Classification systems for all-ceramic materials are useful for communication and educational purposes and warrant continuous revisions and updates to incorporate new materials. This article proposes a classification system for ceramic and ceramic-like restorative materials in an attempt to systematize and include a new class of materials. This new classification system categorizes ceramic rest...

BACKGROUND/AIM Metal-ceramic bond strength and alloys' elastic modulus clearly determine the potential of alloy application, because the ceramic integrity during mastication depends on these two characteristics. The aim of this study was to evaluate metal-ceramic bond strenght and elastic modulus of cobalt-chromium alloys in making porcelain-fused-to-metal restorations, regarding the applicatio...

We prove that for all but a certain number of abelian groups of order n the Davenport constant is atmost n k +k−1 for positive integers k ≤ 7. For groups of rank three we improve on the existing bound involving the Alon-Dubiner constant.

We prove that for all but a certain number of abelian groups of order n the Davenport constant is atmost n k +k−1 for positive integers k ≤ 7. For groups of rank three we improve on the existing bound involving the Alon-Dubiner constant.

A lot of nanocomposites containing C60 have been developed to enable various application opportunities. However, it seems impossible incorporate into ceramics without destroying the molecules, because are typically sintered at high temperatures that could result in chemical reaction C60. Herein, we report successful integration with ZnO using cold sintering process. (1-x)ZnO-xC60 composites x r...

The paper describes the technology of nickel-alumina composite coatings obtained by low-pressure cold spray (LPCS). content alumina reinforcement was optimized mixing commercial K32, being a mechanical mixture Al2O3 + 50 wt% Ni, with Ni-cladded powders developed in present study. cladded were prepared hydrogen reduction method. Two including Ni-films covering particles developed: 70 Ni (powder ...