Norner has the insight to make microscopy investigation and failure analysis

Failure analysis by microscopy

Our microscopy analysis experts use a wide range of microscopy technology and techniques to investigate microscopic surface.

We investigate and identify failures and challenges in all segments, from gas to plastics and end use products in our Internationally recognised microscopy laboratory.

We have the insight to make microscopy investigation provide documentation of the following materials and products.

  • Plastics parts and packaging
  • Injection-, blow- and rotational moulding, extruded pipe, cable insulation, films, laminates, compounds and alloys
  • Metals and inorganic materials
  • Catalysts, polymer powders, morphology and homogeneity

Complex customer problems can be handled by identification of root causes with a variety of suitable laboratory techniques. This is useful for claim investigation, failure analysis and documentation. 

Norner offers advanced sample preparation and various microscopy failure analysis techniques. Our laboratory is able to investigate and identify challenges within the whole value chain. 

Typical causes for failure in plastics

  • Mechanical strain, pressure burst
  • Chemical stress cracking
  • Gels and inhomogeneity, contaminations, inclusions 
  • Stress introduced by processing or mould/product design
  • Recommended service conditions
  • Misuse and traces of wrong handling and intended damage
  • Weakness in product design
  • Crystal morphology, microstructures, fracture surfaces, bulk and surface structures
  • Flow patterns of build in stresses in plastic parts
  • Distribution of different phases in complex materials
  • Distribution/dispersion of pigments, fillers and carbon black
  • Product and material imperfections like poor surface plainness, blisters, nibs, voids, contaminations, notches, micro cracks, breakage, discoloration

Typical causes for failure in metals

  • Carburization / decarburization 
  • Stress relaxation cracking and stress corrosion cracking 
  • Fatigue, corrosion fatigue, overload and creep damage
  • Hydrogen and Sigma phase embrittlement
  • Corrosion in metals
  • Dealloying and Liquid metal embrittlement

Norner uses advanced instruments to identify and determine causes and solutions for failure analysis

  • Bulk composition of a material or compound
  • Identification of inclusions and gels
  • Oxidation stability
  • Identification of polymeric contaminants and chemical attacks
  • Identification and amount of specific additives, odour and outgassing
  • Measurement of Carbonyl peak to detect oxidation/degradation
  • Polymer compositions, crystallinity and detection of foreign components

Norner can support the investigation further by test methods 

  • Impact resistance
  • Stress crack
  • Fatigue testing
  • Weld properties
  • Tensile modulus
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