Aerogels, the lowest-density solids in the world, have very effective thermal insulation properties with their extremely high surface area and porous structure. Recently, there has been an increasing interest in using aerogels in the textile industry, especially to obtain functional and technical textiles. In this study, thermal and solar properties of polyester fabrics coated at different concentrations (1 %, 2 %, and 4 %) of aerogels with different particle sizes (~ 8 µm, 0 – 80 µm, 0 – 0.5 mm) were investigated. It was observed that the aerogel particle size and concentration had a significant effect on the thermal and solar properties, and the lowest thermal conductivity coefficient and thermal resistance values (0.036 W/mK and 14.33 m2 K/W, respectively) appeared at the largest particle size and maximum concentration. In contrast, the solar reflectance values of the coated samples decrease up to 62 % with increasing aerogel particle size. In a conclusion, the coating method with aerogel powders could be applied to improve the thermal insulation and solar protection properties of mainly curtains, tents, tarpaulins, and sportswear fabrics.
{"title":"Investigation of Thermal and Solar Properties of Aerogel Powder Coated Textiles","authors":"Atike Köken, Mehmet Kanık","doi":"10.5755/j02.ms.32869","DOIUrl":"https://doi.org/10.5755/j02.ms.32869","url":null,"abstract":"Aerogels, the lowest-density solids in the world, have very effective thermal insulation properties with their extremely high surface area and porous structure. Recently, there has been an increasing interest in using aerogels in the textile industry, especially to obtain functional and technical textiles. In this study, thermal and solar properties of polyester fabrics coated at different concentrations (1 %, 2 %, and 4 %) of aerogels with different particle sizes (~ 8 µm, 0 – 80 µm, 0 – 0.5 mm) were investigated. It was observed that the aerogel particle size and concentration had a significant effect on the thermal and solar properties, and the lowest thermal conductivity coefficient and thermal resistance values (0.036 W/mK and 14.33 m2 K/W, respectively) appeared at the largest particle size and maximum concentration. In contrast, the solar reflectance values of the coated samples decrease up to 62 % with increasing aerogel particle size. In a conclusion, the coating method with aerogel powders could be applied to improve the thermal insulation and solar protection properties of mainly curtains, tents, tarpaulins, and sportswear fabrics.","PeriodicalId":49875,"journal":{"name":"Materials Science-Poland","volume":"5 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41259220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper reports the experimental investigation conducted on unwrapped and latex wrapped cold-formed steel column. Various column cross-sections are subjected to repeated lateral loading till failure. All the columns were observed to fail in local buckling. The column cross-section dimension, provision of interior and exterior lip, and the latex wrapping of the columns influenced the lateral load to failure. Increasing the web length of a column section from 100 to 200 mm increased the load-carrying capacity of the column by 70 to 100 %. The local buckling was initiated in the flange portion of the column. The column section with no lip and interior lip exhibited inward buckling of the flange. The column with exterior lip exhibited outward buckling. The provision of lip and latex wrapping did not influence the initial load-displacement behavior of the columns. However, it increased the load-carrying capacity of the sections. Energy absorption index and ductility factor were calculated and the effect of latex wrapping of the columns on these parameters was evident.
{"title":"Effect of Lateral Load on Local Buckling of Latex Wrapped Cold Formed Steel Columns","authors":"Rajivgandhi Narasimhan, J. H. Henderson","doi":"10.5755/j02.ms.31876","DOIUrl":"https://doi.org/10.5755/j02.ms.31876","url":null,"abstract":"This paper reports the experimental investigation conducted on unwrapped and latex wrapped cold-formed steel column. Various column cross-sections are subjected to repeated lateral loading till failure. All the columns were observed to fail in local buckling. The column cross-section dimension, provision of interior and exterior lip, and the latex wrapping of the columns influenced the lateral load to failure. Increasing the web length of a column section from 100 to 200 mm increased the load-carrying capacity of the column by 70 to 100 %. The local buckling was initiated in the flange portion of the column. The column section with no lip and interior lip exhibited inward buckling of the flange. The column with exterior lip exhibited outward buckling. The provision of lip and latex wrapping did not influence the initial load-displacement behavior of the columns. However, it increased the load-carrying capacity of the sections. Energy absorption index and ductility factor were calculated and the effect of latex wrapping of the columns on these parameters was evident.","PeriodicalId":49875,"journal":{"name":"Materials Science-Poland","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44143303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1007/s11003-023-00696-0
D. Ushchapovskiy, O. V. Liniucheva, A. Kushmyruk, R. Redko, H. Y. Pidvashetskyi
{"title":"Comparative Study of Corrosion Activity of Bright and Matte Nickel Coatings in Solutions and Vapor of Acetic Acid","authors":"D. Ushchapovskiy, O. V. Liniucheva, A. Kushmyruk, R. Redko, H. Y. Pidvashetskyi","doi":"10.1007/s11003-023-00696-0","DOIUrl":"https://doi.org/10.1007/s11003-023-00696-0","url":null,"abstract":"","PeriodicalId":49875,"journal":{"name":"Materials Science-Poland","volume":"58 1","pages":"540 - 547"},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46302763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1007/s11003-023-00690-6
G. Stovpchenko, L. Lisova, L. Medovar, I. Goncharov
{"title":"Thermodynamic and Physical Properties of CaF2–(Al2O3–TiO2–MgO) System Slags for Electroslag Remelting of Inconel 18 Alloy","authors":"G. Stovpchenko, L. Lisova, L. Medovar, I. Goncharov","doi":"10.1007/s11003-023-00690-6","DOIUrl":"https://doi.org/10.1007/s11003-023-00690-6","url":null,"abstract":"","PeriodicalId":49875,"journal":{"name":"Materials Science-Poland","volume":"58 1","pages":"494 - 504"},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46720172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.31044/1684-579x-2023-0-3-3-11
M. Frolova, A. Ayzenshtadt, V. Danilov, T. Makhova
A thermodynamic criterion – surface activity – is proposed in order to describe the reactivity of powder materials obtained by mechanical grinding. It is shown that there is a functional relationship between the surface activity calculated from the specific surface values of powder materials determined by gas trapping method and the specific surface of these systems determined by gas permeability method, which allows us to conclude about the effectiveness of mechanical activation of raw materials systems.
