Buscar recursos académicos

Three-dimensional electron diffraction (3D ED) has become increasingly popular over the last two decades, challenging the limits of established single-crystal X-ray diffraction experiments. In particular, continuous-rota...

Glass ceramic samples with general composition: (2-х)Na2О : хМІ2О : 3CoО : 2P2O5 (х = 0 or  0.05, МІ – Li, K) were synthesized by melt method with subsequent annealing of homogeneous glass at a temperature o...

In this work, we have performed a comprehensive investigation of the Ag+ concentration effect on the morphological, thermal, structural, and mid-infrared emission properties of novel oxyfluoride borosilicate glasses and ...

Here, (K0.44Na0.52Li0.04)(Nb0.9-xTa0.1Sbx)O3 [KNL(N0.9-xTSx)] lead-free ceramics withpotential technological applications are made through B-position substitution on the perovskitestructure by Sb ions. This strategy gene...

Objectives: To compare the effects of airborne-particle abrasion (APA) and tribochemical silica coating (TSC) surface treatment methods on the shear bond strength of zirconia ceramics systems, resin cements and tooth sur...

In this research, the effects of an Al2O3 nanoparticle additive on the structure and electrical properties of Pb0.88Sr0.12Zr0.54Ti0.44Sb0.02O3 (PSZST) ceramics were investi‐ gated. The PSZST ceramics with the addition ...

Abstract Background This in vitro study aims to evaluate the effects of two different surface finishing procedures-glazing and polishing-on the stability of colour, the translucency, and the roughness of surface with thr...

Porous ceramics are widely used in fields such as heat insulation, filtration, sound absorption, and catalysis due to their good chemical stability, as well as the high permeability and large specific surface area of por...

Ochre pigments, in all their varieties, have played a key role in Northwestern Argentinian pottery for more than 2000 years. Present in different styles, they are combined with other colours on surface paints. This artic...

The Hualfin Valley presents a long occupation period from the first agropastoralist societies (BC 200) to the Inka occupation (AD 1400). Ceramic production has played a fundamental role, being an important indicator of s...

Clay vessels are among the oldest objects created by humans. They have played a significant role in the history of humanity, both in everyday life and in culture. In the Middle Ages (approximately from the 9th to the 15t...

Lead zirconate titanate (PZT) has long been regarded as the gold standard material for piezoelectric sensorsowing to its outstanding piezoelectric performance (d33 = 500–600 pC/N) and well-established industrial scalab...

Objective: To assess how resin cement viscosity and thickness influence the static shear bond strength (s-SBS) of adhesively bonded lithium disilicate ceramic. Methods: Cylindrical lithium disilicate samples were prepare...

Objective To investigate the influence of water on the monotonic and fatigue strength of a lithium disilicate glass-ceramic. Methods Ninety bar-shaped specimens (1.0 × 1.0 × 12.0 mm) were prepared from Advanced Lithium...

The kinetics of ZnFe2O4 formation starting from mechanochemically activated Zn-Fe2O3 powders are studied. Mixtures of metallic Zn and hematite were activated under air atmosphere in a high energy mill and thermally treat...

In this study, the characteristics of phonon transport in single-crystal and nanograined zirconium diboride have been examined using the molecular dynamics method. In the case of single-crystal ZrB2 the anisotropy of the...

Abstract Background Various designs of dental implants made of zirconium dioxide (zirconia) as an alternative to titanium implants are available as one-piece implant (OPI) or as bone-level or tissue-level two-piece impla...

Abstract Various silicate compounds have been extensively used for scaffold fabrication via electrospinning. However, harnessing the bioactive properties of Calcium silicate (CS) and Zinc silicate (ZS) are less explored ...

The kinetics of dispersion of thin niobium-copper films deposited onto leucosapphire, alumina and zirconia ceramics and annealed in vacuum at temperatures up to 1100 °C with different exposition times at each temperatur...

This article examines the social implications of pottery circulation in the southern Andes during the Late pre-Hispanic periods (ca. A.D. 1000–1550). In particular, its goal is to understand the role of Yavi-Chicha pot...

The results are presented of the study of kinetics of fragmentation of titanium nanofilms 100 nm thick deposited onto the surface of samples made from single crystals of Al2O3(leucosapphire), ZrO2, SiC, and AlN ceramics ...

This study presents a novel, modular 3D printing system for the scalable production of microbially induced calcium carbonate (CaCO3) precipitation (MICP) produced bio-materials. Through modular design principles and oper...

We have studied the effect of the pelletization pressure on microstructural and electrical transport properties of superconducting ceramics with starting composition given by the formula Bi 1.65Pb 0.35Sr 2Ca 2.5Cu 3.5O 1...