نتایج جستجو برای: nanopowders

تعداد نتایج: 859  

Journal: :فرآیندهای نوین در مهندسی مواد 0
علی اصغر بیک زاده دانشجوی کارشناسی ارشد دانشگاه آزاد اسلامی واحد نجف آباد سید علی حسن زاده تبریزی استادیار مهندسی مواد / دانشگاه آزاد اسلامی واحد نجف آباد

in this article vanadium boride nanopowder was synthesized by mechanochemical reduction method in a high-energy ball mill. the synthesized powders were studied by x-ray diffraction (xrd), scanning electron microscopy (sem), xray map and transmission electron microscopy (tem). according to x-ray diffraction the product predominantly consists of vb phases after 100 min milling without further hea...

Journal: :journal of the iranian chemical research 0
ali ainirad department of chemistry, university of science and technology of iran, tehran, iran

in this work, ce0.75gd0.1ca0.15o1.8 nanopowders are successfully synthesized by a glycine-nitrate combustionprocess under the microwave irradiation. then calcination was carried out at 700 °c. calcined powdersidentified by room temperature x-ray diffraction were single phase and had a crystallite size between 16 to 24nm (based on schererr formula). scanning electron microscopy (sem) was employe...

Journal: :international journal of nano dimension 0
m. enhessari department of chemistry, naragh branch, islamic azad university, naragh, iran. a. parviz department of chemistry, naragh branch, islamic azad university, naragh, iran. k. ozaee young researchers club, naragh branch, islamic azad university, naragh, iran. h. habibi abyaneh department of chemistry, payame noor university, delijan, iran.

nowadays various methods are presented for synthesis of barium strontium titanate (bst) nanopowders with different morphology and properties. each of these (bst)s has got individual characterization that makes it suitable for a special application. every method has a special quality, causes it to have preference over the other methods. low processing temperature is a desired point which most of...

2003
M. M. Mathew

Nanosized Powders are known to have very useful applications in the areas of medical, structural, chemical and other various fields because of their enhanced physical, optical, and magnetic properties. Several Synthesis methods have been developed for the production of nanopowders. This paper will discuss different methods used for the production of nanosized powders and their advantages and di...

Journal: :Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2011

Journal: :IOP Conference Series: Materials Science and Engineering 2013

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