{"title":"MINERAL POWDERS: ACTIVITY AND SPECIFIC SURFACE AREA","authors":"M. Frolova, A. Ayzenshtadt, V. Danilov, T. Makhova","doi":"10.31044/1684-579x-2023-0-3-3-11","DOIUrl":"https://doi.org/10.31044/1684-579x-2023-0-3-3-11","url":null,"abstract":"A thermodynamic criterion – surface activity – is proposed in order to describe the reactivity of powder materials obtained by mechanical grinding. It is shown that there is a functional relationship between the surface activity calculated from the specific surface values of powder materials determined by gas trapping method and the specific surface of these systems determined by gas permeability method, which allows us to conclude about the effectiveness of mechanical activation of raw materials systems.","PeriodicalId":49875,"journal":{"name":"Materials Science-Poland","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69510517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1007/s11003-023-00688-0
I. Kovalchuk, R. M. Yurkeych, V. Posuvailo
{"title":"Crystal Structure of Oxide Ceramic Coatings Obtained On Alloys with High Silicon Content","authors":"I. Kovalchuk, R. M. Yurkeych, V. Posuvailo","doi":"10.1007/s11003-023-00688-0","DOIUrl":"https://doi.org/10.1007/s11003-023-00688-0","url":null,"abstract":"","PeriodicalId":49875,"journal":{"name":"Materials Science-Poland","volume":"58 1","pages":"480 - 487"},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48987824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.31044/1684-579x-2023-0-4-26-31
Z. M. Zakhrabekova, V. K. Kyazimova, E. Islamzade, A. Alekperov
{"title":"Concentration profile of gallium and antimony impurities in Ge1-x—Six and Ge1-x—Six crystals grown by hybrid method","authors":"Z. M. Zakhrabekova, V. K. Kyazimova, E. Islamzade, A. Alekperov","doi":"10.31044/1684-579x-2023-0-4-26-31","DOIUrl":"https://doi.org/10.31044/1684-579x-2023-0-4-26-31","url":null,"abstract":"","PeriodicalId":49875,"journal":{"name":"Materials Science-Poland","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69510522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1007/s11003-023-00697-z
V. Zuyok, O. Kuprin, I. Klymenko, H. M. Tolmachova, M. Tretiakov, R. O. Rud, Ya.A. Kushtym, I. V. Dykyi, I. Shevchenko, V. Shtefan
{"title":"Heat Resistance of Zr–1Nb Alloy Claddings in Water Vapor after Ion-Plasma Nitriding","authors":"V. Zuyok, O. Kuprin, I. Klymenko, H. M. Tolmachova, M. Tretiakov, R. O. Rud, Ya.A. Kushtym, I. V. Dykyi, I. Shevchenko, V. Shtefan","doi":"10.1007/s11003-023-00697-z","DOIUrl":"https://doi.org/10.1007/s11003-023-00697-z","url":null,"abstract":"","PeriodicalId":49875,"journal":{"name":"Materials Science-Poland","volume":"58 1","pages":"548 - 553"},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41808490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1007/s11003-023-00681-7
M. Savruk, L. Y. Onyshko, O. I. Kvasniuk
{"title":"Stress Distribution Near Sharp and Rounded V-Notches In Anisotropic Elastic Body Under Antiplane Strain","authors":"M. Savruk, L. Y. Onyshko, O. I. Kvasniuk","doi":"10.1007/s11003-023-00681-7","DOIUrl":"https://doi.org/10.1007/s11003-023-00681-7","url":null,"abstract":"","PeriodicalId":49875,"journal":{"name":"Materials Science-Poland","volume":"58 1","pages":"427 - 436"},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42428402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1007/s11003-023-00687-1
M. Semerak, T. Rymar, T. Hlova
{"title":"Mathematical Modeling of the Thermal Stress State in a Connection Unit of the Coil Shank End with High-Pressure Heater HP-2500-97 Collector","authors":"M. Semerak, T. Rymar, T. Hlova","doi":"10.1007/s11003-023-00687-1","DOIUrl":"https://doi.org/10.1007/s11003-023-00687-1","url":null,"abstract":"","PeriodicalId":49875,"journal":{"name":"Materials Science-Poland","volume":"58 1","pages":"474 - 479"},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49417061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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