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Questions related from Armin Rajabi
3D printing is a process of making three dimensional solid objects from a digital file which object is created by laying down successive layers of material until the object is created
08 August 2019 7,103 1 View
CAB is similar for cellulose diacetate except that it is tougher, more durable and has better dimensional stability
10 October 2018 2,131 0 View
Fourier Transform-Infrared Spectroscopy (FTIR) is an analytical technique used to identify organic (and in some cases inorganic) materials. In this study, nano silver coated on the fabric at...
08 August 2018 6,190 3 View
The FTIR results revealed a increase in the peaks intensity for Ago-coated polyethylene terephthalate (PET) in the 2000–4000 cm-1
08 August 2018 3,640 0 View
UV spectroscopy is an important tool in analytical chemistry .When UV radiations are absorbed, this results to the excitation of the electrons from the ground state towards a higher energy state....
08 August 2018 8,183 7 View
Two different salt were solved in the distilled water in room temperature. The final reaction was done by hydrothermal method. So, I want to calculate the weight percentage the production. Can...
08 August 2017 7,944 1 View
Mechanical alloying (MA) is a relatively novel method that has been successfully applied for materials, such as intermetallic compounds and transition metal carbides, which are difficult to...
07 July 2017 1,123 10 View
I want to measure the contact angle of the nano metal oxide such as, Zn, Ag and Cu.
07 July 2017 393 7 View
The Burgers vector associated with a dislocation is a measure of the lattice distortion caused by the presence of the line defect. During mechanical alloying, the powders are subjected to...
03 March 2017 8,204 0 View
Density is defined as mass per unit volume. The density of the majority of the material is available in the literature. Actually I would like to find the density of TiC0.7N0.3 please let me know.
10 October 2015 3,498 2 View
How can measure the reactivity index for materials?
02 February 2015 870 2 View
Carbon is a main source of a reaction, eg carbothermal reaction is widely used. This reaction is usually exothermic. Can the presence of amorphous carbon be effective on results in DSC?
02 February 2015 1,180 11 View
Can anybody suggest, what is the best morphology of second phase in composite?In general, mechanical properties of composite can be depended to second phase (spherical, tube and fiber). So I want...
09 September 2014 7,062 20 View
After synthesizing, I need to measure the mechanical properties of nano-powders. Does anyone know how mechanical properties (e.g hardness, toughness) are measured in nano powders?
01 January 2014 4,532 13 View
e.g. bulk from the nano powders to test by nano indenter. In order to get mechanical properties nano powders, they should be tested by nano indenter. How much pressure is need to compact nano...
01 January 2014 6,980 1 View
Is Transverse rupture strength (TRS) used for ceramics? How is it different from bending strength?
08 August 2013 8,523 1 View
I am looking for ceramic coating used on Al-substrate as non-stick and anti wear. Please let me know which coating is most suitable.
07 July 2013 3,417 18 View
I am using Ar-gas as protector in the furnace. According to the flow meter, the usage quantity is 340 liter for each process at room temperature (1 liter/min). So, would you please let me know,...
07 July 2013 2,796 3 View
The quantity of oxygen increased after heating for ceramic materials at high temperature. So, I want to know, if absorption oxygen can improve density or not.
07 July 2013 675 1 View
Usually, after heat treatment at high temperature, ceramics will be faced with a problem of shrinkage. The geometry of of our samples are tablet ( diameter= 13mm, H=2mm)
07 July 2013 3,976 9 View
I need thermodynamic data about Cp, Enthalpy, Entropy for TiCN material.
09 September 2012 7,392 5 View
How I can prepare, non-stick ceramic coatings on Al substrate?
03 March 2012 7,852 0 View
