Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Powiadomienia systemowe

Sesja wygasła!

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: PEN

Sortuj według:

Ogranicz wyniki do:

Mechanical flexibility and electrical reliability of ZnO-Al thin films on polymer substrates under different external deformation

Mohammed Dilveen W.

Advances in Materials Science

2024

Vol. 24, nr 1(79)

32--45

Aluminum-doped zinc oxide (AZO) films have emerged as promising transparent electrodes for various optoelectronic applications due to their superior transparency, electrical conductivity, and cost-effectiveness compared to indium tin oxide (ITO). Despite their widespread use, investigations into the electromechanical properties of AZO films, especially under various mechanical deformations, remain limited. This study employs RF magnetron sputtering to deposit AZO films on polyethylene naphthalate (PEN) substrates and explores their mechanical behavior through uniaxial tensile fragmentation and bending tests, coupled with in-situ optical microscopy. Changes in electrical resistance of AZO films were monitored in situ during deformation. Fatigue behavior was examined to further understand mechanical failure, and SEM was used for surface characterization. A critical strain of about 3.1 percent was detected during uniaxial tensile testing, marking the onset of cracks in AZO-coated PEN. In contrast to thicker films, thinner films demonstrated improved stretchability beyond the initiation of crack onset strain. Tension and compression bending tests revealed that the material has excellent bendability, as shown by its critical radii of 5.4 mm and 3.9 mm, respectively. The bending reliability of AZO films under compression was found to be superior than that under tension. Bending fatigue experiments demonstrated that AZO films could withstand cyclic stress without experiencing noticeable cracks after 100 cycles and with very minor resistance change. This study contributes to the creation of more reliable and optimized flexible optoelectronic devices by giving substantial quantitative data on the performance of AZO films when exposed to mechanical stress.

Wpływ krotności przetwarzania mieszanin PET/PEN na ich właściwości mechaniczne i cieplne

Szostak M.

Inżynieria i Aparatura Chemiczna

2010

Nr 5

115-116

W pracy przedstawiono badania wpływu krotności przetwórstwa na właściwości mechaniczne i cieplne poli(naftalenu etylenu) PEN i jego mieszanin z PET. Badano naprężenia i wydłużenia przy zerwaniu, moduł Younga, twardość Brinella oraz temperaturę mięknienia Vicata. Badania pokazały, że wraz z krotnością przetwórstwa pogarszają się właściwości badanych materiałów, stają się one bardziej twarde i kruche, ale nadal możliwe jest ich wykorzystanie w praktyce przemysłowej.

An influence of multiprocessing of poly(ethylene-2,6-naphthalene die boxylate) PEN and it blends with poly(ethylene terephthalate) PET their mechanical and thermal properties is presented in the paper. The t sile strength, elongation, Young modulus, Brinell hardness and Vicat h resistance temperature were measured. The research showed that with increase of processing number the testing properties worsened, i.e. blei became more hard and brittle but their use in industrial practice is still p sible.