochoa
{"title":"Wear Evaluation of Copper-Nickel-Aluminum Alloys under Extreme Conditions","authors":"R. Guardián, I. Rosales-Cadena, Constancio Diaz-Reyes, J. A. Ruiz-Ochoa","doi":"10.4236/jmmce.2023.111002","DOIUrl":"https://doi.org/10.4236/jmmce.2023.111002","url":null,"abstract":"","PeriodicalId":16488,"journal":{"name":"Journal of Minerals and Materials Characterization and Engineering","volume":"99 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86098286","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 : 2023-01-01DOI: 10.4236/jmmce.2023.115014
Seke Vangu Max, Clement Nzau Umba Di Mbudi, Makanzu Imwangana Fils, Seke Makunga Daudet, Efoto Eale Louis
This study evaluates the pozzolanicity of Nyiragongo volcano lava flows in Congo by an indirect method using mortars with different rock powder proportions. The clinker used is a locally produced alite clinker, whose chemical and mineralogical composition was determined by XRF, Bogue and Taylor formulas. The lava flows were collected from the 2002, 2010 and 2021 eruption sites, and were characterized by XRF, CIPW normative mineralogy and geomechanical tests. The results show that Nyiragongo rocks are ultrabasic, silica- and alkali-rich, and contain minerals like nepheline, wollastonite and leucite. They satisfy the natural pozzolan criterion, and have pozzolanic activity indices above 70%. These rocks also have high RC and LA resistances, ranging from 190 MPa to 45 MPa, and from 18% to 32.6%, respectively. The rock powder addition in the mortars reduces mechanical resistances and increases setting times, except for a 5% replacement rate, which speeds up hardening. Nyiragongo lava can be used as a pozzolanic addition to produce a CEM II/B-P 32.5 cement.
{"title":"Influence of the Partial Substitution of Industrial Clinker by Volcanic Lava Powder from Nyiragongo Volcano on the Physical Properties of Mortars","authors":"Seke Vangu Max, Clement Nzau Umba Di Mbudi, Makanzu Imwangana Fils, Seke Makunga Daudet, Efoto Eale Louis","doi":"10.4236/jmmce.2023.115014","DOIUrl":"https://doi.org/10.4236/jmmce.2023.115014","url":null,"abstract":"This study evaluates the pozzolanicity of Nyiragongo volcano lava flows in Congo by an indirect method using mortars with different rock powder proportions. The clinker used is a locally produced alite clinker, whose chemical and mineralogical composition was determined by XRF, Bogue and Taylor formulas. The lava flows were collected from the 2002, 2010 and 2021 eruption sites, and were characterized by XRF, CIPW normative mineralogy and geomechanical tests. The results show that Nyiragongo rocks are ultrabasic, silica- and alkali-rich, and contain minerals like nepheline, wollastonite and leucite. They satisfy the natural pozzolan criterion, and have pozzolanic activity indices above 70%. These rocks also have high RC and LA resistances, ranging from 190 MPa to 45 MPa, and from 18% to 32.6%, respectively. The rock powder addition in the mortars reduces mechanical resistances and increases setting times, except for a 5% replacement rate, which speeds up hardening. Nyiragongo lava can be used as a pozzolanic addition to produce a CEM II/B-P 32.5 cement.","PeriodicalId":16488,"journal":{"name":"Journal of Minerals and Materials Characterization and Engineering","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135441074","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 : 2023-01-01DOI: 10.4236/jmmce.2023.112005
{"title":"State of Knowledge on Starch as an Alternative Solution to Petrochemical Resources—A Review","authors":"","doi":"10.4236/jmmce.2023.112005","DOIUrl":"https://doi.org/10.4236/jmmce.2023.112005","url":null,"abstract":"","PeriodicalId":16488,"journal":{"name":"Journal of Minerals and Materials Characterization and Engineering","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89319903","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 : 2023-01-01DOI: 10.4236/jmmce.2023.115015
María Luisa Moguel Pacheco, Fermín Castillo Mejía, Yamilet Rodríguez Lazcano, Andrés Aguilar Negrete, Arturo Molina Ocampo, Jesús Mario Colín de la Cruz
There are different types of pollutants that are harmful to the environment, including smog, chemicals that are dumped into rivers, scrap tires, etc. The latter have the particularity that it is not possible to recycle them to manufacture new tires. In the present work, hydraulic concrete plates added with waste tire rubber were manufactured to modify their sound absorption capacity. It was found that the rubber additions produce changes in the density of the material and in the sound absorption capacity. When the material is exposed to high-frequency sounds that correspond to high-pitched sounds, its absorption capacity increases. On the contrary, when the test frequency is low, that is, bass sounds, the sound absorption capacity decreases. The results obtained in this work suggest that the proposed mixtures are suitable for the possible manufacture of acoustic insulating shields.
