synthesize and investigate the austenitic nanostructural propertise

the austenitic stainless steel (ss) has been used as a material for  building  ultra  high  vacuum  (uhv)  chamber.  recently significant  efforts  have  been  concerned  a  comparing  the standard  cleaned  for  ultra  high  vacuum,  passivity  stainless. in  this work austenitic  nanocomposites were  synthesize by sol-  gel method. the morphologies  and  topographies  of  the samples  have  been  studied  with  using  scanning  electron microscopy  (sem)  and  x-ray  diffraction  (xrd) techniques.  the  principal  aim  is  the  nanostructural evolution  of  these  samples.  the    obtained  results  indicate that adding 10.8 gr ni particles  into ss matrix,modified ss device mechanical structures.