O uso de adesivos estruturais vem aumentando nos últimos anos como alternativa para métodos união intrusivos. Para que uma junta adesivada seja executada com sucesso é necessário a correta preparação do da superfície substrato, pode ser feita por variados. objetivo deste trabalho foi fazer um apanhado geral os principais colagem adesiva existentes e faixa parâmetros interesse, rugosidade molhab...

Double-layer step formation on Si(100) substrates is a crucial prerequisite for antiphase-domain free III–V compound semiconductor heteroepitaxy. Due to its unequaled relevance in microelectronics, the (100) oriented surface of silicon is by far the most studied semiconductor surface. However, Si(100) preparation in hydrogen process gas ambient, which is commonly employed for Si and III–V devic...

The effect of different surface preparation methods such as mechanical, chemical and electrochemical surface preparation on the formation, stability and deterioration of surface films formed on austenitic 304 stainless steel was investigated in Tyrode’s physiological solution by cyclic polarization curves, AC impedance measurements surface techniques. A hysteresis loop in a cyclic polarization ...

AIM This in vitro investigation aimed to study by means of scanning electron microscope the morphological changes in hard dental tissues after using several different methods for caries removal and cavity preparation. MATERIALS AND METHODS Twenty freshly extracted human teeth with carious lesions were used in the study. They were assigned to four groups depending on the method used for prepar...

Preparation of Gallium Arsenide (GaAs) surfaces, prior to a thin-film deposition, serves the prevailing functions of lowering defectivity, contamination removal and promoting adhesion. When native oxides, metallics or particulates are a concern, the common GaAs clean includes a dilute acid (HCl, HF) or base (NH4OH). When adhesion is the primary concern, the GaAs surface may need to be roughened...