Ultralow expansion (ULE) glasses are of special interest for temperature stabilized systems example in precision metrology. Nowadays, ULE materials mainly used macroscopic and less micromechanical systems. Reasons this a lack technologies parallel fabricating high-quality released microstructures with high accuracy. As result, there is demand transferring these into miniaturized application exa...

Prospects for development of glass-ceramic materials on the lithium aluminosilicates base in order to increase reliability armor protection elements have been analyzed. Compositions aluminosilicate glasses with low content oxide developed, spodumene were obtained their conditions low-temperature thermal treatment. Formation structure based model after treatment has investigated and influence ph...

We investigate the fast β- and Johari–Goldstein (JG) β-relaxation processes, along with elastic scattering response of glass-forming (GF) liquids boson peak, in a simulated Al–Sm GF material exhibiting fragile–strong (FS) transition. These dynamical processes are universal “ordinary” fluids collectively describe their “fast dynamics,” we find these relaxation also arise liquid FS String-like pa...

OBJECTIVE To investigate the effect of ultrasound (US) application, US staring time and US duration on the setting of glass ionomer cement (GIC) by using Attenuated Total Reflectance Fourier Transform Infrared (ATR/FTIR) spectrometer. METHODS Two conventional GICs, Fuji IX Fast and Ketac Molar were studied. US application was started at 30 s or 40 s after mixing and was applied for times betw...

The objective of the study was to compare the acid neutralizing ability and shear bond strength (SBS) of three different types of orthodontic adhesives containing bioactive glasses (BAGs). 45S5, 45S5F and S53P4 BAGs were prepared using the melting technique and ground to fine particles. Orthodontic adhesives containing three types of BAGs were prepared as follows: 52.5% 45S5 BAG + 17.5% glass (...