Mahdy, Ahmed M Zhang, Tiequan Lin, Zhi-Qing Fathi, Nieven O Badr Eldin, Rasha M
Published in
Materials (Basel, Switzerland)
Nickel (Ni+2) accumulation in wastewater treatment sludge poses a potential environmental risk with biosolids-land application. An incubation experiment was conducted to evaluate the effect of nanoparticles of zero-valent iron (nZVI) on Ni+2 sorption in biosolids-treated agricultural soils. Two application rates of biosolids (0, 5%, w/w) and four t...
Lee, Che-Fu Shun, Tao-Tsung
Published in
Materials (Basel, Switzerland)
In this study, effects of the replacement of Co with Ni on the microstructure, mechanical properties, and age hardening of high-entropy alloys of AlCo1-xCrFeNi1+x (x = molar ratio; x = 0, 0.5, 1, denoted as X0, X0.5, and X1, respectively) were investigated. These three alloys exhibited a dendritic structure comprising an ordered BCC matrix, a BCC p...
Kobaka, Janusz
Published in
Materials (Basel, Switzerland)
With the recent and rapid development of concrete technologies and the ever-increasing use of concrete, adapting concrete to the specific needs and applications of civil engineering is necessary. Due to economic considerations and care for the natural environment, improving the methods currently used in concrete design is also necessary. In this st...
Xu, Hong Guo, Zhi-Peng Zhang, Ping-Yu Zhou, You Ma, Pin-Kui
Published in
Materials (Basel, Switzerland)
The microstructure and mechanical properties of a Mg-6Al-1Zn-0.9Sn alloy processed by equal channel angular pressing (ECAP) at temperatures of 250 °C and 300 °C were investigated. It was found that the refinement of the microstructure was very dependent on the processing temperature. The main reason for the difference in grain refinement was the pr...
Szymkiewicz, Krzysztof Morgiel, Jerzy Maj, Łukasz Pomorska, Małgorzata
Published in
Materials (Basel, Switzerland)
Plasma nitriding of titanium alloys is capable of effective surface hardening at temperatures significantly lower than gas nitriding, but at a cost of much stronger surface roughening. Especially interesting are treatments performed at the lower end of the temperature window used in such cases, as they are least damaging to highly polished parts. T...
Mahrle, Achim Borkmann, Madlen Pfohl, Peer
Published in
Materials (Basel, Switzerland)
Factorial Design-of-Experiment analyses were applied for conventional and beam oscillation fiber laser cutting of 10 mm thick AISI 304 stainless steel. Considered factors in case of the conventional process with a static beam involve both laser and cutting gas parameters, in particular the laser power, the focal plane position, the cutting gas pres...
Dlhý, Pavol Poduška, Jan Berer, Michael Gosch, Anja Slávik, Ondrej Náhlík, Luboš Hutař, Pavel
Published in
Materials (Basel, Switzerland)
The problem of crack propagation from internal defects in thermoplastic cylindrical bearing elements is addressed in this paper. The crack propagation in these elements takes place under mixed-mode conditions-i.e., all three possible loading modes (tensile opening mode I and shear opening modes II and III) of the crack are combined together. Moreov...
Lehmann, Karl Martin Weyhrauch, Michael Bjelopavlovic, Monika Scheller, Herbert Staedt, Henning Ottl, Peter Kaemmerer, Peer W Wentaschek, Stefan
Published in
Materials (Basel, Switzerland)
CAD/CAM systems enable the production of fixed partial dentures with small and reproducible internal and marginal gaps. The purpose of this study was to evaluate the reproducibility of the marginal and internal adaptations of four-unit fixed partial denture frameworks produced using four CAD/CAM systems. Prepared dies of a master model that simulat...
Shim, Kiche Jang, Young-Eun Kim, Yemi
Published in
Materials (Basel, Switzerland)
This clinical trial aimed to compare the effects of bioceramic sealer and resin-based sealer on the incidence and intensity of postoperative pain. Patients with anterior teeth or premolars requiring root canal treatment were assigned to group 1 (n = 51). Those with molars requiring treatment were assigned to group 2 (n = 57). In groups 1En and 2En,...
Alhotan, Abdulaziz Yates, Julian Zidan, Saleh Haider, Julfikar Silikas, Nikolaos
Published in
Materials (Basel, Switzerland)
The aim of this work was to evaluate the flexural strength and surface hardness of heat-cured Polymethyl methacrylate (PMMA) modified by the addition of ZrO2 nanoparticles, TiO2 nanoparticles, and E-glass fibre at different wt.% concentrations. Specimens were fabricated and separated into four groups (n = 10) to measure both flexural strength and s...
