نتایج جستجو برای: mechanical properties enhancement

تعداد نتایج: 1142716  

Journal: :Materials 2021

To enhance the mechanical properties (e.g., strength and elongation) of face-centered cubic (fcc) α-phase in Au-Cu-Al system, this study focused on introduction martensite phase (doubled B19 (DB19) crystal structure Au2CuAl) via manipulation alloy compositions. Fundamental evaluations, such as microstructure observations, identifications, thermal analysis, tensile behavior examinations, reflect...

Journal: :تحقیقات مهندسی کشاورزی 0
محمد اکرامی دانشجوی کارشناسی ارشد گروه علوم و مهندسی صنایع غذایی پردیس کشاورزی و منابع طبیعی دانشگاه تهران زهرا امام جمعه استاد گروه علوم و مهندسی صنایع غذایی پردیس کشاورزی و منابع طبیعی دانشگاه تهران میلاد محمدی کیا دانشجوی کارشناسی ارشد گروه علوم و مهندسی صنایع غذایی پردیس کشاورزی و منابع طبیعی دانشگاه تهران

new edible composite films formed from salep (orchis mascula) and 10%, 20%, and 30% (w/w) oleic acid were prepared by emulsification with the aim of improving the water vapor barrier and mechanical properties of the film. as oleic acid concentration increased up to 30% (w/w), oxygen permeability (27%), elongation at break (86%) and thickness (2%) of salep films increased significantly and the t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه محقق اردبیلی - دانشکده کشاورزی 1387

چکیده ندارد.

Journal: :international journal of advanced design and manufacturing technology 0
hamed aghajani derazkola department of mechanical engineering , sari branch, islamic azad university, sari, iran. majid elyasi department of mechanical engineering, babol noshiravani university of technology, iran morteza hossienzadeh department of engineering, islamic azad university of ayatollah amoli branch, iran

the aim of this article is study of tool plunge depth (tpd) effects on mechanical properties of friction stir welding of aa1100 aluminium alloy to a441 aisi steel. for this purpose the 0.1, 0.2, 0.4, and 0.6 mm tpd selected and other welding parameters kept constant. the results shows that the frictional heat increases and stir zone grain size decreases with increasing tpd at both base metals. ...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

nowadays, nanoscale innovations in the forms of pathogen detection, active packaging, antimicrobial packaging and barrier formation are poised to elevate food packaging to new heights. antimicrobial nanocomposite ldpe films containing zno nanoparticles at different concentrations (e.g. 1%, 3%, 5%  and 3%  nano-zno pulse 10% polyethylene grafted maleic anhydride (pe-g-ma), w/w pure ldpe), were p...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
narmin bahrami adeh mitra mohtadi haghighi nahid mohammad hosseini

mixtures of mineral aggregate and modified sulfur, wherein the modified sulfur functions as a binder, are termed sulfur concretes or sulfur mortars depending on the form of the mineral aggregate. molten sulfur reacted with olefinic additive, at 130-140 ºc, and then mixed with preheated filler and aggregates. sulfur mortar samples were prepared by mixing 32 % molten sulfur, 10 % filler and 58 % ...

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