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Sorpcja pary wodnej na próbkach wytypowanych węgli kamiennych w aspekcie określenia potencjału magazynowego złoża

Agnieszka Orzechowska-Zięba Paweł Baran Katarzyna Zarębska Janusz Cygankiewicz
Zeszyty Naukowe Instytutu Gospodarki Surowcami Mineralnymi Polskiej Akademii Nauk | 2017 | Nr 97 | 71-82
Słowa kluczowe węgiel kamienny sorpcja para wodna
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Abstrakt

Możliwość zastosowania nietradycyjnej metody utylizacji odpadowych gazów cieplarnianych, przez zatłaczanie CO2 (sekwestracja) w porowate złoża geologiczne traktowane jako niekonwencjonalne zbiorniki gazu, wymaga spełnienia podstawowych kryteriów takich jak np. wpływ na środowisko oraz długoletnie składowanie. Istotną kwestią jest fizyczne zachowanie się złoża podczas fazy nasycania jego struktury porowatej dwutlenkiem węgla. Należy tutaj przede wszystkim wymienić: zdolność transportu CO2 wzdłuż struktury porowatej oraz zdolność adsorpcyjną. W artykule przedstawiono wyniki badań sorpcji pary wodnej na próbkach węgla pochodzących z wytypowanych KWK o zróżnicowanej zawartości pierwiastka C. Uzyskane wyniki przedstawiono w postaci izoterm sorpcji i desorpcji w temperaturze 303 K, oraz opisano równaniem izotermy adsorpcji BET. Na podstawie danych sorpcji obliczono powierzchnię właściwą, zgodnie z teorią BET. Ilość zasorbownych cząsteczek pary wodnej dla badanych próbek węgla była zależna od stopnia metamorfizmu. Otrzymane izotermy można zaliczyć do typu II według klasyfikacji BET. Do badań sorpcyjnych zastosowano aparaturę typu objętościowego – adsorpcyjną mikrobiuretkę cieczową. Sorpcja pary wodnej w zastosowaniu dla węgli pozwala na ilościowe określenie pierwotnych centrów adsorpcji jako miary oddziaływań adsorbowanych cząsteczek z powierzchnią adsorbentu. Na podstawie równań adsorpcji BET z izoterm sorpcji pary wodnej określono ilości aktywnych centr adsorpcji, które potencjalnie mogą brać udział w adsorpcji CO2 w pokładach węgla podczas wtłaczania tego gazu. Pojemność sorpcyjna węgli pozostaje w korelacji ze stopniem metamorfizmu jak również ma ogromny wpływa na możliwość magazynową złoża.

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Autorzy i Afiliacje

Agnieszka Orzechowska-Zięba
Paweł Baran
Katarzyna Zarębska
Janusz Cygankiewicz

Evaluating the Durability of SiC-Coated Carbon Composites Under Thermal Shock Conditions

Ji Eun Lee Soo Bin Bae Nam Choon Cho Hyung Ik Lee Zicheng Meng Kee Sung Lee
Archives of Metallurgy and Materials | 2021 | vol. 66 | No 3 | 777-782 | DOI: 10.24425/amm.2021.136379
Słowa kluczowe durability carbon composites silicon carbide coating chemical vapor deposition chemical vapor reaction
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Abstrakt

Oxidation and indentation properties of silicon carbide-coated carbon composites were investigated to analyze its durability under atmospheric thermal shock conditions. The silicon carbide-coated samples were prepared either with chemical vapor deposition or chemical vapor reaction/chemical vapor deposition hybrid coating. The remnant weight of uncoated and coated samples was investigated after each thermal shock cycle. The surface and cross-section of coated samples were then analyzed to confirm morphological changes of the coating layers. The spherical indentation test for uncoated and coated samples were also performed. As a result, silicon carbide coating improved the oxidation resistance, elastic modulus, and hardness of carbon composites. Hybrid coating drastically enhanced the durability of samples at high temperature in atmospheric conditions.
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Bibliografia

[1] S.J. Park, M.K. Seo, Interface Science and Composites: Volume 18, Academic Press; 1st Edition (2011).
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[3] X. Qiang, H. Li, Y. Zhang, D. Yao, L. Guo, J. Wei, Corros. Sci. 59, 343-347 (2012). DOI: https://doi.org/10.1016/j.corsci.2012.01.035 [
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[5] S.B. Bae, J.E. Lee, J.G. Paik, N.C. Cho, H.I. Lee, Arch. Metall. Mater. 65 (4), 1371-1375 (2020).
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[9] Z. Li, X. Yin, T. Ma, W. Miao, Z. Zhang, Mater. Trans. 52 (12), 2165-2167 (2011). DOI: https://doi.org/10.2320/matertrans.MAW201103
[10] P.J. Jorgensen, M.E. Wardsworths, I.B. Cuter, J. Am. Cer. Soc. 42 (12), 613-616 (1959). DOI: https://doi.org/10.1111/j.1151-2916.1959.tb13582.x
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[12] K .S. Lee, D.K. Kim, S.K. Lee, B.R. Lawn, J. Korean Ceram. 4 (4), 356-362 (1998).
[13] http://www.tanxw.com/news/xgzx/1654.html, accessed: 26.08.2020.
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[15] http://cn.chinatungsten.com/Si/thgdxz.html, accessed: 26.08.2020.
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[18] A. Tiwari, S. Natarajan, Applied Nanoindentation in Advanced Materials, John Wiley & Sons (2017). DOI: https://doi.org/10.1002/9781119084501
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Autorzy i Afiliacje

