Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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Subject: search.filters.subject.Tensile Strength

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  • Book Part
    Citation - Scopus: 1
    Strain Rate and Temperature Dependent Tensile Failure of a Short Glass Fiber Reinforced Polyamide Thermoplastic Composite
    (Trans Tech Publications Ltd, 2024) Mustafa, G.; Yiğit, G.; Servet, Y.; Özkan, D.; Namazov, S.
    The tensile behavior of an injection mold glass fiber reinforced polyamide matrix composite was determined between 10-6-10-1 s-1 strain rates at 25, 65 and 90oC for the loading axis 0o, 30o and 90o to the fiber plane. Microscopic studies were conducted to identify typical fracture mechanism involved at different temperatures. The composite exhibited the highest flow stress and elastic moduli sensitivities on the strain rate in the 0o specimens, followed by the 30o and 90o specimens. The highest rate sensitivity was detected in the specimens tested at 25oC and the rate sensitivity declined as the test temperature increased from 25oC to 65 and 90oC. The observed rate sensitivity of the composite was ascribed to the rate sensitivity of the matrix while the elevated temperatures enhanced the fiber-matrix bonding. © 2024 Trans Tech Publications Ltd, Switzerland.
  • Article
    Citation - WoS: 1
    Citation - Scopus: 1
    Pressureless Joining of Soda Lime Silicate Glass Using Polysilazane-Derived Silica at Near-Room Temperature
    (Elsevier Sci Ltd, 2025) Karacasulu, Levent; Biesuz, Mattia; Pastorelli, Virginia; Vakifahmetoglu, Cekdar; Sglavo, Vincenzo M.; Ferraris, Monica; Soraru, Gian D.
    Perhydropolysilazane (PHPS) pre-ceramic polymer was used to join soda lime silicate glass at temperatures below 200 degrees C under pressureless conditions. The results show that: (i) the junction material is largely converted to silica at 100 degrees C and fully converted to glass at 150 degrees C; (ii) the samples treated at room temperature and 100 degrees C show a perfectly dense and clean bond, whereas porosity develops starting from 150 degrees C as a result of the hydrolysis reactions and solvent evaporation; (iii) a maximum tensile bond strength of about 5-6 MPa is obtained after treatments at 100 degrees C. Remarkably, after treatment at 500 degrees C, the junction remains intact. These preliminary findings provide the first successful attempt regarding the use of PHPS as a joining material to produce inorganic and transparent bonds for glass at relatively low temperatures.