Kiran: Quickly you can consult some of my papers where we did both. See, rheology provides you mechanical strength, gelation mechanism and gel point etc. Whereas SEM, TEM provide you microstructure of the particles or different layers for example nanocomposite it shows intercalation or exfoliation etc. For starch or protein it shows the vacoules, cellular structure etc.

Dear  sir

there are a complete correlation between both two techniques for example if there are non homogenized gel which came from non complete gel formation then the TEM figs will clear such structure.