Results 41 to 50 of about 49,905 (304)
The impedance of anodic processes on passive NiSi-electrode in sulfuric fluoride containing electrolyte [PDF]
, 2016 The mechanism and kinetics of anodic oxidation of the Ni-Si electrode in solutions of 0.5 M H2SO4 + (0,005 – 0,05)M NaF in the passive state were investigated by methods of polarization and impedance measurements. The impedance spectra are interpreted on
Kamenschikov, O. Yu. +2 more
core +2 more sources
Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
Advanced Engineering Materials, EarlyView.The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source
Frontiers in MaterialsAimThe bond strength between resin composite and ceramics is critical for the success of fractured ceramics repaired with resin composites. The aim of the present study was to investigate and compare the shear bond strength (SBS) between resin composites
Abdulaziz Alqahtani +6 more
doaj +1 more source
Yankuang ceshi, 2017 When determining elements in geochemical samples, the sample is usually decomposed by mixed acid (hydrochloric acid-hydrofluoric acid-perchloric acid) by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and Inductively Coupled Plasma-Optical ...
LUO Yan, YANG Qiao
doaj +1 more source
Cailiao gongcheng, 2023 In order to improve the electrochemical performance of the activated carbon electrode material, the activated carbon was treated with acid washing and modified by hydrofluoric acid solution, and the pore structure characteristics of the activated carbon ...
TAN Xiaopeng +3 more
doaj +1 more source
Simple bonding technique for high-temperature ceramic coatings [PDF]
, 1970 Coatings, consisting of zirconia powder bonded with orthophosphoric acid and a small amount of hydrofluoric acid, are hard, strong, and refractory, resist thermal shock, and provide good thermal protection.
Accountius, O. E. +2 more
core +1 more source
Controlled nonuniformity in macroporous silicon pore growth [PDF]
, 2005 Photoelectrochemical etching of uniform prestructured silicon wafers in hydrofluoric acid containing solutions yields periodic structures that can be applied to two- and three-dimensional photonic crystals or microfluidics.
Gösele, Ulrich +2 more
core +1 more source
From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts
Advanced Functional Materials, EarlyView.Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado +6 more
wiley +1 more source
Erbil Dental Journal, 2023 Background: porcelain layered zirconia restoration fractures are serious and create an aesthetic and functional dilemma for the patients and the dentist.
Maryam Jawad Challo +1 more
doaj
Shear bond strength of ceramic brackets after different pre-treatments in porcelain surface
Brazilian Journal of Oral Sciences, 2015 Aim: To evaluate the bond strength of brackets bonded after different surface treatments on two dental ceramics. Methods: One hundred and twenty discs (5 mm thick and 7 mm diameter) of two ceramic types were made and randomly divided in 8 groups.
Naudy Brodbeck May +2 more
doaj +1 more source