This paper investigates the durability of Ceramic Matrix Composite (CMC) and Nickel Superalloy materials in gas turbine combustor liners across different flight conditions. Thermo-mechanical and physical properties of CMCs are assessed and compared with selected superalloys (i.e., Inconel 625, Hastelloy X, SiC/SiC, Al2O3/B4C, and Al2O3/SiO2) using ...
Georgios Karadimas +3 more
openalex +2 more sources
The Electrodegradation Process in PZT Ceramics under Exposure to Cosmic Environmental Conditions
Molecules, 2023 Long-time electric field action on perovskite piezoelectric ceramic leads to chemical degradation. A new way to accelerate the degradation is the exposure of the ceramic to DC electric fields under a vacuum.
Iwona Lazar +7 more
doaj +1 more source
Investigation of microstructure of ZnO varistors taken from surge arrester counters [PDF]
Archives of Metallurgy and Materials, 2019 The paper presents investigations of microstructure of varistors of damaged surge arrester counters. A similar ZnO varistor, not subjected before to operation, was a point of reference in this research.
P. Papliński +3 more
doaj +1 more source
Determination of degradation level during cavitation erosion of zircon based ceramic [PDF]
Science of Sintering, 2017 Mechanical shock of zircon based ceramic induced by cavitation erosion testing was investigated in this study. Several parameters were followed in order to determine level of material degradation during the cavitation erosion testing.
Pavlović Marko +6 more
doaj +1 more source
Fracture Resistance of Zirconia Oral Implants In Vitro: A Systematic Review and Meta-Analysis [PDF]
, 2020 Various protocols are available to preclinically assess the fracture resistance of zirconia oral implants. The objective of the present review was to determine the impact of different treatments (dynamic loading, hydrothermal aging) and implant features (
Bethke, Annalena +6 more
core +1 more source
Overview of magnesium-ceramic composites: mechanical, corrosion and biological properties
Journal of Materials Research and Technology, 2021 Magnesium (Mg) and its alloys are potential metals for biodegradable implants because of several benefits, including a reduction of stress shielding effect in the implant for orthopedic application and the elimination of the step of a second surgery to ...
F. Khorashadizade +7 more
doaj +1 more source
Microstructure and Degree of Degradation of ZnO Varistors in Surge Arresters Due to Operation [PDF]
Archives of Metallurgy and Materials, 2018 The paper presents the test results for the microstructure of ZnO varistors comprising high voltage gapless surge arresters. The tests were performed on varistors produced in different periods and by various manufacturers.
P. Papliński +3 more
doaj +1 more source
A comparative study assessing the wear behaviour of different ceramic die materials during superplastic forming [PDF]
, 2017 Superplastic forming (SPF) is an advanced manufacturing process where metallic sheets are heated to their superplastic region to be blow formed within a die set.
Bernhart +8 more
core +2 more sources
Biological and mechanical degradation affecting the surface properties of aesthetic restorative
Brazilian Journal of Oral Sciences, 2017 Aim: To evaluate the roughness (Ra), Knoop hardness (KHN) and change of color (∆E) of esthetic restorative materials (Filtek Z350-composite nanoparticle; Empress Direct-composite nanohybrid and IPS e.Max-ceramic) subjected to contact with the ...
Bianca Medeiros Maran +4 more
doaj +1 more source
Characterization of ageing resistant transparent nanocrystalline yttria-stabilized zirconia implants. [PDF]
, 2020 The "Window to the Brain" is a transparent cranial implant under development, based on nanocrystalline yttria-stabilized zirconia (nc-YSZ) transparent ceramic material.
Aguilar, Guillermo +6 more
core +1 more source