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In materials technology, surface analysis is used in three principal modes: problem solving in quality control for existing processes and materials; materials characterization after surface coating, reaction or modification; and development of new materials or processes. To illustrate each of these modes with a few examples, in problem solving, difficulties with contamination, coating chemistry, adherence (e.g. delamination), discolouration and changes in surface reactivity are common. Materials characterization includes the rapidly expanding industry of surface engineering for corrosion and wear resistance, alteration of oxide surfaces for composite (e.g. polymer) compatibility and thin film deposition. The last area encompasses long-term projects in processes as diverse as minerals separation and catalyst design, materials as diverse as slow-release fertilizers and superconductors.
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