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Wyszukujesz frazę "Redutko, Joanna" wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Changes in Thermal Properties of Printouts Made of PETG and PLA Doped with Copper After Electrocorrosive Ageing Process
Autorzy:
Redutko, Joanna
Kalwik, Aleksandra
Szarek, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/2048870.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
3D printing
thermal properties
DMA
DSC
Simulated Body Fluid conditions
Opis:
The article presents the results of research on selected thermal, mechanical properties, as well as the microscopic structure of filaments and details made on a 3D printer in FDM technology. The materials used in the study were PETG (polyethylene terephthalate doped with glycol) and PLA (polylactide) doped with copper. As part of the study, Differential Scanning Calorimetry (DSC) was performed in order to determine the temperatures of phase transformations and changes in melting enthalpy values of filaments before the printing process and also elements made of them. The second part of the research was electrocorrosive ageing process of printouts, carried out in the Simulated Body Fluid solution in a device generating 0.3 A direct current, voltage with value 4.3 V for the entire duration of the test, which was 720 h. After this process DSC test was conducted again. The next stage of the research was Dynamic Mechanical Analysis (DMA) of printouts before and after electrocorrosive ageing process. This test was carried out to characterize the dynamic-mechanical properties as a function of frequency, temperature and time. Additionally, microscopic analyses of the surfaces of the tested printouts were performed in order to assess the changes after electrolysis.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 1; 333-339
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badanie jakości wydruku elementów wykonanych techniką DLP przy wykorzystaniu tomografii wiązki stożkowej oraz tomografii konwencjonalnej
Print quality test of elements made by DLP printing technique using cone beam ct and conventional CT
Autorzy:
Redutko, Joanna
Szarek, Arkadiusz
Wrona, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2201480.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Katedra Biomechatroniki
Tematy:
druk 3D
DLP
tomografia wolumetryczna
CBCT
CT
3D printing
volumetric tomography
Opis:
Artykuł zawiera ocenę jakości wydruku elementów wykonanych w technice druku DLP, poprzez analizę projekcji otrzymanych z tomografu wolumetrycznego i konwencjonalnego. Podczas analizy określono czy możliwym jest wykonanie fantomu do CBCT z wydruku światłoutwardzalnego przy pomocy drukarki DLP. Badania tomograficzne miały na celu określenie obecności wtrąceń materiałowych i pęcherzy powietrza, mogących dawać efekt odbicia promieni rentgenowskich. Przeanalizowano ilość pochłanianej wiązki promieniowania poprzez pomiary wartości jednostek Hounsfielda dla wielu obszarów próbek.
The article has been devoted to an evaluation of the print quality of elements made in the DLP printing technique, which was obtained as a result of the analysis of the projection from the volumetric and conventional CT. During this analysis the presence of air bubbles, material inclusions and other artifacts, which may give the effect of X-ray reflection, was determined. The amount of absorbed radiation beam was also analysed by measuring the Hounsfield unit values for many sample areas.
Źródło:
Aktualne Problemy Biomechaniki; 2019, 17; 101--109
1898-763X
Pojawia się w:
Aktualne Problemy Biomechaniki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Curing Time on Properties of Dental Photosensitive Resin Applied in DLP Technique of 3D Printing
Autorzy:
Redutko, Joanna
Kalwik, Aleksandra
Szarek, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/2049684.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Digital Light Processing
dental models
light-cured resin
DMA
STA
Opis:
The article has presented the method of 3D Digital Light Processing printing as one of the technologies used for rapid prototyping of dental models and making elements of dentures. in this work the research was presented, which the aim was to determine the effect of additional exposure time on the properties of the obtained printouts. Dynamic Mechanical Analysis test showed significant differences in stiffness between uncured specimens as well as specimens cured for 10, 20 and 30 minutes. in turn the obtained TG and DTG curves allowed to determine the most optimal curing time for DLP printouts. These studies provide the basis for determining the most appropriate method for handling printouts after the process of printing from liquid resin, so that they are the best possible quality for dentists and prosthodontists.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 2; 419-424
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Changes in the Properties of Polymeric Components Joined by Resistance Welding
Autorzy:
Kalwik, Aleksandra
Mordal, Katarzyna
Redutko, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/2049718.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
polypropylene pipe
socket fusion welding
thermovision
bending strength
microscopic analysis
Opis:
The article has been devoted to issues connected with socket fusion welding, which is next to welding one of the methods of thermoplastic polymers joining. In this paper, the research was presented, which the aim was analysis of quality of joints obtained as a result of resistance welding of polypropylene pipes with diameter ø20 in the temperature range of 200÷230°C. To that end a Testo thermal imaging camera was used, flexural strength of the combined components was tested as well as the received weld was observed under a stereoscopic microscope. Conducted studies showed that the best results of joint are obtained during welding at 220°C and 230°C, while lower temperatures did not fully perform their function during the process of joining the pipe elements.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 2; 511-518
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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