{"title":"Determination of the Sound Absorption Capacity of Hydraulic Concrete Mixtures Added with Waste Tire Rubber","authors":"María Luisa Moguel Pacheco, Fermín Castillo Mejía, Yamilet Rodríguez Lazcano, Andrés Aguilar Negrete, Arturo Molina Ocampo, Jesús Mario Colín de la Cruz","doi":"10.4236/jmmce.2023.115015","DOIUrl":"https://doi.org/10.4236/jmmce.2023.115015","url":null,"abstract":"There are different types of pollutants that are harmful to the environment, including smog, chemicals that are dumped into rivers, scrap tires, etc. The latter have the particularity that it is not possible to recycle them to manufacture new tires. In the present work, hydraulic concrete plates added with waste tire rubber were manufactured to modify their sound absorption capacity. It was found that the rubber additions produce changes in the density of the material and in the sound absorption capacity. When the material is exposed to high-frequency sounds that correspond to high-pitched sounds, its absorption capacity increases. On the contrary, when the test frequency is low, that is, bass sounds, the sound absorption capacity decreases. The results obtained in this work suggest that the proposed mixtures are suitable for the possible manufacture of acoustic insulating shields.","PeriodicalId":16488,"journal":{"name":"Journal of Minerals and Materials Characterization and Engineering","volume":"187 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135550308","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 : 2023-01-01DOI: 10.4236/jmmce.2023.113007
E. Tulcanaza
It is well known that the most common methodology for evaluating a mineral asset is the NPV. Most of the mining companies employ this technique for evaluating the expected economic benefits provided by the exploration and exploitation of a mineral deposit. However, companies also wish to know how their assets are creating value through the several exploration and development phases. The purpose being to assess the progressive value of the mineral asset in agreement with the information and data cumulated through the different steps from exploration to project approval. This paper establishes the value of a copper mineral deposit through their successive phases from exploration to feasibility and approval using the options’ binomial nodes frame-work. Results are applied to two copper negotiations for method validation.
{"title":"Appraisal of Engineering Phases of a Mineral Asset: From Exploration to Mine Approval","authors":"E. Tulcanaza","doi":"10.4236/jmmce.2023.113007","DOIUrl":"https://doi.org/10.4236/jmmce.2023.113007","url":null,"abstract":"It is well known that the most common methodology for evaluating a mineral asset is the NPV. Most of the mining companies employ this technique for evaluating the expected economic benefits provided by the exploration and exploitation of a mineral deposit. However, companies also wish to know how their assets are creating value through the several exploration and development phases. The purpose being to assess the progressive value of the mineral asset in agreement with the information and data cumulated through the different steps from exploration to project approval. This paper establishes the value of a copper mineral deposit through their successive phases from exploration to feasibility and approval using the options’ binomial nodes frame-work. Results are applied to two copper negotiations for method validation.","PeriodicalId":16488,"journal":{"name":"Journal of Minerals and Materials Characterization and Engineering","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75955767","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 : 2023-01-01DOI: 10.4236/jmmce.2023.115010
Roberto Fernando Martins, Karl Friehe, Cecília Chaves Guedes e Silva, Dolores Ribeiro Ricci Lazar, Antônio Augusto Couto, Carlos Roberto Camello Lima
{"title":"Study on the Attack of Molten Silicates on Plasma-Sprayed Thermal Barrier Coatings","authors":"Roberto Fernando Martins, Karl Friehe, Cecília Chaves Guedes e Silva, Dolores Ribeiro Ricci Lazar, Antônio Augusto Couto, Carlos Roberto Camello Lima","doi":"10.4236/jmmce.2023.115010","DOIUrl":"https://doi.org/10.4236/jmmce.2023.115010","url":null,"abstract":"","PeriodicalId":16488,"journal":{"name":"Journal of Minerals and Materials Characterization and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78523745","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 : 2022-01-01DOI: 10.4236/jmmce.2022.106033
D. Espejel-García, V. Espejel-García, A. Villalobos-Aragón
{"title":"Chemical Characterization of Slags from an Old Smelter in Chihuahua, Mexico","authors":"D. Espejel-García, V. Espejel-García, A. Villalobos-Aragón","doi":"10.4236/jmmce.2022.106033","DOIUrl":"https://doi.org/10.4236/jmmce.2022.106033","url":null,"abstract":"","PeriodicalId":16488,"journal":{"name":"Journal of Minerals and Materials Characterization and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74286494","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 : 2022-01-01DOI: 10.4236/jmmce.2022.101002
Anandaraj Louis, Jothi Lakshmanan
{"title":"Synthesis, Growth and Characterization of Benzophenone Added Sodium Acid Phthalate Crystal—A Potential Material for Nonlinear Optical Applications","authors":"Anandaraj Louis, Jothi Lakshmanan","doi":"10.4236/jmmce.2022.101002","DOIUrl":"https://doi.org/10.4236/jmmce.2022.101002","url":null,"abstract":"","PeriodicalId":16488,"journal":{"name":"Journal of Minerals and Materials Characterization and Engineering","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81406435","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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