A chemically sintered and binder-free paste of TiO2 nanoparticles (NPs) was prepared using a binary-liquid mixture 1-octanol CCl4. The 1:1 (v/v) complex CCl4 easily interacted with the NPs induced formation highly viscous paste. as-prepared (<bold>P</bold>BL)-based film exhibited complete removal residuals subsequent low-temperature sintering (~150°C) UV-O3 treatment. This facilitat...

A powder of Cu0.2Ni0.5Zn1.0 Mn1.3O4 composition for custom thermistor was prepared by using the respective mixture metal oxides and solid state reaction at 1000 ?C/4h in air. The obtained milled planetary ball mill agate a prolonged time to achieve submicron powder. further characterized XRD SEM techniques. After that, pressed into small disc-shaped samples sintered 1150 ?C/2h. were also SEM. m...

Characterizing standard building materials such as concrete is challenging primarily because of the broad range constituent component sizes within material itself. Concrete, most ubiquitous material, contains critical components that span at least three orders magnitude physical size. This work introduces a nondestructive sequential impact test to extract transient nonlinear vibration behaviors...

Polyol-ester-based carbon black pastes are used to either coat or penetrate flexible graphite, thereby increasing the thermal contact conductance of flexible graphite between copper surfaces. Paste penetration by up to an effective paste thickness (the volume of the penetrated paste divided by the geometric area of the flexible graphite) of 5 lm increases the conductance by up to 350%, 98% and ...

As the thickness of silicon solar wafer and solar cells becomes thinner, the cells are subjected to high stress due to the thermal coefficient mismatch induced by metallization process. Handling and bowing problems associated with thinner wafers become increasingly important, as these can lead to cells cracking and thus to high yield losses. The goal of this work to provide experimental underst...

Objectives: To compare the long-term in vitro effectiveness of a newer desensitizing agent containing bioactive glass and two other commercial products employed for dentin hypersensitivity. Methods: Fifty occlusal dentin disks from extracted sound human third molars were treated with 0.5M ethylenediaminetetraacetic acid for 2 min then randomly divided into five groups (n=10). Specimens were bru...

he purpose of this research was to evaluate the diffusion of calcium (Ca+2) and hydroxyl (OH-) ions from materials with a calcium hydroxide base Ca(OH)2 through the intact roots of deciduous teeth. This diffusion of ions is important for periapical healing. Forty-six deciduous teeth were selected and instrumented to their working length with #40 files. The teeth were washed during cleaning and ...