I'm doing a science research project on shape memory alloys and I need to buy these wires:1) NiTi (nickel-titanium)2) CuZnAl (Copper-Zinc-Aluminum)3)CuAlNi(Copper-Aluminum-Nickel)I can find NiTi everywhere on the web, but I can't find the other two, and I really need to buy them for my science project.Thank you so much if you can help (:
aluminium is a metalit has a valency of 3it has got all the props that a metal has for eg : lusturous, good conductor of heat and electricity.etc etcit is highly electropositive metalit has emptyd orbitals and thus can borrow electrons and attain a stable confugerationas its compounds are elctron deficient.! its compounds such as AlCl3 etc act as a lewis acid.the hybridisation state of Al is sp3d2aluminium forms a thin protective oxide layer which prevents its further corrossionand this is also the reason y they do not react with weak acidsAl is amphoteric(it reacts with acids as well as base) Al reacts with halogen to form trihalidesAl's covalency can be expected beyond 4 due to the presence of empty d orbitals.
