Autor: Patejuk, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Influence of annealing time and temperature on the Fe₃Al intermetallic alloys microstructure modification
Autorzy:: Garbala, K.
Patejuk, A.
Powiązania:: https://bibliotekanauki.pl/articles/380040.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: intermetallic alloy
Fe3Al phase
microstructure modification
stop międzymetaliczny
faza Fe3Al
modyfikacja mikrostruktury
Opis:: There is an industry interesting in intermetallic alloys in recent years. There are widely possibilities to adopt this kind of materials for structural units. More expensive materials can be replaced by them. A property which limits their wider application is the low plasticity at environment and elevated temperatures. In paper the results of the thermal microstructure modification are shown. To this end, the influence of annealing time and temperature on the intermetallic phase Fe₃Al grain size was investigated. The impact of these factors on micro-hardness was examined as well. It was found that these operations cause the grain size reduction and the micro-hardness decrease.
Źródło:: Archives of Foundry Engineering; 2011, 11, 2 spec.; 39-42
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Tribological properties of the Fe-Al intermetallic alloys after annealing
Autorzy:: Garbala, K.
Patejuk, A.
Powiązania:: https://bibliotekanauki.pl/articles/382068.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: intermetallics alloy
Fe3Al
tribological test
wear surface
weight loss
stop intermetaliczny
test tribologiczny
zużycie powierzchni
ubytek masy
Opis:: In paper researching results of tribological proprieties Fe₃Al intermetallic alloys after annealing are presented. Studies were conducted in the following environments: a water; an air and oil. For investigation purposes the tribotester pin-on-disk type with the contrsample made of steel 40H quenched and tempered was used. Tests were carried out with the following process parameters: pressure p = 2MPa and linear velocity (circuital) V = 0.46m/s. It was noted, that intermetallic samples with the small distinction in chemical compositions, annealed at different temperatures showed a large difference in the quantity of material loss in the all tested environments. Appropriately selected parameters of the intermetallic alloys annealing, provide their greater resistance to abrasion in the air and oil environments than in the case of steel.
Źródło:: Archives of Foundry Engineering; 2011, 11, 2 spec.; 43-46
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: The technical and economical perspectives for the production and storage of hydrogen in Poland
Autorzy:: Kochański, M.
Korczak, K.
Dybiński, O.
Kwas, M.
Osipowicz, K.
Patejuk, A.
Sawicka, A.
Swoczyna, B.
Powiązania:: https://bibliotekanauki.pl/articles/105616.pdf
Data publikacji:: 2013
Wydawca:: Centrum Badań i Innowacji Pro-Akademia
Tematy:: hydrogen economy
hydrogen production
hydrogen storage
hydrogen technical potential
gospodarka wodorowa
produkcja wodoru
magazynowanie wodoru
potencjał techniczny wodoru
Opis:: This article presents the potential of hydrogen production and storage technology in Poland. The decomposition of fossil fuels (methane reforming using steam, partial methane oxidation, autothermal reforming and coal gasification), decomposition of biological material (biological and thermochemical methods) and nuclear technologies as possible key methods of hydrogen production in Poland are discussed. The total estimated technical potential of hydrogen production was set at 37 million Mg per year nationally. Coal gasification was the most prospective technology. The methods of hydrogen storage in porous materials and polymers were also analyzed. The possibilities of using hydrogen in transport were also presented.
Źródło:: Acta Innovations; 2013, 8; 50-62
2300-5599
Pojawia się w:: Acta Innovations
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Epiphytic lichens of Quercus robur in Wigry National Park (NE Poland)
Autorzy:: Fałtynowicz, W.
Kowalewska, A.
Fałtynowicz, H.
Piegdoń, A.
Patejuk, K.
Górski, P.
Halama, M.
Staniaszek-Kik, M.
Powiązania:: https://bibliotekanauki.pl/articles/2130810.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu
Tematy:: epiphytic lichens
Quercus robur
NE Poland
coniferous and deciduous forests
Opis:: The study covered diversity of lichens on bark of Quercus robur in rich deciduous forest Tilio-Carpinetum and Scotch pine forest Serratulo-Pinetum in Wigry National Park (NE Poland). Ninety eight taxa of lichenized fungi have been recorded, which accounts for over 30% of lichens biota of the Park. Greater diversity of species has been noticed on oaks grown in Tilio-Carpinetum phytocenosis. Among the found lichens, 14 are protected by law and 18 are threatened in Poland. Moreover, 10 new species for Wigry National Park lichen biota have been found.
Źródło:: Steciana; 2018, 22, 1; 19-27
1689-653X
Pojawia się w:: Steciana
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Additions to the lichen biota of the Sudety Mountains. I. Records from the Karkonosze Mountains
Autorzy:: Kossowska, M.
Faltynowicz, W.
Dimos-Zych, M.
Faltynowicz, H.
Patejuk, K.
Piegdon, A.
Buksakowska, M.
Jarema, P.
Powiązania:: https://bibliotekanauki.pl/articles/66926.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Botaniczne
Źródło:: Acta Mycologica; 2018, 53, 2
0001-625X
2353-074X
Pojawia się w:: Acta Mycologica
Dostawca treści:: Biblioteka Nauki

Artykuł

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