Recent content by Rasputin

From my Prof., I understood that there is no questions about the budget. Required analysis for new synthesized ceramic and metallic powders, nano powders, some metallic and polimeric surfaces, bulk metals (I'm talking about new phases formation in cast metals such as Al alloys).

Hi everybody, we are looking for powder XRD purchase to our University. Is anyone tell me what firm is better, what kind of accessories to purchase? I heard that Panalytical made some device for nanomaterials size measurements. Anybody knows how does it works and is this good? Thanks a lot.

Modey3, Thanks, I got this book and seems very good with good theories and their explaining.

He means all kinds of aluminium as compare to steel where grain size have a big influence to its mechanical properties.

Hi everyone! I have a question about mechanical properties of the materials. As I understand, when in metals microstructure the grains size decreases, the mechanical properties increases, specially metals strengthening. But I have a discussion with one Prof. who says that this is a minor...

Hi, in my opinion you need use the same parameters. Heat treatment main idea is the difussion of the atoms, so there is the time needed for this process.

Hello everybody! I have a question: how can I calculate the particle size? It is common technique which called Scherrer equation used by XRD, it is also used TEM and SEM images, but I want be sure with my calculations and not to trust only to mentioned techniques. Thank you for your...

Thanks chemisttree, but I must know exactly the product gas because I have to calculate empiric weight of the reactants.

I have a simple question. What will be the products of the SiC producing reaction: SiO2 + C = SiC + ? (I twill be CO, CO2, O2 ?) Thanks.

Chemisttree thanks a lot, I searched in internet and I will look in some books at my work. Rasputin

I get amorphous SiO2 (quartz) using planetary ball mill after 20h of milling, although my aim was to get nano sized particles. My question is if I can react it with some metals or carbon, for example if the reaction: SiO2 + 2C = SiC + CO will occur. If anyone can help me to find some...