نتایج جستجو برای: composites

تعداد نتایج: 45835  

2014
Wei Wang Yuhe Zhu Susan Liao Jiajia Li

This review paper reported carbon nanotubes reinforced composites for biomedical applications. Several studies have found enhancement in the mechanical properties of CNTs-based reinforced composites by the addition of CNTs. CNTs reinforced composites have been intensively investigated for many aspects of life, especially being made for biomedical applications. The review introduced fabrication ...

1999
Minoru Taya

This paper discusses a summary of analytical modeling as applied to selected smart composites which include piezoelectric composites, shape memory alloy (SMA) fiber composites, and piezoresistive composites. First we discuss the definition of ‘smart materials’ which exhibit coupling among mechanical, thermal and electromagnetic behavior, then the Eshelby’s formulations based on a simple algebra...

Journal: :int. j. lignocellulosic products 2014
a. khozeini t. tabarsa m. mashkour

this study was conducted to investigate the effects of applying methods andamount of ammonium polyphosphate (0, 2 and 4 wt%) on fire retardancy andmechanical properties of wood flour/polypropylene composites. the resultsshowed that addition of fire retardant improved the mechanical properties such astensile and flexural strengths and fire retardancy of composites. but by increasingof fire retar...

2017
Leon Mishnaevsky Kim Branner Helga Nørgaard Petersen Justine Beauson Malcolm McGugan Bent F Sørensen

A short overview of composite materials for wind turbine applications is presented here. Requirements toward the wind turbine materials, loads, as well as available materials are reviewed. Apart from the traditional composites for wind turbine blades (glass fibers/epoxy matrix composites), natural composites, hybrid and nanoengineered composites are discussed. Manufacturing technologies for win...

2013
Narendra Reddy Yiqi Yang

Lightweight composites are preferred for automotive applications due to the weight restrictions and also due to the presence of inherent voids that can enhance the sound absorption of these composites. The density of the reinforcing materials plays a crucial role in such lightweight composites. Milkweed is a unique natural cellulose fiber that has a completely hollow center and low density (0.9...

Journal: :Perception 2005
Gillian Rhodes Kieran Lee Romina Palermo Mahi Weiss Sakiko Yoshikawa Peter Clissa Tamsyn Williams Marianne Peters Chris Winkler Linda Jeffery

Averaged face composites, which represent the central tendency of a familiar population of faces, are attractive. If this prototypicality contributes to their appeal, then averaged composites should be more attractive when their component faces come from a familiar, own-race population than when they come from a less familiar, other-race population. We compared the attractiveness of own-race co...

Journal: :The Chinese journal of dental research : the official journal of the Scientific Section of the Chinese Stomatological Association 2012
Jian Min Han Hong Lin Gang Zheng Akiyoshi Shinya Harunori Gomi Akikazu Shinya Jie Lin

OBJECTIVE To compare the wear resistance and surface roughness of nanofiller-containing composites and microhybrid composites after simulated wear. METHODS Five microhybrid composites and five nanofiller-containing resin composites were included in the study. Six cylindrical specimens with a diameter of 10 mm and a thickness of 6 mm for each material were prepared. The volume loss, vertical l...

2013
Narendra Reddy Yiqi Yang

Soyprotein–jute fiber composites developed using water without any chemicals as the plasticizer show much better flexural and tensile properties than polypropylene–jute composites. Co-products of soybean processing such as soy oil, soyprotein concentrate and soy protein isolates are inexpensive, abundantly available and are renewable resources that have been extensively studied as potential mat...

Journal: :جنگل و فرآورده های چوب 0
سامان قهری دانشجوی دکتری فرآورده های چندسازة چوب گروه علوم و صنایع چوب و کاغذ دانشکدة منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس، نور، ایران بهبود محبی دانشیار گروه علوم و صنایع چوب و کاغذ دانشکدة منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس، نور، ایران سعید کاظمی نجفی استاد گروه علوم و صنایع چوب و کاغذ دانشکدة منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس، نور، ایران

the effect of impact modifier on creep behavior of wood flour- recycled polypropylene composites has been evaluated in this work. for this purpose, impact modifier (ethylene vinyl acetate) and recycled polypropylene were mixed with wood flour (50/50% w/w) as well as the impact modifier (0, 3%, 6% and 9%) by a counter-rotating twin-screw extruder to manufacture the wood flour- recycled polypropy...

2017
Yang Chen Ailian Chen Jiawei Qin

Organic/inorganic composite particles with a core–shell structure exhibit potential applications in chemical mechanical polishing/planarization (CMP) for mechanically challenging materials (copper and low-k dielectrics etc.). In this work, the spherical composites comprised of polystyrene (PS) cores and mesoporous silica (mSiO2) shells were synthesized through a self-assembly of cetyltrimethyla...

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