نتایج جستجو برای: alkali resistant glass fiber

تعداد نتایج: 402187  

A. Boruzi Niat, M. Akbari, MJ. Moghaddas, SH. Gilshan,

  Objective: Fiber-reinforced composite (FRC) posts have recently become more popular for restoring endodontically treated teeth because of providing esthetics, better stress distribution and lower risk of root fracture. Resistance against tensile forces dislodging the post from the root canal is a prerequisite for these posts. This study aimed to evaluate the tensile retention (strength) of in...

Journal: :Applied microbiology 1975
T Kaneshiro B F Kelson J H Sloneker

Trichoderma viride QM9123 fermented fiber isolated from feedlot waste at concentrations up to 16.7% solids. The fermented fiber solids decreased by 32%, and carbohydrate decreased by 60%. Cellulotyic enzyme production was better with fiber substrates that had been alkali pretreated and had a lower hemicellulose-to-cellulose ratio.

2004
Zhiyong Wei George W. Woodruff

This paper presents a computational model for predicting the location at which the glass fiber solidifies during a highspeed drawing process. Although modeling of the optic fiber drawing process has been of interest for the past two decades, traditional fiber drawing process uses small diameter preforms and low draw speeds, where the glass usually solidifies and turns into fiber inside the furn...

2017
Enas Mangoush Eija Säilynoja Roosa Prinssi Lippo Lassila Pekka K. Vallittu Sufyan Garoushi

Background Fiber reinforced composite (FRC) is a promising class of material that gives clinicians alternative treatment options. There are many FRC products available in the market based on either glass or polyethylene fiber type. The aim of this study was to present a comparison between glass and polyethylene fiber reinforced composites based on available literature review. Material and Met...

Journal: :journal of ultrafine grained and nanostructured materials 2013
shokoofeh dolati abdolhosein fereidoon ali sabet

this study investigated the influence of nanoclay on the impact damage resistance of glass fiber-epoxy composites under high velocity ice impact loading. addition of 0.5 wt. % nanoclay into epoxy was shown to improve damage resistance compared to composite plates having no nanoclay platelet. the glass fiber-epoxy composites containing nanoclay brought about substantial improvement in ice impact...

2017
Zaijin Fang Xusheng Xiao Xin Wang Zhijun Ma Elfed Lewis Gerald Farrell Pengfei Wang Jing Ren Haitao Guo Jianrong Qiu

A glass-ceramic optical fiber containing Ba2TiSi2O8 nanocrystals fabricated using a novel combination of the melt-in-tube method and successive heat treatment is reported for the first time. For the melt-in-tube method, fibers act as a precursor at the drawing temperature for which the cladding glass is softened while the core glass is melted. It is demonstrated experimentally that following he...

K. Prasad, N. Patil,

The mechanical characterization of short E- glass fiber reinforced, graphite and sintered bronze filled epoxy composite was carried out in this study. The aim of the present study was to develop tribological engineering material. In this study the flexural strength, theoretical and experimental density, Hardness and Impact strength of composites was investigated experimentally. The results show...

2000
S. H. LEE ANTHONY M. WAAS

The compressive response of polymer matrix fiber reinforced unidirectional composites (PMC’s) is investigated via a combination of experiment and analysis. The study accounts for the nonlinear constitutive response of the polymer matrix material and examines the effect of fiber geometric imperfections, fiber mechanical properties and fiber volume fraction on the measured compressive strength an...

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