Image, Microstructure and Microanalysis Unit - IMICROS



In the frame of CEMUP objectives, its current activity includes :

  1. the support to university research projects

  2. the organization and collaboration in training activities:
    • organization of courses on:
      • Scanning Electron Microscopy (SEM) and X-ray Microanalysis (EDS/WDS)
      • X-Ray Photoelectron Spectroscopy (XPS)
      • Quantitative Metallography and Quantitative Image Analysis

    • support, in the field of SEM/EDS and XPS and Quantitative Metallography, to specialization and  postgraduate courses organized by the University of Porto;

  3. the support to industrial product control and failure analysis, directly or in co-operation with other university laboratories;

    • involving the characterization of :
      • metals, ceramics, polymers, biomaterials and composite materials, ...
      • metallic, ceramic and polymer coatings, ...;

    •  with the purpose of :
      • establishing the microstructure ( morphological and microanalytical )
      • measuring the dimensions ( thickness, size, fraction, ... ) of coatings, grains, phases, ...
      • evaluating  the surface and microstructural transformation of materials under corrosion, wear, heating ...;


Accounting the expertise and laboratory facilities, CEMUP is qualified for :

  • high spatial resolution, morphological and microstructural, characterization of surfaces
    • microstructure identification, dimensional characterization of phases, films, coatings and powders;
  • elemental analysis of microconstituents, surfaces and interfaces
    • simultaneous with imaging, with a spatial resolution ( lateral and in depth ) in the order of 1 micron;
  • elemental analysis, and chemical bonding, of surfaces and interfaces
    • with a depth resolution of a few nanometers;
  • elemental composition distribution analysis
    • along a surface, and in depth, with high spatial resolution.

of materials of very different nature:
>> metals, ceramics, composites, semiconductors, polymers, biomaterials, biological materials, ...

presented with very different shapes and aggregation conditions:
>> compact and porous samples, fragments, powders, films, coatings, ... .


The morphological characterization and local elemental analysis (non destructive)

 with high spatial resolution - lateral and in depth - enables materials characterization - microstructure and composition - and the analysis of surface and microstructure transformations that result from coating, wear, corrosion or transformation by heat or thermochemical and mechanical action with interest to : 

the evaluation, research and development of processing techniques and materials 

the characterization and control of the conditions of production 

and processing of materials

the control of quality and failure analysis