منابع مشابه
Flame Retardant Luffa Fiber Reinforced Composites with Epoxy Resin Matrices
In current years composites have concerned considerable importance as a potential operational material. Low cost, light weights, high specific modulus, renewability, and biodegradability are the most basic & common attractive features of composites that make them useful for industrial applications. Luffacylindrical locally called as “sponge-gourd” is one such natural resource whose potential as...
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Abstract—In this study, the feasibility of incorporating ceramic waste from bricks (perforated brick and double hollow brick) and extruded polystyrene (XPS) waste, is analysed. Results show that it is possible to incorporate up to 25% of ceramic waste and 4% of XPS waste over the weight of gypsum in a gypsum matrix. Furthermore, with the addition of ceramic waste an 8% of surface hardness incre...
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The relationships between the transmission coefficient and the cure depth were evaluated on eight commercially available light-activated resin composites. The determination of transmission coefficient was carried out by the use of a radiometer for various shades of the resin composites. The transmission coefficient, ranging from 0.042 to 0.263, wasdependent upon the shade of the resin. There wa...
متن کاملMoisture absorption and mechanical degradation studies of PMI foam cored fiber/epoxy resin sandwich composites
The present paper explores the result of hygrothermic aging of polymethacrylimide (PMI) foam core sandwich composites immersed in different temperature deionized (DI) and sea waters. The prepared specimens were tested for moisture up-take behavior and the resulting property degradation in terms of flexural and flat wise compressive strength. The results indicate that the saturated hygroscopic t...
متن کاملBond Strength of Resin Composites used as Core Materials around Different Types of Fiber Posts
The purpose of this study was to evaluate the shear bond strength of two resin composites around different types of fiber posts. Twenty post specimens were prepared for three types of fiber posts. Posts were embedded in acrylic resin blocks with half of the post diameter exposed. The exposed portions of the posts were successively ground with silicon carbide paper until flattened flush with the...
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ژورنال
عنوان ژورنال: Journal of the Japan Society of Colour Material
سال: 1975
ISSN: 0010-180X
DOI: 10.4011/shikizai1937.48.455