Ji Eun Lee
1
ORCID: ORCID
Soo Bin Bae
1
ORCID: ORCID
Nam Choon Cho
1
ORCID: ORCID
Hyung Ik Lee
1
ORCID: ORCID
Zicheng Meng
2
ORCID: ORCID
Kee Sung Lee
2
ORCID: ORCID
  1. Agency for Defense Development, Yuseong P.O. Box 35, Daejeon, 34186, Korea
  2. Kookmin University, School of Mechanical Engineering, JEONGNEUNG-RO 77, SEONGBUK-GU, SEOUL, 02707, KOREA

SAW Sensor with Langmuir-Blodgett Layer for Detection of Benzene and its Derivatives

Andrzej Balcerzak Piotr Kiełczyński Marek Szalewski Krzysztof Wieja
Archives of Acoustics | 2021 | vol. 46 | No 1 | 25-30 | DOI: 10.24425/aoa.2021.136557
Słowa kluczowe SAW sensor Langmuir-Blodget layer vapors benzene benzene derivatives
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Abstrakt

Vapors of benzene and its derivatives are harmful and toxic for human beings and natural environment. Their detection has fundamental importance. For this purpose authors propose surface acoustic wave (SAW) sensor with skeletonized layer deposited by Langmuir-Blodgett (L-B) method. This layer was obtained by depositing a binary equimolar mixture of 5-[[1,3-dioxo-3-[4-(1-oxooctadecyl) phenyl]propyl]amino]–1,3–benzenedicarboxylic acid with cetylamine. The skeletonized sensor layer has been obtained by removing cetylamine. Response of this sensor depends mainly of the electrical dipole momentum of molecule. Among the tested compounds, benzene has a zero dipole moment and gives the smallest sensor response, and nitrobenzene has the largest dipole moment and the sensor reacts most strongly to its vapor.
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Autorzy i Afiliacje

Andrzej Balcerzak
1
Piotr Kiełczyński
1
Marek Szalewski
1
Krzysztof Wieja
1
  1. Institute of Fundamental Technological Research Polish Academy of Sciences Warsaw, Poland

ZnO Nanowires Grown on Al2O3-ZnAl2O4 Nanostructure Using Solid-Vapor Mechanism

W. Zajkowska-Pietrzak J. Turczyński B. Kurowska H. Teisseyre K. Fronc J. Dąbrowski S. Kret
Archives of Metallurgy and Materials | 2023 | vol. 68 | No 3 | 1177-1182 | DOI: 10.24425/amm.2023.145491
Słowa kluczowe Solid-vapor growth ZnO nanowires ZnAl2O4 spinel
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Abstrakt

We present Al2O3-ZnAl2O4-ZnO nanostructure, which could be a prominent candidate for optoelectronics, mechanical and sensing applications. While ZnO and ZnAl2O4 composites are mostly synthesized by sol-gel technique, we propose a solid-vapor growth mechanism. To produce Al2O3-ZnAl2O4-ZnO nanostructure, we conduct ZnO:C powder heating resulting in ZnO nanowires (NWs) growth on sapphire substrate and ZnAl2O4 spinel layer at the interface. The nanostructure was examined with Scanning Electron Microscopy (SEM) method. Focused Ion Beam (FIB) technique enabled us to prepare a lamella for Transmission Electron Microscopy (TEM) imaging. TEM examination revealed high crystallographic quality of both spinel and NW structure. Epitaxial relationships of Al2O3-ZnAl2O4 and ZnAl2O4-ZnO are given.
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Autorzy i Afiliacje

W. Zajkowska-Pietrzak
1
ORCID: ORCID
J. Turczyński
1
ORCID: ORCID
B. Kurowska
1
ORCID: ORCID
H. Teisseyre
1
ORCID: ORCID
K. Fronc
1
ORCID: ORCID
J. Dąbrowski
1
ORCID: ORCID
S. Kret
1
ORCID: ORCID
  1. Institute of Physics Polish Academy of Sciences, 32/46 Lotników Av., 02-668 Warszawa, Poland

Risk of interstitial condensation in outer walls made of hemp-lime composite in Polish climatic conditions

Michał Gołębiewski Barbara Pietruszka
Archives of Civil Engineering | 2021 | vol. 67 | No 4 | 107-121 | DOI: 10.24425/ace.2021.138489
Słowa kluczowe hemp-lime composite hempcrete sustainable construction thermal conductivity vapor permeability interstitial condensation
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Abstrakt

