Poly(vinylidene fluoride) (PVDF) based composites loaded with 3 wt% of carbon black (CB), graphite (GF), and the hybrid CB/GF (1.5/1.5 wt%) were prepared by melt mixing tested as microwave absorbing material at X-band frequencies (8–12 GHz). The materials processed pressed 220°C into plates 20 × 0.1 cm3. Dielectric magnetic properties evaluated using wave-guide accessory to simulate reflectivit...

Microwaves have been widely used in the treatment of materials, such as heating, drying, and sterilization. However, the heating in the commonly used microwave applicators is usually uneven. In this paper, a novel multi-material turntable structure is creatively proposed to improve the temperature uniformity in microwave ovens. Three customized turntables consisting of polyethylene (PE) and alu...

This letter introduces a localized microwave technique for direct excitation of solid materials for the sake of their identification by atomic emission spectroscopy. The microwave energy is concentrated on the material surface by a microwave-drill type applicator. The evolved 1-mm hotspot is slightly evaporated and excited as plasma. An optical spectrometer measures the atomic emission spectrum...

The instabilities of perovskite solar cells hinder their commercialisation. To resolve this problem, a one-dimensional (1D) perovskitoid, PyPbI3, was fabricated, and its structure photovoltaic performance were investigated in work. XPS FTIR results suggest hydrogen bonds existed the 1D hexagonal PyPbI3. Stability measurements indicate that perovskitoid is much more stable than commonly employed...

Noise pollution is often overlooked and invisible, but it significantly impacts the quality of human life. One most straightforward solutions to mitigate noise by using sound-absorbing materials. Recently, research trends develop sound absorbing green materials, typically derived from agricultural by-products, have witnessed an uptick. This paper summarizes properties various materials found in...

PURPOSE The impact strength and the flexural properties of denture base materials are of importance in predicting their clinical performance upon sudden loading. This study compares the impact and transverse strengths and the flexural modulus of three denture base polymers. MATERIALS AND METHODS The investigation included a relatively new microwave-polymerized polyurethane-based denture mater...