Materials Literature
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AISI 410 martensitic stainless steel specimens were low temperature plasma nitrided at 400C in a mixture of 75%N2:25%H2, during 20 h. Active screen technic was used to avoid any edge effect The nitrided case is composed of expanded martensite ('N) and -Fe3N iron nitride, whilst chromium nitride precipitation was avoid…
This property has been studied to characterize the strength a metallic material exhibits when it is machined so it can be regarded as its typical behaviour. As such, it may even be considered as an intrinsic material property. It is usually measured by an index called Coppini index, which is expressed by the ratio bet…
Polymeric materials, such as polyurethanes and rubbers, are widely used in the mining industry because of their moderate cost and excellent mechanical properties. Such polymers have been used mainly in transportation (conveyor belt systems and pipes coatings) and screening, for their appreciable abrasion wear resistan…
This thesis presents low velocity impact testing and high velocity impact testing on fibreglass reinforced polymer. The materials used in this experiment are Type Cglass/ Epoxy 600 g/m² and Type E-glass/Epoxy 800 g/m². The ultimate objective of this research is to conduct an experimental investigation using low veloci…
Research in terahertz (THz) technology is now receiving strong attention worldwide. Devices using this band are predicted to become important in a very wide range of applications. The number of research in this field has increased rapidly in applications such as information and telecommunications, ultrafast computing…
Program Keandalan Manusia. BATAN sebagai lembaga penelitian memiliki reaktor nuklir riset dan cukup banyak sumber radioaktif, sehingga memiliki kerawanan terhadap penyalahgunaan fasilitas dan sumber radioaktif. Sistem keamanan nuklir dan sumber radioaktif bertujuan untuk mencegah potensi dan memitigasi kejadian terseb…
En este trabajo se sintetizaron dos diferentes polilactonas y sus copolímero a partir de\nla -caprolactona, -CL, y el pentadecanolido, PDL utilizando como catalizador una\nlipasa tipo B de Cándida antárctica (CALB) inmovilizada sobre una resina acrílica\nmacroporosa, y que tiene por nombre comercial (Novosyme 435), N4…
Se depositaron películas delgadas de CdS sobre substratos de vidrio/ITO\n(portaobjetos/estaño dopado con indio) utilizando la técnica de depósito por baño\nquímico sin agitación. Las condiciones de depósito fueron las siguientes: A una\ntemperatura de baño constante de 70°C. las soluciones utilizadas: CdCl2 0.05M,\nKO…
Deposition of a large and uniform distribution of diamond grains with good adherent and high quality of diamond coating using chemical vapour deposition (CVD) technique is a challenge. Large diamond grains reduce the adhesion strength between the diamond coating and substrate material. The aim of this research is to d…
El Mn5Ge3 es un compuesto con estructura cristalina hexagonal y ferromagnético con una\ntemperatura de Curie de 294 K. La facilidad de crecerlo de manera epitaxial sobre Ge(111)\nlo convierten en un candidato ideal para efectuar de manera eficiente la inyección de espín\nen un semiconductor, lo cual es pieza clave par…
Plastics Engineering is the official publication of the Society of Plastics Engineers (SPE). We provide plastics professionals with a wealth of information about machinery, technological advances, materials innovations, sustainability, and more.
This paper focuses on the production of flame-resistant coatings based on perchlorovinyl resin for the protection of glass-fibre-reinforced plastic. It has been established that the phosphorus-, boron-, and chlorine-containing oligomer FBE is an effective flame retardant, the introduction of which into the composite e…
A study has been made of the possibility of increasing the epoxy anhydride impregnability of basalt fibre by introducing wetting agents from different manufacturers worldwide into standard lubricant No. 4s. By improving the lubricant, it proved possible to increase the impregnability of the basalt fibre considerably.
A systematic study based on the size reduction of chitosan particles has been conducted by de-acetylation by using various concentrations of NaOH solutions at different reaction temperature and time. The degree of de-acetylation (DD) of the isolated chitosan particles has been correlated with their molecular weight an…
Plastics Engineering is the official publication of the Society of Plastics Engineers (SPE). We provide plastics professionals with a wealth of information about machinery, technological advances, materials innovations, sustainability, and more.
The influence of the structure and filler content of non-woven materials on their sorption properties under dynamic conditions was studied. The possibility of further increasing the sorption activity of carbon-filled materials while retaining their strength was shown.
The decomposition kinetics of polymethylphenylsilsesquioxane/epoxy resin (PMPSQ/EP) systems under isothermal conditions was investigated by thermogravimetric analysis (TGA), and the isothermal kinetics equation was used to describe the thermal decomposition process. The results showed that the activation energy in the…
The effect of thermal deformation on the cellular structure and thermomechanical properties of chemically crosslinked PPE-3M polyethylene foam was investigated. The thermomechanical effects are discussed from the viewpoint of a model of the cellular structure and a two-phase model of partially crystalline polyethylene…
Plastics Engineering is the official publication of the Society of Plastics Engineers (SPE). We provide plastics professionals with a wealth of information about machinery, technological advances, materials innovations, sustainability, and more.
Possible ways to increase the storage stability of epoxy phenolic composites are examined.