The present paper presents results of a study on hemp-lime composite – a novel building material which is gaining attention thanks to its pro-ecological values, as well as interesting hygrothermal characteristics. The thermal conductivity and vapour permeability tests were performed on composites which varied in terms of composition and density as a result of use of various binders, different proportions of ingredients in a mixture and different compaction level during manufacturing with the use of the tamping method. The results obtained, indicating low thermal conductivity and very high vapor permeability, were tabulated with results of compressive strength obtained in the previous study on the same types of composites. The conclusions emphasise supreme importance of apparent density on properties of material, rather than binder composition – which exerts a significant effect only on compressive strength. The results of the performed tests were applied for determination of external walls’ construction, which were subjected to analysis of risk of interstitial water vapor condensation according to Glaser method. For locations in all Polish climatic zones, no condensation or only a small amount thereof, in which case it does not accumulate in subsequent years, was found.
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Autorzy i Afiliacje

Michał Gołębiewski
1
Barbara Pietruszka
2
  1. Warsaw University of Technology, Faculty of Architecture, ul. Koszykowa 55, 00-659 Warsaw, Poland
  2. Building Research Institute, Department of Thermal Physics, Acoustics and Environment, ul. Ksawerów 21, 00-656 Warsaw, Poland

Improved Thermal Stability of Al-Si Alloy Coated Steel Sheet with Cr Thin Film Deposition

Jae-Hyeon Kim Jung-Ha Lee Seung-Beop Lee Sung-Jin Kim Min-Suk Oh
Archives of Metallurgy and Materials | 2024 | vol. 69 | No 1 | 117-121 | DOI: 10.24425/amm.2024.147798
Słowa kluczowe Aluminized steel physical vapor deposition Cr thin film corrosion resistance thermal stability
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Abstrakt

We investigated the effect of Cr thin film deposition on the thermal stability and corrosion resistance of hot-dip aluminized steel. A high-quality Cr thin film was deposited on the surface of the Al-9 wt. % Si-coated steel sheets by physical vapor deposition. When the Al-Si coated steel sheets were exposed to a high temperature of 500℃, Fe from the steel substrate diffused into the Al-Si coating layer resulting in discoloration. However, the highly heat-resistant Cr thin film deposited on the Al-Si coating prevented diffusion and surface exposure of Fe, improving the heat and corrosion resistances of the Al-Si alloy coated steel sheet.
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Autorzy i Afiliacje

Jae-Hyeon Kim
1
Jung-Ha Lee
2
Seung-Beop Lee
2
Sung-Jin Kim
3
ORCID: ORCID
Min-Suk Oh
1
ORCID: ORCID
  1. Jeonbuk National University, Division of Advanced Materials Engineering And Research Center For Advanced Materials Development, Jeonju, Republic of Korea
  2. Jeonbuk National University, School of International Engineering And Science, Jeonju, Republic of Korea
  3. Sunchon National University, Department of Advanced Materials Engineering, Sunchon, Republic of Korea

In-Situ Wettability Analysis of Al Coating Influence on Hot-Dip Galvanizing Properties of Advanced High-Strength Steels

Srinivasulu Grandhi Kwang-Hyeok Jin Min-Su Kim Dong-Joo Yoon Seung-Hyo Lee Min-Suk Oh
Archives of Metallurgy and Materials | 2024 | vol. 69 | No 1 | 73-76 | DOI: 10.24425/amm.2024.147788
Słowa kluczowe Advanced high-strength steel (AHSS) selective oxidation physical vapor deposition (PVD) contact angle wetting
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Abstrakt

We investigated the influence of steel surface properties on the wettability of zinc (Zn). Our main objective is to address the selective oxidation of solute alloying elements and enhance the wetting behavior of Zn on advanced high strength steel (AHSS) by employing an aluminum (Al) interlayer through the physical vapor deposition technique. The deposition of an Al interlayer resulted in a decrease in contact angle and an increase in spread width as the molten Zn interacted with the Al interlay on the steel substrate. Importantly, the incorporation of an Al interlayer demonstrated a significant improvement in wettability by substantially increasing the work of adhesion compared to the uncoated AHSS substrate.
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Autorzy i Afiliacje

Srinivasulu Grandhi
1
Kwang-Hyeok Jin
1
Min-Su Kim
ORCID: ORCID
Dong-Joo Yoon
2
Seung-Hyo Lee
3
Min-Suk Oh
4
ORCID: ORCID
  1. Jeonbuk National University, Division of Advanced Materials Engineering and Research Center for Advanced Materials Developm ent, Jeonju,Republic of Korea
  2. Sunchon National University, Center for Practical Use of Rare Materials, Sunchon, Republic of Korea
  3. Korea Maritime & Ocean University, Department of Ocean Advanced of Materials Convergence Engineering, Pusan, Republic of Korea
  4. Jeonbuk National University, Division of Advanced Materials Engineering and Research Center for Advanced Materials Developm ent, Jeonju, Republic of Korea

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