Vol. 2 of "Progress in Materials Analysis" contains the lectures of the 12th Colloquium on Materials Analysis, Vienna, May 13-15, 1985. Due to the top level international participation from industry and research insti tutions the proceedings offer a survey of the present state and current trends in materials analysis of high actuality. The major topics covered are surface, micro and trace analysis of materials with a special emphasis on metals but also including other materials like ceramics, semiconductors, polymers. According to the strategy of the meeting attention is focussed on an...